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Ordinance 13521
ORDINANCE NO01 AN ORDINANCE AMENDING THE FORT WORTH PLUMBING CODE, CODIFIED AS CHAPTER 26 OF THE CODE OF THE CITY OF FORT WORTH (1986), AS AMENDED, BY ADOPTING THE 1997 INTERNATIONAL PLUMBING CODE, WITH LOCAL AMENDMENTS, REGULATING THE ERECTION, CONSTRUCTION, ENLARGEMENT, ALTERATION, REPAIR, MOVING, REMOVAL, DEMOLITION, CONVERSION, EQUIPMENT, USE AND MAINTENANCE OF PLUMBING AND DRAINAGE SYSTEMS FOR BUILDINGS AND STRUCTURES IN THE CITY OF FORT WORTH, AND OUTSIDE THIS JURISDICTION IF THE SAME ARE CONNECTED TO THE CITY WATER OR SEWAGE SYSTEMS, CREATING AN ADMINISTRATION OFFICE AND PLUMBING BOARD AND PRESCRIBING THEIR DUTIES, DEFINING CERTAIN TERMS, ESTABLISHING MINIMUM REQUIREMENTS FOR THE INSTALLATION, ALTERATION OR REPAIR OF PLUMBING AND DRAINAGE SYSTEMS, PROVIDING FOR THE ISSUANCE OF PERMITS AND THE COLLECTION OF FEES THEREFOR, PROVIDING FOR THE INSPECTION OF PLUMBING AND DRAINAGE SYSTEMS, PROVIDING FOR • SEVERABILITY CLAUSE, PROVIDING FOR A SAVINGS CLAUSE, PROVIDING FOR • PENALTY CLAUSE, PROVIDING FOR PUBLICATION IN PAMPHLET FORM, PROVIDING FOR PUBLICATION IN THE OFFICIAL NEWSPAPER, AND PROVIDING AN EFFECTIVE.DATE. BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF FORT WORTH, TEXAS SECTION 1 That Section 26 -1 of the Code of the City of Fort Worth (1986), as amended, is hereby amended to read as follows See. 26 -1. Code -Adopted. (a) The Plumbing Code of the City is hereby revised and amended to conform, with certain exceptions as specified below, to the 1997 International Plumbing Code of the International Code Council (ICC), and the same as amended is hereby adopted as the City's Plumbing Code. One (1) copy of the 1997 International Plumbing Code, marked Exhibit "A ", is incorporated herein by reference and shall be filed in the Office of the City Secretary for permanent record and inspection. (b) The IPC installation standards contained in the 1997 International Plumbing Code (Exhibit "A ") are adopted as part of the City's Plumbing Code and are under the administrative and interpretative authority as prescribed in this code. SECTION 2 That Section 26 -2 of the Code of the City of Fort Worth (1986), as amended, is hereby amended 09 as follows Sec. 26 -2. Same -Amendments. (a) The 1997 International Plumbing Code is hereby amended by revising Chapter 1 "ADMINISTRATION" to read as follows PART I - ADMINISTRATIVE Chapter A TITLE, SCOPE AND GENERAL SECTION A01 - GENERAL A01 1 Title. These regulations shall be known as the "Fort Worth Plumbing Code," may be cited as such, and will herein be referred to as "this code." A01.2 Scope. (a) The provisions of this code shall apply to the erection, installation, alteration, repair, relocation, replacement, addition to, use or maintenance of plumbing systems within this jurisdiction, and outside this jurisdiction if the same are connected to the city water or sewage systems. Provisions in the appendices shall not apply unless specifically adopted. (b) This code is not intended to apply to that work done by the proper employees of the City or other companies furnishing water in the laying of water mains and services and city sewer mains and services, or to the installation of gas distributing mains and services in the streets, alleys and easements by employees of the gas distributing company A01.3 Intent. The purpose of this code is to provide minimum standards to safeguard life or limb, health, property and public welfare by regulating and controlling the design, construction, installation, quality of materials, location, operation, and maintenance or use of plumbing equipment and systems. The purpose of this code is not to create or otherwise establish or designate any particular class or group of persons who will or should be especially protected or benefited by the terms of this code. A01.4 Severability If any section, subsection, sentence, clause or phrase of this code is for any reason held to be unconstitutional, such decision shall not affect the validity of the remaining portions of this code N SECTION A02 - APPLICABILITY A02.1 General. The provisions of this code shall apply to all matters affecting or relating to structures or premises, asset forth in Section A01 Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. A02.2 Existing installations. Plumbing systems lawfully in existence at the time of the adoption of this code shall be permitted to have their use and maintenance continued if the use, maintenance or repair is in accordance with the original design and no hazard to life, health or property has been created by such plumbing system. A02.3 Maintenance. All plumbing systems, materials and appurtenances, both existing and new, and all parts thereof, shall be maintained in proper operating condition in accordance with the original design in a safe and sanitary condition. All devices or safeguards required by this code shall be maintained in compliance with the code edition under which installed. The owner or the owner's designated agent shall be responsible for maintenance of plumbing systems. To determine compliance with this provision, the code official shall have the authority to require any plumbing system to be reinspected. A02.4 Additions, alterations or repairs. Additions, alterations, renovations or repairs to any plumbing system shall conform to that required for a new plumbing system without requiring the existing plumbing system to comply with all the requirements of this code. Additions, alterations or repairs shall not cause an existing system to become unsafe, insanitary or overloaded. Minor additions, alterations, renovations and repairs to existing plumbing systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved. A02.5 Change in occupancy. It shall be unlawful to make any change in the occupancy of any structure that will subject the structure to any special provision of this code applicable to the new occupancy without approval of the code official. The code official shall certify that such structure meets the intent of the provisions of law governing building construction for the proposed new occupancy and that such change of occupancy does not result in any hazard to the public health, safety or welfare. A02.6 Historic buildings. The provisions of this code relating to the construction, alteration, repair, enlargement, restoration, relocation or moving of buildings or structures shall not be mandatory for existing buildings or structures identified and classified by the state or local jurisdiction as historic buildings when such buildings or structures are fudged by the code official to be safe and in the public interest of health, safety and welfare regarding any proposed construction, alteration, repair, enlargement, restoration, relocation or moving of buildings. Exception Buildings undergoing a change of occupancy A02.7 Moved buildings. Plumbing systems that are part of buildings or structures moved into or within the jurisdiction shall comply with the provisions of this code for new installations. A02.8 Referenced codes and standards. The codes and standards referenced in this code shall be those that are listed in Chapter 14, are considered part of the requirements of this code to the prescribed extent of each such reference, and are under the administrative and interpretative authority as prescribed in this code. Where the requirements of reference standards or manufacturer's installation instructions do not conform to minimum provisions of this code, the provisions of this code shall apply A02.9 Appendices adopted. The following appendices are adopted and are considered to be part of this code Appendix E - Sizing of Water Piping Systems A02.10 Requirements not covered by code. Any requirements necessary for the strength, stability or proper operation of an existing or proposed plumbing system, or for the public safety, health and general welfare, not specifically covered by this code, shall be determined by the code official. SECTION A03 - APPROVAL A03.1 Modifications. Whenever there are practical difficulties involved in carrying out the provisions of this code, the code official shall have the authority to grant modifications for individual cases, provided the code official shall first find that special individual reason makes the strict letter of this code impractical and the modification is in conformity with the intent and purpose of this code and that such modification does not lessen health, life and fire safety requirements. The details of action granting modifications shall be recorded and entered in the files of the inspection department. A03.2 Alternate materials, methods and equipment. The provisions of this code are not intended to prevent the installation of any material or to prohibit any method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material or method of construction shall be approved where the code official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety A03.3 Required testing. Whenever there is insufficient evidence of compliance with the provisions of this code, or evidence that a material or method does not conform to the 11 requirements of this code, or in order to substantiate claims for alternate materials or methods, the code official shall have the authority to require tests as evidence of compliance to be made at no expense to the jurisdiction. A03.3 1 Test methods. Test methods shall be as specified in this code or by other recognized test standards. In the absence of recognized and accepted test methods, the code official shall approve the testing procedures. A03.3.2 Testing agency. All tests shall be performed by an approved agency A03.3.3 Test reports. Reports of tests shall be retained by the code official for the period required for retention of public records. A03.4 Material and equipment reuse. Materials, equipment and devices shall not be reused unless such elements have been reconditioned, tested, placed in good and proper working condition, and approved. SECTION A04 - VIOLATIONS A04.1 Unlawful acts. It shall be unlawful for any person, firm or corporation to erect, construct, alter, repair, remove, demolish or utilize any plumbing system, or cause same to be done, in conflict with or in violation of any of the provisions of this code. A04.2 Violation penalties. Any person, firm or corporation who shall violate a provision of this code or shall fail to comply with any of the requirements thereof or who shall erect, install, alter or repair plumbing work in violation of the approved construction documents or directive of the code official, or of a permit or certificate issued under the provisions of this code, shall be deemed guilty of a misdemeanor and conviction thereof shall be punishable by a fine not to exceed Two Thousand Dollars ($2,000 00) for all violations involving fire safety, or public health and sanitation and shall be fined not more than Five Hundred Dollars ($500 00) for all other violations of this ordinance. Each day or any portion thereof during which any violation of this ordinance occurs or continues shall be deemed a separate offense and upon conviction thereof shall be punishable as herein provided. A04.3 Stop work orders. Upon notice from the code official, work on any plumbing system that is being done contrary to the provisions of this code or in a dangerous or unsafe manner shall immediately cease. Such work shall not resume until authorized by the code official to proceed. Such notice shall be in writing and shall be given to the owner of the property, or to the owner's agent, or to the person doing the work or causing such work to be done. Where an emergency exists, the code official shall not be required to give a written notice prior to stopping the work. A04.4 Abatement of violation. The imposition of the penalties herein prescribed shall not preclude the legal officer of the jurisdiction from instituting appropriate action to prevent unlawful construction or to restrain, correct or abate a violation, or to prevent illegal occupancy 5 of a building, structure or premises, or to stop an illegal act, conduct, business or utilization of the plumbing on or about any premises A04.5 Unsafe plumbing. Any plumbing regulated by this code that is unsafe or that constitutes a fire or health hazard, insanitary condition, or is otherwise dangerous to human life is hereby declared unsafe. Any use of plumbing regulated by this code constituting a hazard to safety, health or public welfare by reason of improper installation, inadequate maintenance, dilapidation, obsolescence, fire hazard, disaster, damage or abandonment is hereby declared an unsafe use. Any such unsafe equipment is hereby declared to be a public nuisance and shall be abated by repair, rehabilitation, demolition or removal. When any plumbing is maintained in violation of this code, and in violation of any notice issued pursuant to the provisions of this section, the code official may institute any appropriate action to prevent, restrain, correct or abate the violation. A04.5.1 Authority to condemn equipment. Whenever the code official determines that any plumbing, or portion thereof, regulated by this code has become hazardous to life, health or property or has become insanitary, the code official shall order in writing that such plumbing either be removed or restored to a safe or sanitary condition. A time limit for compliance with such order shall be specified in the wntten notice. No person shall use or maintain defective plumbing after receiving such notice. A04.5.2 Authority to order disconnection of utilities. The code official shall have the authority to order disconnection of any plumbing supplied to a building, structure or equipment regulated by this code when it is determined that the equipment or any portion thereof has become hazardous or insanitary Written notice of such order to disconnect service and the causes therefor shall be given within 24 hours to the owner and occupant of such building, structure or premises, provided, however, that in cases of immediate danger to life or property, such disconnection shall be made immediately without such notice. The code official shall immediately notify the serving utility in writing of the issuance of such order to disconnect. A04.5.3 Connection after order to disconnect. No person shall make connections from any energy, fuel, power supply or water distribution system or supply energy, fuel or water to any equipment regulated by this code that has been disconnected or ordered to be disconnected by the code official or the use of which has been ordered to be discontinued by the code official until the code official authorizes the reconnection and use of such equipment. G Chapter B ORGANIZATION AND ENFORCEMENT SECTION B01 - ORGANIZATION BO1 1 Code Official. Whenever the term "code official" is used in this code, it shall be construed to mean the Building Official or his authorized representative(s) The code official shall not be removed from office except for cause and after full opportunity to be heard on specific and relevant charges The code official shall have the power to render interpretations of this code as may be deemed necessary in order to clarify the application of the provisions of this code. Such interpretations shall be in conformity with the intent and the purpose of this code. B01.2 Deputies. In accordance with the prescribed procedures of this jurisdiction, the code official shall have the authority to appoint a deputy code official, other related technical officers, inspectors and other employees. For the purpose of this code, the regularly authorized deputy code official shall be the Chief Plumbing Inspector 1301.3 Department having jurisdiction. Unless other wise provided for by law, the office of the code official shall be part of the Development Department. B01.4 Restriction of employees. An official or employee connected with the department of plumbing inspection shall not be engaged in or directly or indirectly connected with the furnishing of labor, materials or appliances for the construction, alteration or maintenance of a building; and such officer or employee shall not engage in any work that conflicts with official duties or with the interests of the department. Further no official or employee shall be permitted to work for, or be connected with, any master plumber, plumbing manufacturer or wholesale plumbing and supply company, or do any plumbing work while employed as a plumbing inspector by the city B01.5 Liability The code official charged with the enforcement of this code, acting in good faith and without malice in the discharge of the duties required by this code or other pertinent law or ordinance shall not thereby be rendered personally liable for damages that may accrue to persons or property as a result of an act or by reason of an act or omission in the discharge of such duties A suit brought against the code official or employee because of such act or omission performed by the code official or employee in the enforcement of any provision of such codes or other pertinent laws or ordinances implemented through the enforcement of this code or enforced by the code enforcement agency shall be defended by this j unsdiction until final termination of such proceedings and any judgment resulting therefrom shall be assumed by this jurisdiction. 7 This code shall not be construed to relieve from or lessen the responsibility of any person owning, operating or controlling any building or structure for any damages to persons or property caused by defects, nor shall the code enforcement agency or its parent jurisdiction be held as assuming any such liability by reason of the inspections authorized by this code or any permits or certificates issued under this code SECTION B02 - DUTIES AND POWERS OF THE CODE OFFICIAL B02.1 General. The code official shall enforce all of the provisions of this code and shall act on any question relative to the installation, alteration, repair, maintenance or operation of all plumbing systems, devices and equipment except as otherwise specifically provided for by statutory requirements or as provided for in Section B02.2 through B02.9 B02.2 Rule- making authority The code official shall have authority as necessary in the interest of public health, safety and general welfare to adopt and promulgate rules and regulations to interpret and implement the provisions of this code to secure the intent thereof and to designate requirements applicable because of local climatic or other conditions. Such rules shall not have the effect of waiving structural or fire performance requirements specifically provided for in this code, or of violating accepted engineering practice involving public safety B02.3 Applications and permits. The code official shall receive applications and issue permits for the installation and alteration of plumbing, inspect the premises for which such permits have been issued, and enforce compliance with the provisions of this code. B02.4 Inspections. The code official shall make all the required inspections, or shall accept reports of inspection by approved agencies or individuals. All reports of such inspections shall be in writing and be certified by a responsible officer of such approved agency or by the responsible individual. The code official is authorized to require expert opinion, as deemed necessary, to report on unusual technical issues that anse, at no expense to the jurisdiction. B02.5 Right of entry. Whenever it is necessary to make an inspection to enforce the provisions of this code, or whenever the code official has reasonable cause to believe that there exists in any building or upon any premises, any condition or violation of this code that make the building or premises unsafe, insanitary, dangerous or hazardous, the code official shall have the authority to enter the building or premises at all reasonable times to inspect or to perform the duties imposed upon the code official by this code If such building or premises is occupied, the code official shall present his credentials to the occupant and request entry If building or premises is unoccupied, the code official shall first make a reasonable effort to locate the owner or other person having charge or control of the building or premises and request entry If entry is refused, the code official shall have recourse to every remedy provided by law to secure entry When the code official shall have first obtained a proper inspection warrant or other remedy provided by law to secure entry, no owner, occupant, or person having charge, care or control of any building or premises shall fail or neglect, after proper request is made as herein provided, to promptly permit entry therein by the code official for the purpose of inspection and examination pursuant to this code B02.6 Identification. The code official shall carry proper identification when inspecting structures or premises in the performance of duties under this code B02.7 Notices and orders. The code official shall issue all necessary notices or orders to ensure compliance with this code B02.8 Department records. The code official shall keep official records of applications received, permits and certificates issued, fees collected, reports of inspections, and notices and orders issued. Such records shall be retained in the official records for the period required for the retention of public records. B02.9 Cooperation of other officials and officers. The code official may request, and shall receive, the assistance and cooperation of other officials of this jurisdiction so far as is required in the discharge of the duties required by this code or other pertinent law or ordinance. SECTION B03 - BOARD OF APPEALS (PLUMBING BOARD) B03.1 Creation. The City Council hereby establishes a Plumbing Board (the Board) for the purpose of determining the acceptability and adequacy of materials, equipment, and methods of installation. B03.2 Membership. The Board shall consist of nine citizen members to be appointed as follows Place #1 A Master Plumber licensed by the State of Texas and having ten years of active continuous experience in the plumbing field. Place #2. A Master Plumber licensed by the State of Texas and having ten years of active continuous experience in the plumbing field. Place #3 A Journeyman Plumber licensed by the State of Texas and having five years of active continuous experience in the plumbing field. Place #4 A Journeyman Plumber licensed by the State of Texas and having five years of active continuous experience in the plumbing field. Place #5 A Mechanical Contractor whose firm is registered by the City of Fort Worth. Place #6 A Mechanical Engineer licensed by the State of Texas and who regularly designs plumbing installations. Place #7 A Landscape Irrigator licensed by the State of Texas. 7 Place #8 A citizen who is not connected with the construction industry in any way Place #9 A citizen who is not connected with the construction industry in any way B03.3 The nine members shall be appointed by the City Manager with the advice and consent of the City Council. Members shall serve two -year terms. Members appointed to odd - numbered places shall serve terms which expire October 1 of the odd numbered years and members appointed to even - numbered places shall serve terms which expire October 1 of the even numbered years. No member shall serve more than three consecutive two -year terms and the term of current members shall be counted toward the limit of terms to be served for purposes of this ordinance The members shall serve until their successors are appointed. B03.4 Compensation of members. All members shall serve without compensation, except for reimbursement for authorized expenses attendant to the performance of their duties. B03.5 Ex- officio members. The City Environmental Health Manager of the Department of Public Health, the Director of the Water Department and the code official, or their authorized representatives, shall serve as ex- officio members. As ex- officio members, they shall have the right to make and second motions but shall not have the power to vote. B03 6 Successors; Removal from Office. Should any one of the nine members of the Board die, become unable to act for any reason, resign or be removed for cause, as hereinafter provided, the City Manager shall appoint a successor to fill the unexpired term or to serve until a new member can be duly appointed. The City Council may remove any member of the Board during the term of which he may be appointed. The action of the City Council in such matters shall be final. B03.7 Chairman; Vice - chairman. It shall be the duty of the Board to meet as soon as is practicable each October and organize by selecting one of their members as chairman and another as vice - chairman. B03.8 Meetings; Quorum. Regular meetings of the Board shall be scheduled on a monthly basis, except that meetings may be canceled when there is no business to come before the Board. Five members of the Board shall constitute a quorum for the transaction of business. Every matter before the Board for vote shall require for final passage the affirmative vote of a majority of the members present and voting. B03.9 Secretary. The code official, or a designated individual, shall serve as secretary to the Board. The secretary shall keep a full record of the proceedings of the Board. The Secretary shall maintain a complete record and minutes of the actions of the Board. The Secretary shall transmit to the Board all relevant records and data upon which the appeal was taken. 10 B03.10 Right of Appeal. Any person, firm, company or corporation aggrieved by a decision or order of the code official may appeal such decision or order to the Board if it falls within the Board's authority B03.10.1 Time. Every appeal must be filed in writing on the form provided by staff with the code official within thirty (30) days from the date of the decision or order appealed from. Such appeal shall contain appropriate reference to the decision or order appealed from, as well as the grounds for the appeal. B03.10.2 Fee. At the time of filing an appeal, the appellant shall pay a non- refundable appeal fee as set forth in Table C05.2. B03.10.3 Hearing. The Board shall fix a reasonable time for the hearing of an appeal and shall give notice of said hearing in writing to the parties in interest. Parties may appear before the Board in person, by agent or by attorney The Board may require additional data and tests necessary for adequate decision of the appeal. The Board shall notify the appellant of its decision. B03 11 Authority and Power. It shall be the duty of the Board to hear any written appeal or complaints made by any plumber, citizen or otherwise, that may have a bearing upon the efficient enforcement of the plumbing ordinances, and the Board shall take such action thereon as may be deemed proper and within its authority, provided that the same shall not be inconsistent with any laws of the State or this code or other ordinances of the City code The Board shall have no authority relative to the administrative provision of any of this B03.11.1 Interpretations. The Board shall have the authority and power to hear appeals on interpretations by the code official on this code. The Board may modify in whole or in part or may affirm the interpretation of the code official. No interpretations shall be heard by the Board until the code official has rendered a written interpretation. It shall be incumbent upon the code official to render a written interpretation within thirty (30) days of receipt of written request. B03 11.2 Alternate methods. The Board shall have the power to approve alternate methods of construction, provided that the Board finds the same degree of suitability, strength, fire resistance, effectiveness, durability, sanitation and safety exists in the alternate method as intended by the standards. B03 11.3 New methods and materials. The Board shall have the authority to approve new materials, methods, devices, etc , provided that the Board finds the same degree of suitability, strength, effectiveness, fire resistance, durability, sanitation and safety exists in the new methods as intended by the standards The Board, in approving 11 new materials and processes, shall rely upon recognized standards or practices. B03 114 Review ordinances. The Board may review from time to time the provisions of this code and recommend any necessary changes and/or improvements to the City Council. This review shall include consideration of suggestions from plumbers or the public at large which shall be obtained by means of open hearing as well as through the regular channels. B03 11.5 Hear appeals concerning the suspension or revocation of registration as specified in Section D02 B03 12 Stay of proceedings. An appeal shall stay all proceedings in connection with the decision or order appealed from, unless and until the code official shall have certified to the Board after notice of appeal has been filed that a stay would cause hazard to life or property Any work done contrary to the order of the code official after filing an appeal hereunder, pending the determination of such appeal, shall be subject to nullification should the order be affirmed and.may not be considered by the Board as mitigating or extenuating circumstance. B03.13 Enforcement. The code official shall enforce and execute all legal decisions and orders of the Board for which they are respectively responsible B03.14 Court review A person, firm, company or corporation aggrieved by a decision or order of the Board may present to a District Court a petition, duly venfied, setting forth that such decision is illegal, in whole or in part, specifying the grounds of illegality Such petition shall be presented to the Court within ten (10) days after the filing of the decision of the board. Chapter C PERMITS AND INSPECTIONS SECTION CO1 - PERMITS CO1.1 When required. Any owner, authorized agent or contractor who desires to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any plumbing system, the installation of which is regulated by this code, or to cause any such work to be done, shall first make application to the code official and obtain the required permit for the work. permit: A separate permit shall be obtained for each building or structure C01.2 Exempt work. The following work shall be exempt from the requirement for a The stopping of leaks in drains, water, soil, waste or vent pipe, provided, however, that if any concealed trap, drainpipe, water, soil, waste or vent pipe 12 becomes defective and it becomes necessary to remove and replace the same with new material, such work shall be considered as new work and a permit shall be obtained and inspection made as provided in this code. 2. Replacement of exposed traps, replacement of valves, nipples to sinks and lavatories, replacement of plumbing fixtures; garbage disposals, dishwashers, clothes washers and similar appliances, provided that in all cases there is no change or replacement of plumbing piping. Exception: Replacement of water heaters and shower pans shall require a permit. The clearing of stoppages in drains, soil, waste and vent piping. 4 When the interceptor traps or house trailer site traps are installed at the same time as a building sewer on any lot, no sewer permit shall be required for the connection of any such trap to an appropriate inlet fitting provided in the building sewer by the permittee constructing such sewer Exemption from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. No person shall do plumbing work, with or without a permit, in violation of the State of Texas Plumbing License Law SECTION CO2 - WHOM PERMITS MAY BE ISSUED TO ,r CO2.1 General. No permit shall be issued to any person to do or cause to be done any work regulated by this code, except to a person holding a valid, unexpired and unrevoked State of Texas Master Plumber's License, and who has on file with the City a registration form as required in Section DO of this ordinance, except as otherwise hereinafter provided in this section. CO2.2 Homestead owner. Permits may be issued to a property owner who wishes to do plumbing work in a building owned and occupied by him as his homestead. The term "to do plumbing work" shall be construed to mean work actually done personally by the owner CO2.3 Appliance installation and service. Permits required by this code may be issued for appliance and installation service work done by anyone who is an appliance dealer or is employed by an appliance dealer, and acting as an appliance installation man or appliance service man in connecting appliances to existing piping installations, provided, however, that all work and service named or referred to in this section shall be subject to inspection and approval by the code official in accordance with the terms of this code. 13 CO2.4 Licensed Landscape Irrigators. Licensed Landscape Irrigators, when licensed under Article 8751, Tex. Rev Civ Stat. Ann., may be issued permits for installation of lawn irrigation systems. CO2.5 Maintenance employee. Permits required by this code may be issued for plumbing work done by anyone who is regularly employed as or acting as a maintenance man or maintenance employee, incidental to and in connection with the business in which he is employed or engaged or who does not engage in the occupation of a plumber for the general public, or, construction, installation and maintenance work done upon the premises or equipment of a railroad by an employee thereof who does not engage in the occupation of a plumber for the general public. SECTION CO3 - APPLICATION FOR PERMIT CO3.1 Application. Any person legally entitled to apply for and receive a permit shall make application on forms provided for that purpose. Every such application shall. 1 Identify and describe the work to be covered by the permit for which application is made. 2 Describe the land on which the proposed work is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed building or work. 3 Indicate the use or occupancy for which the proposed work is intended. 4 Be accompanied by plans, diagrams, computations and specifications and other data as required in Section CO3.2 Exception: Installations with less than forty (40) fixtures. 5 Be signed by the applicant or an authorized agent of the applicant. Exception: Applications made verbally by phone by registered individuals with a valid charge account. 6 Give such other data and information as may be required by the code official. CO3.2 Plans and specifications. Plans, specifications, engineering calculations, diagrams, soil investigation reports, special inspection and structural observation programs and other data shall constitute the submittal documents and shall be submitted in one or more sets with each application for a permit. When such plans are not prepared by an architect or engineer, the code official may require the applicant submitting such plans or other data to demonstrate that state law does not require that the plans be prepared by a licensed architect or engineer The code official may require plans, computations and specifications to be prepared and designed by an engineer or architect licensed by the state to practice as such even if not required by state law Exception The code official may waive the submission of plans, 14 calculations, construction inspection requirements and other data if it is found that the nature of the work applied for is such that reviewing of plans is not necessary to obtain compliance with this code. CO3.3 Information on plans and specifications. Plans and specifications shall be drawn to scale upon substantial paper or cloth and shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in detail that it will conform to the provisions of this code and all relevant laws, ordinances, rules and regulations. Plans for building of other than Group R, Division 3 and Group U Occupancies shall indicate how required structural and fire - resistive integrity will be maintained where penetrations will be made for plumbing pipes and similar systems. CO3 4 Architect or engineer of record. When it is required that documents be prepared by an architect or engineer, the code official may require the owner to engage and designate on the permit application an architect or engineer who shall act as the architect or engineer of record. If the circumstances require, the owner may designate a substitute architect or engineer of record who shall perform all of the duties required of the original architect or engineer of record. The code official shall be notified in writing by the owner if the architect or engineer of record is changed or is unable to continue to perform the duties. The architect or engineer of record shall be responsible for reviewing and coordinating all submittal documents prepared by others, including deferred submittal items, for compatibility with the design of the building. CO3.5 Deferred submittals. For the purpose of this section, deferred submittals are defined as those portions of the design that are not submitted at the time of the application and that are to be submitted to the code official within a specified period. Deferral of any submittal items shall have prior approval of the code official. The architect or engineer of record shall list the deferred submittals on the plans and shall submit the deferred submittal documents for review by the code official. Submittal documents for deferred submittal items shall be submitted to the architect or engineer of record who shall review them and forward them to the code official with a notation indicating that the deferred submittal documents have been reviewed and that they have been found to be in general conformance with the design of the building. The deferred submittal items shall not be installed until their design and submittal documents have been approved by the code official. CO3.6 Expiration of plan review Applications for which no permit is issued within 180 days following the date of application shall expire by limitation, and plans and other data submitted for review may thereafter be returned to the applicant or destroyed by the code official. The code official may extend the time for action by the applicant for a period not exceeding 180 days on request by the applicant showing that circumstances beyond the control of the applicant 15 have prevented action from being taken. No application shall be extended more than once In order to renew action on an application after expiration, the applicant shall resubmit plans and pay a new plan review fee. SECTION C04 - PERMIT ISSUANCE C04 1 Issuance. The application, plans, specifications, computations and other data filed by an applicant for a permit shall be reviewed by the code official. Such plans may be reviewed by other departments of this jurisdiction to verify compliance with any applicable laws under their jurisdiction. If the code official finds that the work described in an application for a permit and the plans, specifications and other data filed therewith conform to the requirements of this code and other pertinent laws and ordinances, and that the fees specified in Section C05 and all fees for water tap and sewer service have been paid, the code official shall issue a permit therefor to the applicant. When the code official issues the permit where plans are required, the code official shall endorse in writing or stamp the plans and specifications APPROVED Such approved plans and specifications shall not be changed, modified or altered without authorization from the code official, and all work regulated by this code shall be done in accordance with the approved plans. The code official may issue a permit for the construction of part of a plumbing system before the entire plans and specifications for the whole building or structure have been submitted or approved, provided adequate information and detailed statements have been filed complying with all pertinent requirements of this code. The holder of a partial permit shall proceed without assurance that the permit for the entire building or structure will be granted. C04.2 Withholding of permits. The code official is authorized to withhold permits to any person for the reasons set forth herein upon written notice to such person. The determination of the code official may be appealed to the Board as provided in Section B03 10 The code official is authorized to withhold the issuance of plumbing permits to any person until such time as the plumbing for which a permit was previously issued has been completed or is being performed in an efficient manner in a reasonable length of time. 2. any person who is delinquent in the payment of fees owed the City of Fort Worth. 3 any person who has performed previous fobs which remain in violation of this code. C04.3 Validity. The issuance of a permit or approval of construction documents shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of other ordinance of the jurisdiction. No permit presuming to give authority to violate or cancel the provisions of this code shall be valid. 16 The issuance of a permit based upon construction documents and other data shall not prevent the code official from thereafter requiring the correction of errors in said construction documents and other data or from preventing building operations being carried on thereunder when in violation of this code or of other ordinances of this jurisdiction. C04 4 Expiration. Every permit issued by the code official under the provisions of this code shall expire by limitation and become null and void if the work authorized by such permit is not commenced within 180 days from the date of such permit, or if the work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of 180 days. Before such work can be recommenced, a new permit shall be first obtained and the fee therefor shall be one -half the amount required for a new permit for such work, provided no changes have been made or will be made in the original construction documents for such work, and provided further that such suspension or abandonment has not exceeded one year In order to renew action on a permit after expiration, the permittee shall pay a new full permit fee. C04.5 Extensions. Any permittee holding an unexpired permit shall have the right to apply for an extension of the time within which the permittee will commence work under that permit when work is unable to be commenced within the time required by this section for good and satisfactory reasons. The code official shall extend the time for action by the permittee for a period not exceeding 180 days if there is reasonable cause. No permit shall be extended more than once. C04.6 Suspension or revocation of permit. The code official may, in writing, suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect information supplied, or in violation of any ordinance or regulation or any of the provisions of this code C04.7 Administrative hold. Any administrative discrepancy including but not limited to, delinquency in payments, returned checks, failure to pay for remspection, investigation or registration fees, and failure to keep registration, insurance or bond up -to -date, may result in a hold being placed on issuance of permits and performance of inspections of existing permits until the administrative discrepancy is corrected. For the purpose of this section, the term "up -to- date" shall mean that whenever any of these items is required by this or any other code to obtain a permit covered by this code, it shall be maintained current and in effect until the permit is finaled. C04.8 Retention of plans. One set of approved plans, specifications and computations shall be retained by the code official until final approval of the work covered therein. One set of approved construction documents shall be returned to the applicant, and said set shall be kept on the site of the building or work at all times during which the work authorized thereby is in progress C04.9 Job abandonment. If, after a permit is issued under the provisions hereof, the applicant abandons the fob, becomes incapacitated or his/her services are terminated prior to final 17 inspection and approval thereof by the code official and before the permit has expired, the applicant or his lawful /legal representative shall immediately notify the office of the code official in writing. Upon such notification, the code official shall immediately have an inspection made of the work completed to that time, and may revoke the outstanding permit and require that a new permit with the payment of fees be obtained before the work is allowed to resume SECTION C05 - FEES C05.1 General. Fees shall be assessed in accordance with the provisions of this section or shall be as set forth in the fee schedule adopted by this jurisdiction. C05.2 Permit fees. The fee for each permit shall be as set forth in Table C05.2 Any person obtaining a permit application required by this code shall, at the time of filing, pay a permit and application fee as required by this section for the installation, relocation or replacement of any of the listed items. Exceptions. 1 Where the fees for the new structures and additions to structures have been collected on a building permit, the permit fee is not required but the permit application shall be filed before work is commenced by the person doing the work. 2. Where these fees are being invoiced monthly and the account is past due, a penalty and/or interest charge as prescribed by the jurisdiction, shall be assessed. The above assessed fee and delinquent payment shall be paid before additional permits will be issued or additional inspections performed. 3 Buildings or structures owned and occupied by a Federal, State, or County entity on property owned by the Federal, State, or County entity shall be exempt from the permit fees. This exception does not apply to public school districts or county community colleges. 4 Work by non -city personnel on property under the control of the City of Fort Worth shall be exempt from the permit fees only if the work is for action under a contract approved by City Council with notes in the contract packages stating the fee is waived. 5 Work by City personnel on property under the control of the City of Fort Worth shall be exempt from the permit fees only if the application is accompanied by a copy of the work order for the project. Exemption of the permit fees under this section shall not waive the requirement to pay an investigation fee for doing work without a permit as required under Section C05.3 C05.3 Investigation fees: Work without a permit. C05.3 1 Investigation. Whenever any work for which a permit is required by this code has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work. Exceptions: 1 This provision shall not apply to emergency work when it shall be proved to the satisfaction of the code official that such work was urgently necessary and that it was not practical to obtain a permit therefore before the commencement of the work. In all cases, a permit must be obtained as soon as it is practical to do so, and if there be an unreasonable delay in obtaining such permit, an investigation fee as herein provided shall be charged. 2 The investigation fee required shall be charged for work for which an inspection has been requested and no permit has been obtained. C05.3.2 Fee. An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. The investigation fee shall be equal to the amount of the permit fee required by this code. The minimum investigation fee shall be the same as the application fee set forth in Table C05.2 The payment of such investigation fee shall not exempt any person from compliance with all other provisions of this code nor from any penalty prescribed by law C05.4 Change of record. Any request for a record change, or any mistake made by an applicant that requires a record change, including but not limited to name or address changes, whether computer or paper record, must be requested in writing by the original applicant with a fee as specified in Table C05.2. Exceptions. 1 For record changes that affect the permit fee, such as adding equipment, fixtures or square footage, the code official may require a separate permit for the extra items with the appropriate fees. 2. The fee will not be required for those applicants meeting exception 5 of Section C05.2 C05.5 Fee Refunds. The code official may authorize the refunding of any fee paid hereunder which was erroneously paid or collected. Where work for which a permit has been issued does not commence, and a request is made for a cancellation of such permit within a 60- day time limit, the permit fee may be returned, upon request, minus an administration charge of five dollars ($5 00) After the 60 day time limit, no fee shall be returned. Exceptions• 1 When the investigation fee of Section C05.3 has been collected, it shall not be refunded unless paid by another party 2. No refund will be given for the application fee. 19 Table C05.2 Schedule of Fees' Administrative Permit Application Fee $1000 Plumbing Board Appeal Fee 6000 Change of Record (per record or permit) 1000 Plumbing Items First Fixture or Appliance 550 Additional Fixtures or Appliances (each) 2.25 Sewer - First 120 feet 5.50 Each additional 100 feet or portion thereof 5.25 Gas Service 550 Each Lawn Sprinkler System 22.00 Water Service 5.50 Grease Trap or Interceptor 550 Sand Trap 1050 Each Roof Drain 5.25 Temporary Gas Service 5.50 Backflow Preventer 550 Floor Drain 2.25 Mobile Homes or Mobile Units Each mobile home space or mobile unit space 2000 Each sewer vent 12.00 Manhole 17.50 Other Inspections and Fees 1 Inspections outside of normal business hours (minimum of two hours) $30 00 per hour 2 Remspection fee assessed under provisions C06 6 2500 3 Inspections for which no fee is specifically indicated (minimum charge - one -half hour) $30 00 per hour 4 Additional plan review required by changes, additions or revisions to plans (minimum charge - one -half hour) $30 00 per hour 5 Inspections outside of city limits 4500 2 ' For the purpose of this table, a sanitary plumbing outlet on or to which a plumbing fixture or appliance may be set or attached, or any plumbing fixture or appliance to which a water connection may be made, shall be construed to be a fixture. Fees for reconnection and retesting of existing plumbing systems in relocated buildings shall be based on the number of plumbing fixtures, gas systems, water heaters, etc., involved. z Or $30.00 per hour, whichever is greater SECTION C06 - INSPECTIONS C06.1 General. All plumbing systems for which a permit is required by this code shall be inspected by the code official. No portion of any plumbing system shall be concealed until inspected and approved. Neither the code official nor the jurisdiction shall be liable for expense entailed in the removal or replacement of material required to permit inspection. The holder of the permit shall be responsible for the scheduling of such inspections. Plumbing systems regulated by this code shall not be connected to the water, energy fuel supply, or the sewer system until authorized by the code official. Exception: The requirements of this section shall not be considered to prohibit the operation of any plumbing installed to replace existing equipment or fixtures serving an occupied portion of the building in the event a request for inspection of such equipment or fixture has been filed with the code official not more than 72 hours after such replacement work is completed, and before any portion of such plumbing system is concealed by any permanent portion of the building. C06.1.1 Under ground inspection shall be made after trenches or ditches are excavated and bedded, piping installed, and before any backfill is put in place. When excavated soil contains rocks, broken concrete, frozen chunks and other rubble that would damage or break the piping or cause corrosive action, clean backfill shall be on the job site C06.1.2 Rough -in inspection shall be made after the roof, framing, fire blocking, fire stopping, draft stopping and bracing are in place and all sanitary, storm and water distribution piping is rough -in, and prior to the installation of wall or ceiling membranes. C06.1.3 Final inspection shall be made after the building is complete, all plumbing fixtures are in place and properly connected, and the structure is ready for occupancy C06.2 Other inspections. In addition to the called inspections specified above, the code official may make or require other inspections of any plumbing work to ascertain compliance with the provisions of this code and other laws which are enforced. C06.3 Testing. Plumbing work and systems shall be tested as required in Section 312 and in accordance with this section. Tests shall be made by the permit holder and observed by the code official. C06.3.1 Equipment, material and labor for tests. All equipment, material and labor required for testing a plumbing system or part thereof shall be furnished by the permit holder 21 C06.3.2 Reinspection and testing. Where any work or installation does not pass any initial test or inspection, the necessary corrections shall be made to comply with this code The work or installation shall then be resubmitted to the code official for inspection and testing. C06.4 Inspection requests. It shall be the duty of the person doing the work authorized by a permit to notify the code official that such work is ready for inspection. The code official may require that every request for inspection be filed at least one working day before such inspection is desired. Such request may be in writing or by telephone, at the option of the code official. The person doing the work authorized by the permit shall make sure that the work will stand tests prescribed elsewhere in this code, before giving the above notification. It shall be the duty of the person requesting inspections required by this code to provide access to and means for proper inspection of such work. When the work is within a residence where access is dependent upon the occupant being home, it shall be the duty of the person doing the work to make arrangements for inspections. Failure to make arrangements within a timely manner or the inability for the inspector to do the inspections at the arranged times will result in reinspection fees being assessed to the person doing the work. Exception: If the reinspection fee was for a "Final Inspection" for a residence where access is dependent upon the occupant, after the fee has been paid by the person doing the work additional arrangements for the final inspection and penalties for not receiving such inspection shall fall on the occupant. This shall not relieve the person doing the work from having to correct improper work and such accompanying penalties should the work fail reinspection. C06.5 Inspection card. Work which requires an inspection card as described in the Building Code shall not be commenced until the permit holder or an agent of the permit holder shall have posted or otherwise made available an inspection record card such as to allow the code official to convemently make the required entries thereon regarding inspection of the work. This card shall be maintained available by the permit holder until final approval has been granted by the code official. C06.6 Reinspections. A reinspection fee may be assessed for each inspection or reinspection when such portion of work for which inspection is called is not complete or when corrections called for are not made. This section is not to be interpreted as requiring reinspection fees the first time ajob is rejected for failure to comply with the requirements of this code, but as controlling the practice of calling for inspections before the job is ready for such inspection or reinspection. 22 Remspection fees may be assessed when the inspection record card is not posted or otherwise available on the work site, the approved plans are not readily available to the inspector, for failure to provide access on the date for which inspection is requested, or for deviating from plans requiring the approval of the code official. To obtain a reinspection, the applicant shall file an application therefor in writing on a form furnished for that purpose and pay the reinspection fee in accordance with Table C05.2 or as set forth in the fee schedule adopted by the jurisdiction. In instances where reinspection fees have been assessed, no additional inspection of the work will be performed until the required fees have been paid. SECTION C07 - CONNECTION APPROVAL C07.1 Energy connections. No person shall make connections from a source of energy or fuel to any plumbing system or equipment regulated by this code and for which a permit is required until approved by the code official. C07.2 Other connections. No person shall make connection from any water - supply line nor shall connect to any sewer system regulated by this code and for which a permit is required until approved by the code official. C07.3 Temporary connections. The code official shall have the authority to authorize the temporary connection of the building or system to the utility source for the purpose of testing plumbing systems or for use under a temporary certificate of occupancy Chapter D BUSINESS REGISTRATION SECTION DO1 - REGISTRATION DO1 1 General. Any firm, business or organization conducting any work related to this code shall have on file in the Department of Development office a valid Business Registration signed by an official of the business hereafter to be known as Registered Official. Such Registered Official shall hold a valid State of Texas Master Plumber License or Texas Board of Irrigator License when required by the State of Texas and this code. Such Plumbing Business Registration shall be renewed annually effective January 1 of each year The fees for the initial registration and the renewal shall be as specified in Table DO 1 Exception Based upon staffing and work loads, the code official may adjust the renewal dates of existing registrations to be equally distributed throughout the year as long as the fees are appropriately prorated. 23 The holder of a Business Registration who fails to pay the annual fee due for such license within thirty (30) days of the expiration date shall also be required to pay a late fee as specified in Table DO 1 D01.2 Restrictions of Registration. Registered Officials shall not be simultaneously employed by, or work for more than one business for the purpose of obtaining permits under this code or for the purpose of doing or supervising work that can only be done by authority of a permit obtained under the provisions of this code Only one registered official for each business registration will be recognized for the purpose of obtaining permits. The registered official shall keep the Department of Development notified of any change in his/her employment. D01.3 Identification. Vehicles used commercially by the Registered Business shall be properly identified with the registered business name and State of Texas Master Plumber's License number or Texas Board of Irrigator's License number, when such license is required for a Plumbing Business Registration. This identification shall be affixed or painted on both sides of the vehicle so as to be in full view at all times and in letters not less than two and one -half inches high. Table D01.1 Business Registration First year or portion thereof* $10000 Yearly renewal $ 50 00 Late fee $ 25 00 *Annual fee is due in full on the first day of January each year Fees will not be pro rated for registration taken out during the year (Renewal dates may be adjusted by the code official to equally distribute the workload throughout the year ) SECTION D02 - REGISTRATION SUSPENDED, REPEALED OR REVOKED D02.1 General. A business registration or permit may be suspended, repealed or revoked by the code official by reason of the occurrence of one or more of the following: 1 Adjudication of insanity; 2 Fraud or misrepresentation in obtaining a registration or permit; 3 Violation of a provision of this ordinance, the Mechanical, Electrical or Building 24 Codes or any other regulatory ordinances of the City applicable to plumbing work; 4 Conviction of defrauding a person for whom he has rendered or contracted to render service, 5 Failure to obtain a permit or the attempted assignment of a permit for others, 6 Failure to pay fees or the voluntary or involuntary filing of bankruptcy proceedings by or against the firm, partnership, association, or corporation with a business registration with the City; 7 The sending of six (6) notifications within a six (6) month period that the registered business is in violation of this code; and, 8 When a state license is suspended for any reason. D02.2 Work suspension. Upon suspension or revocation of said business registration, same shall be null and void and no work thereafter may be performed thereunder D02.3 Board affirmation. Upon appeal to the Board, the Board may affirm, revise or modify such suspension or revocation. 25 (b) The 1997 International Plumbing Code is hereby amended by revising the Table of Contents and Chapter 2 through Appendix G as follows TABLE OF CONTENTS *Table of Contents. Chapter 7. Section 714 changed to read ase follows. Section 714 Engineered Gemputefii5 d Drainage Design 59 SECTION 202 *Section 202, the definition of "Code Offlicial " is changed and new definitions are added to read as follows. BUILDING CODE. Building Code shall mean the Building Code as adopted by this jurisdiction. CODE OFFICIAL. The officer or other designated authority charged with the administration and enforcement of this code, or a duly authorized representative. For the purpose of this code. the Code Official shall be the Build= Official and his regularly authorized de,.pjU shall be the Chief Plumbing Inspector. ELECTRICAL CODE. _Electrical Code shall mean the National Electrical Code as adopted by this jurisdiction. For the purpose of this code all references to NFPA 70 shall be assumed to mean the Electrical Code as defined herein. FIRE PREVENTION CODE (FIRE CODE). Fire Prevention Code shall mean the Fire Code as adopted by this jurisdiction. MECHANICAL CODE. Mechanical Code shall mean the Mechanical Code as adopted by jurisdiction. PLUMBING CODE. Plumbing Code shall mean this code as adopted by this jurisdiction SECTION 301 *Section 301.7, added to read as follows. 301.7 Location. Except as otherwise provided in this Code or other applicable ordinances, no plumbing system, drainage system, building sewer, private sewage disposal system or parts thereof, shall be located in any lot other than the lot which is the site of the building, structure, or premises served by such facilities. ►P No subdivision, sale, or transfer of ownership of existing property shall be made in such manner that the area, clearance, and access requirements of this Code are decreased. SECTION 303 *Section 303.2. changed to read as follows. 303.2 Installation of materials. All materials used shall be installed in strict accordance with the standards under which the materials are accepted and approved. In the absence of such installation procedures, the manufacturer's installation instructions shall be followed. Where the requirement of referenced standards or manufacturer's installation instructions de not eenfefm te n}intmuffi conflict with the provisions of this code, the provisions of this code shall apply unless in the opinion of the Code Official the conditions of listing or the manufacturer's installation instructions when taken as a whole provide a higher level of protection. SECTION 305 *Section 305.6.1. changed to read as follows. 305.6.1 Sewer depth. Butldfng sewefs that eenneet private e disposal shall v L J ( ) LJY r^ septie 4u1u1 evlulcc[1vlI- Building sewers shall be a minimum of 12 inches (304 mm) below grade. *Section 305.9. changed to read as- follows. 305.9 Protection of components of plumbing system. Components of a plumbing system installed within 3 feet along alleyways, driveways, parking garages or other locations in a manner in which they would be exposed to damage shall be recessed into the wall or otherwise protected in an approved manner SECTION 306 *Section 306.3, change to read ase follows. 306.3 Backfilling. Loose earth, free from rocks, broken concrete, frozen chunks and other rubble, shall be placed in the trench in 12 -inch (304 mm) layers and tamped in place. The backfill under and beside (remainder of section unchanged) 27 *Section 308.6. delete. *Section 310.4. delete. SECTION 308 SECTION 310 SECTION 312 *Section 312.5, changed to read ase follows. 312.5 Water supply system test. Upon completion of a section of or the entire water supply system, the system, or portion completed, shall be tested and proved tight under a water pressure not less than the working pressure of the system, or, , by an air test of not less than 50 psi (344 kPa) The water utilized for tests shall be obtained from a potable source of supply The required tests shall be performed in accordance with this section and Section 107 *Section 312.9, changed to read ase ollows. 312.9 Inspection and testing of backflow prevention assemblies. Inspections shall be made of all backflow prevention assemblies to determine whether they are operable. Reduced pressure principle backflow preventer assemblies, double check -valve assemblies, double - detector check -valve assemblies and pressure vacuum breaker assemblies shall be tested. Testing shall be done in accordance with applicable local provisions. In the absence of local provisions, the owner is responsible to ensure that testing is done in accordance with the following provisions. 1 The frequency of testing shall be determined in accordance with the manufacturer's installation instructions. 2. Where the manufacturer of the assembly does not specify the frequency of testing, the assembly shall be tested at least annually 3 The testing procedure shall be performed in accordance with one of the following standards (Remainder of section unchanged) SECTION 401 *Section 401.4. added to read ase ollows. ►: 401.4 Conflict with other codes. Chapter 4 is intended to provide enforceable guidelines for the plumbing designer /installer. Should there be any conflict between this section and the Building Code, the Building Code shall take precedence. SECTION 403 *Section 403.1. changed to read as follows. 403.1 Minimum number of fixtures. Plumbing fixtures shall be provided for the type of occupancy and in the minimum number as required by Chapter 29 of the Building Code. As a recommended but not required alternate to the minimum number of plumbing fixtures see ShE) m Table 403 1 of this code or Appendix Chapter 29 of the Building Code. dete,.,.,.,,noa in aeeer-daiiee with the i uild iin eerie_ *Section 403.2. delete. *Section 403.4. delete. *Section 403.5. delete. *Section 403.6. delete. SECTION 404 *Section 404.3.1.2. add a second paragraph to read as follows. Flush controls shall be hand operated or automatic. Hand operated controls for flushometers shall be mounted 44 in (1120 mm) maximum above the floor on the wide side of the toilet. SECTION 405 *Section 405.3.1. change to read as follows. 405.3 1 Water closets, lavatories and bidets. A water closet, lavatory or bidet shall not be set closer than 15 inches (381 mm) from its center to any side wall, partition, vanity or other obstruction, or closer than 30 inches (762 mm) center -to- center between toilets or adjacent fixtures. There shall be at least 44 24 inches (4Sq 609 mm) clearance in front of the water closet 29 or bidet to any wall, fixture or door Water closet compartments shall not be less than 30 inches (762 mm) wide and 60 inches (1524 mm) deep There shall beat least 4$ 24 inches (45q 609 mm) clearance in front of a lavatory to any wall, fixture or door - I --1I *Section 405.6. delete. SECTION 409 *Section 409.2, change to read as follows. 409.2 Water connection. The water supply to a commercial dishwashing machine shall be protected against backflow by an air gap or backflow preventer in accordance with Section 608 SECTION 410 *Section 410.1. change to read as follows. 410.1 Approval. Drinking fountains shall conform to ASME A112.19 1, A112.19.2 or A112.19.9, and water coolers shall conform to ARI 1010 Where water is ser:ved Exception. A drinking fountain need not be provided in a drinking _or dining establishment. SECTION 412 *Section 412.4. changed to read as follows. 412.4 Required location and construction. Floor drains shall be installed in the following areas: 1 In public coin- operated laundries and in the central washing facilities of multiple family dwellings, the rooms containing the automatic clothes washers shall be provided with floor drains located to readily drain the entire floor area. Sueh drains shall ha-- e rnimmum euti t eress seette e fii t less than 3 inches (76 ,....ra) ,... diameter-. 2. Toilet rooms containing two 2) or more water closets or a combination of one (1) water closet and one (1) unnal, except in a dwelling unit. The floor shall slope toward the floor drains. 3. Commercial kitchens. (In lieu of floor drains in commercial kitchens, the code official may accept floor sinks.) 30 SECTION 413 *Section 413.4, changed to read as follows. 413 4 Water supply required. All food waste grinders shall be provided with a supply of cold water The water supply shall be protected against backflow by an air gap or with the installation of a backflow preventer in accordance with Section 608. SECTION 417 *Section 417.5, changed to read ase ollows. 417.5 Shower floors or receptors. Floor surfaces shall be constructed of impervious, noncorrosive, nonabsorbent and waterproof materials. Thresholds shall be a minimum of 2 inches (51 mm) and a maximum of 9 inches (229 mm), measured from top of the drain to top of threshold or dam. Thresholds shall be of sufficient width to accommodate a minimum twenty -two 22) inch (559 mm ) door. Exception: Showers designed to comply with CABO /ANSI Al 17.1, as adopted. *Section 417.5.2. changed to read as, ollows. 417.5.2 Pans. Floors under shower compartments, except where prefabricated receptors have been provided, shall be lined and made water tight by the provision of suitable shower pans of approved material. Floors under pan liners shall be sloped 1/4 inch per foot to the shower drain. Such pans shall turn up on all sides at least 2 inches (51 mm) above the finished threshold level and shall extend outward over the threshold and fastened to the outside of the threshold jamb Pans shall be securely fastened to the waste outlet at the seepage entrance, making a water -tight point between the pan and the outlet. Exception: Floor surfaces under shower heads provided for rinsing laid directly on the ground are not required to comply with this section. *Section 417.7. added to read ase follows. 417.7 Test for shower receptors. Shower receptors shall be tested for water tightness by filling with water to the level of the rough threshold. The drain shall be peed in a manner so that both sides of pans shall be subjected to the test at the point where it is clamped to the drain 31 *Section 419.4, delete. SECTION 419 SECTION 501 *Section 501.2. changed to read as follows. 501.2 Water heater as space heater A weAer- heete. used as aA of a heeA u rui � vi u .�f�'iuv� e€- f7-PC+ The potability of the water shall be maintained throughout the system. uses. *Section 501.4, add a second paragraph to read as- follows. Water heaters shall not be installed in the attics of single - family, duplex or multi - family SECTION 502 *Section 502.5.1, added to read as- follows. 502.5.1 Electrical requirements. A lighting fixture controlled by a switch located at the required passageway opening and a receptacle outlet shall be provided at or near the equipment location in accordance with the electrical code. *Section 502.6, added to read as follows. 502.6 Water heaters above ground or floor. When the attic roof, mezzanine or platform in which a water heater that exceeds twenty (20) gallons is installed is more than eight (8), 8 feet (2438 mm) above the ground or floor level, it shall be made accessible by a stairway or permanent ladder fastened to the building_ SECTION 503 *Section 503.1. changed to read as follows. 503.1 Cold water line valve. The cold water branch line from the main water supply line to each hot water storage tank or water heater shall be provided with a valve as specified in Section 606.1. aeeessible en the same fleer-, ste -- e t.,,,1� a4e - heate The vnlving shall net in+ f a + f the �a n_o p N�avu vi cix� �viQ 32 SECTION 504 *Section 504.7.1. changed to read as follows. 504.7.1 Discharge. The discharge from the relief valve shall be piped full -size separately to the outside of the building with the end of the pipe not more than two (2 ) feet (610 mm) nor less than six 6) inches (152 mm) above the ground or the floor level of the area receiving the discharge and pointing downward, or to an indirect waste receptor located inside the building. hi afeas subjeet te ffeezing, the relief valve shall disehafge t4eugh an air- gap ifite an indir-eet wast-e . The discharge shall be installed in a manner that does not cause personal injury or property damage and that is readily observable by the building occupants. The discharge from a relief valve shall not be trapped. The diameter of the discharge piping shall not be less than the diameter of the relief valve outlet. The discharge pipe shall be installed so as to drain by gravity flow and shall tefmii:14e The end of the discharge pipe shall not be threaded. *Section 504.7.2. delete. *Section 504.8.1. changed to read as follows. 504.8.1 Pan size and drain. The pan shall not be less than 1 %z inches (38 mm) deep and shall be of sufficient size and shape to receive all dripping or condensate from the tank or water heater The pan shall be drained by an indirect waste pipe having a minimum diameter of 4.3/4 inch (25 19 mm) or the outlet diameter of the required relief valve, whichever is larger *Section 505. 1, delete. SECTION 505 SECTION 506 *Section 506, added to read as- follows. 506. Combustion air and ventilation. Combustion air and ventilation shall be provided as required in Chapter 7, Chapter 8 and Section 1002 of the Mechanical Code as adopted. 33 SECTION 604 *Section 604.4.1. added to read as- follows. 604.4.1 State maximum flow rate. Where the State mandated maximum flow rate is more restrictive than those of this section, the State flow rate shall take precedence. SECTION 605 *Section 605.4, changed to read as follows. 605.4 Water service pipe. Water service pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table 605 4 All water service pipe or tubing, installed underground and outside of the structure, shall have a minimum working pressure rating of 160 psi (1100 kPa) at 73 4 °F (23 °C) Where the water pressure exceeds 160 psi (1100 kPa), piping material shall have a minimum rated working pressure equal to the highest available pressure. Water service piping shall terminate outside of the building unless of material conforming to Section 605.5. Plast:e .. e +e. se to piping shall ten:ntnate within 5 feet (, 524 fliffl) inside the All ductile iron water pipe shall be cement mortar lined in accordance with AWWA C104 *Tables 605.4 and 605.5 delete "Polvbu lene (PB) plastic-pipe and tubing" SECTION 606 *Section 606.1. delete items #4. 5 and 6 *Section 606.1. change item #8 to read ase follows. 8 On the water supply pipe to every water heater or hot water storage tank. The valve shall be accessible on the same floor, located near the equipment and only serving the hot water storafze tank or water heater. The valvmg shall not interfere or cause a disruption of the cold water supply to the remainder of the cold water system 34 *Section 606 2, items #1 and 2_ changed to read as follows. On the fixture supply to each plumbing fixture_ aid multiple family r-estdeirtfal- eeetipunetes, and ether- t han: iii individ , guestfeems that afe pf:evided with unit shuteff valves in hetels, ffietels, bear-ding houses and similaf eeettpaneies. 2. On the water supply pipe to each sillcock when subject to freezing. SECTION 607 *Section 607.2. 607.2.1 and 607.2.2, delete. *Section 607.4. change to read as- follows. 607.4 Hot water supply to fixtures. The hot water supply to any fixture water shall be installed on the left side of the fixture SECTION 608 *Section 608.1. changed to read as, ollows. 608.1 General. A potable water supply system shall be designed, installed and maintained in such a manner so as to prevent contamination from nonpotable liquids, solids or gases being introduced into the potable water supply through cross - connections or any other piping connections to the system. Back flow preventer applications shall conform to Uplicable local regulations. In the absence of other local regulations backflow preventer applications shall conform to Table 608 1 *Section 608.17, changed to read ase ollows. 608.17 Protection of individual water supplies. An individual water supply shall be located and constructed so as to be safeguarded against contamination in accordance with applicable local regulations. In the absence of other local regulations installation shall be in accordance with Sections 608 17 1 through 608 17 8 35 *Section 609.2. delete. SECTION 609 SECTION 702 *Section 702.3. changed to read as- follows. 702.3 Building sewer pipe. Building sewer pipe shall conform to one of the standards listed in Table 702.2 702.3 SECTION 708 *Section 708.3.4, changed to read ase ollows. 708.3.4 Upper terminal Base of staek. Each horizontal drain shall be provided with a cleanout at its upper terminal A eleanout shall be " idt-1 M. 0he base of eaeh waste er. seil s , Exception: Cleanouts may be omitted on a horizontal drain less than five (5) feet (1524 mm) in length unless such line is serving sinks or urinals *Section 708.8, changed to read ase ollows. 708.8 Pipes 8 inches (203 mm) and larger nominal size. In lieu of cleanouts as specified in Section 708.3.2, for Eef building sewers 8 inches (203 mm) and larger, manholes &hag may be pr-e:vided installed and located at each change in direction and at intervals of not more than 400 feet (121 9 m) Manholes and manhole covers shall be of an approved type. TABLE 710.1 *Table 710.1(1). change-footnote "a" to read as- follows. 'The minimum size of any building drain serving a water closet shall be 3 inches. Not more than three (3) water closets shall be permitted on any 3 inch diameter horizontal drain or sewer. *Table 710.1(2). change footnote "a " to read as- follows. a Does not include branches of the building drain. Refer to Table 710 1(1) Not more than three (3) water closets shall be permitted on any 3 inch diameter horizontal branch or dram 36 SECTION 712 *Section 712.5, added to read ase follows. 712.5 Dual Pump System. All sumps shall be automatically discharged and, when in any "public use" occupancy where the sump serves more than 10 fixture units, shall be provided with dual pumps or effectors arranged to function independently in case of overload or mechanical failure. (For storm drainage, see Section 1111.) SECTION 714 *Section 714.1. changed to read as follows. ENGINEERED COMPUTERIZED DRAINAGE DESIGN 714 1 Design of drainage system. The sizing requirements for plumbing drainage systems shall be determined by approved design methods. SECTION 802 *Section 802.1.1. delete the exception. *Section 802.4. change to read as follows. 802.4 Standpipes. Standpipes shall be individually trapped. Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1066 mm) above the trap Access shall be provided to all standpipe traps and drains for roddmg. No standpipe shall be installed below the floor. SECTION 805 *Section 805, added to read as follows. CONDENSATE WASTE 805.1 When the condensate waste from air conditioning coils discharges by direct connection to a lavatory tailpiece or to an approved accessible inlet on a bathtub overflow, the connection shall be located in the area controlled by the same person controlling the air - conditioned space. 37 SECTION 904 *Section 904.1. changed to read ase follows. 904.1 Roof extension. All open vent pipes that extend through a roof shall be terminated at least six 6) inches (152 mm) above the roof, except that where a roof is to be used for any purpose other than weather protection, the vent extensions shall be run at least 7 feet (2134 mm) above the roof. *Section 904.5. changed to read as follows. 904.5 Location of vent terminal. An open vent terminal from a drainage system shall not be located directly beneath any door, openable window, or other air intake opening of the building or of an adjacent building, and any such vent terminal shall not be within 10 feet (3048 mm) horizontally of such an opening unless it is at least -2 3 feet (619 915 mm) above the top of such opening. SECTION 912 *Section 912.1. changed to read as follows. 912.1 Type of fixture. A combination drain and vent system shall not serve fixtures other than floor drains, standpipes, sinks aiid lavatefies indirect waste receptors. *Section 912.2. changed to read as follows. 912.2 Installation. The only vertical pipe of a combination drain and vent system shall be the connection between the fixture drain of a sink, standpipe, and the horizontal combination drain and vent pipe. The maximum vertical distance shall be 8 feet (2438 mm) SECTION 916 *Section 916.1. changed to read as follows. 916.1 Size of stack vents and vent stacks. The minimum required diameter of stack vents and vent stacks shall be determined from the developed length and the total of drainage fixture units connected thereto in accordance with Table 916 1, but in no case shall the diameter be less than one -half the diameter of the drain served or less than 1 1/4 inches (32 mm) In addition, the drainage piping of each building shall be vented by means of one or more vent pipes the aureizate cross - sectional area shall not be less than that of the largest required building sewer m accordance with Table 916.1. *Section 1002.10. delete. SECTION 1002 SECTION 1003 *Section 1003.1. changed to read as follows. 1003.1 Interceptors required. Interceptors for oil, grease, sand and other substances harmful or hazardous to the building drainage system, the public sewer or sewage treatment plant, or processes shall be provided as required by gpplicable local provisions. In the absence of local provisions, they shall be provided as required in this chapter Where food waste grinders connect to grease interceptors, the grease interceptor shall be sized and rated for the discharge of the food waste grinder SECTION 1106 *Section 1106.1. changed to read ase follows. 1106.1 General. The size of the vertical conductors and leader, building storm drains, building storm sewers, and any horizontal branches of such drains or sewers shall be based on five 5 inches per hour the 10 rainfall rate ,,,a,,.., * °a in F,,..,...., 1106.1 ,.*her- r-ainfall SECTION 1107 *Section 1107.3. changed to read as follows. 1107.3 Sizing of secondary drains. Secondary (emergency) roof drain system shall be sized in accordance with Section 1106 based on the rainfall rate for which the primary system is sized but with the sizing adjusted by dividing the values horizontally projected roof area in Tables 11 n6 2, 1106.3 aii 11 by two The minimum cross - sectional area of an overflow scupper shall be three times the cross - sectional area of the primary roof drain and the scupper shall have a minimum opening dimension of 4 inches (102 mm) The flow through the primary system shall not be considered when sizing the secondary roof drain system. SECTION 1201 *Section 1201.2. changed to read as follows. 1201.2 Fuel piping systems. All fuel piping systems shall be sized, installed, tested and placed in operation in accordance with the requirements of the Mechanical Code T;ial 39 fee a'°'w ' Ged —, Chapter 13, Fuel gas Piping. -e+- For reference only, an unamended version of this Chapter 13 is reprinted as Appendix G of this code. *Chapter 13. deleted. CHAPTER 13 40 I--- SECTION 3 That Section 26 -3 of the Code of the City of Fort Worth (1986), as amended, is hereby amended to read as follows Sec. 26 -3. Effect of Conflict with Other Ordinances. This chapter shall be cumulative of all provisions of ordinances and of the Code of the City of Fort Worth, Texas (1986), as amended, except where the provisions of this chapter are in direct conflict with the provisions of such ordinances and such Code, in which event conflicting provisions of such ordinances and such Code are hereby repealed. SECTION 4 It is hereby declared to be the intention of the City Council that the sections, paragraphs, sentences, clauses and phrases of this ordinance are severable, and if any phrase, clause, sentence, paragraph or section of this ordinance shall be declared void, ineffective or unconstitutional by the valid judgment or decree of any court of competent junsdiction, such voidness, ineffectiveness or unconstitutionality shall not affect any of the remaining phrases, clauses, sentences, paragraphs and sections of this ordinance, since the same would have been enacted by the City Council without the incorporation in this ordinance of any such void, ineffective or unconstitutional phrase, clause, sentence, paragraph or section. SECTION 5 All rights and remedies of the City of Fort Worth, Texas are expressly saved as to any and all violations of the provisions of the existing Plumbing Code, or any other ordinances affecting plumbing which have accrued at the time of the effective date of this ordinance; and, as to such accrued violations and all pending litigation, both civil and criminal, whether pending in court or not, under such ordinances, same shall not be affected by this ordinance but may be prosecuted until final disposition by the courts. SECTION 6 The Department of Development of the City of Fort Worth, Texas, is hereby authorized to publish this ordinance in pamphlet form for general distribution among the public, and the operative provisions of this ordinance as so published shall be admissible in evidence in all courts without further proof than the production thereof, as provided in Chapter XXV, Section 3, of the Charter of the City of Fort Worth, Texas. SECTION 7 A copy of the 1997 International Plumbing Code, together with the local amendments contained in this ordinance, shall be filed in the office of the City Secretary for permanent record and inspection. 41 SECTION 8 Any person, firm or corporation violating any of the provisions of this ordinance shall be deemed guilty of a misdemeanor and upon conviction thereof shall be punishable by a fine not to exceed Two Thousand Dollars ($2,000 00) for all violations involving fire safety, or public health and sanitation and shall be fined not more than Five Hundred Dollars ($500 00) for all other violations of this ordinance. Each day or any portion thereof during which any violation of this ordinance occurs or continues shall be deemed a separate offense and upon conviction thereof shall be punishable as herein provided. SECTION 9 The City Secretary of the City of Fort Worth, Texas is hereby directed to publish the caption and Sections 1, 7, 8, 9 and 10 of this ordinance for two (2) days in the official newspaper of the City of Fort Worth, Texas, as authorized by Section 2, Chapter XXV of the Charter of the City of Fort Worth, Texas and by Section 52.013 (a) of the Texas Local Government Code. SECTION 10 This ordinance shall be in full force and effect thirty (30) days after its passage and publication as required by law, and it is so ordained. APPROVED AS TO FORM AND LEGALITY City At orney ADOPTED //'�� EFFECTIVE 42 i i E)kvf%V,+l"H go international if +G sA u mbing 1997 0 �Ne o O � uiiu mNa CODE COUNCIL'" 4ort�p614CE QF S! UNIFOYM = e -m o 'rte CODE e° s n b,1M� 1122 4 ^a` M40 .�. N.1 First Printing Publication Date: February 1997 COPYRIGHT © 1997 by INTERNATIONAL CODE COUNCIL, INC. and BUILDING OFFICIALS AND CODE ADMINISTRATORS INTERNATIONAL, INC. 4051 West Flossmoor Road Country Club Hills, Illinois 60478 -5795 (708) 799 -2300 and INTERNATIONAL CONFERENCE OF BUILDING OFFICIALS 5360 Workman Mill Road Whittier, California 90601 -2298 (562) 699 -0541 and SOUTHERN BUILDING CODE CONGRESS INTERNATIONAL, INC. 900 Montclair Road Birmingham, Alabama 35213 -1206 (205) 591 -1853 PRINTED IN THE U.S.A. PREFACE Introduction Internationally, code officials recognize the need for a modern, up -to -date plumbing code addressing the design and installation of plumbing systems through requirements emphasizing performance. The International Plumbing Code' is designed to meet these needs through model code regulations that safeguard the public health and safety in all communities, large and small. This comprehensive plumbing code, which incorporates approved code changes from the last two code development cycles, establishes minimum regulations for plumbing systems using prescriptive and performance - related provisions. It is founded on broad -based principles that make possible the use of new materials and new plumbing designs. Additionally, the International Plumbing Code is designed to be compatible with the BOCA National Codes published by Building Officials and Code Administrators International (BOCA), the Standard Codes published by the Southern Building Code Congress International ( SBCCI), the Uniform Codes published by the International Conference of Building Officials (ICBO), and, eventually, all the International Codes published by the International Code Council. The International Plumbing Code provides many benefits, among which is the model code development process that offers an international forum for plumbing professionals to discuss performance and prescriptive code requirements. This forum provides an excellent arena to debate proposed revisions. This model code also encourages international consistency in the application of provisions. Development The first draft of the International Plumbing Code was prepared in 1994 by a development committee appointed by and consisting of representatives of BOCA, ICBO and SBCCI. The intent was to draft a comprehensive set of regulations for plumbing systems consistent with and inclusive of the scope and content of the existing model plumbing codes that incorporates the common plumbing code format established by the Council of American Building Officials. This format establishes the title, scope and sequence of the chapters and does not involve the order or content of the provisions within the chapter. Technical content of the latest plumbing codes promulgated by BOCA, ICBO and SBCCI was utilized as the basis for the development of this document. While there were a great many similarities among the three codes, careful consideration was given to identified differences. The development committee followed certain principles as guidance in the resolution of technical differences. The principles were based on the intent to establish provisions consistent with the scope of a plumbing code that adequately protect public health, safety and welfare; provisions that do not unnecessarily increase construction costs; provisions that do not restrict the use of new materials, products or methods of construction; and provisions that do not give preferential treatment to particular types or classes of materials, products or methods of construction. 1 Marginal Markings Solid vertical lines in the margins within the body of the code indicate a change from the requirements of the 1995 edition except where a change was minor. Deletion indicators ( #) are provided in the margin where a paragraph or item listing has been deleted if the deletion resulted in a change of requirements. Adoption The International Plumbing Code is available for adoption and use by jurisdictions internationally Its use within a governmental jurisdiction is intended to be accomplished through adoption by reference in accordance with proceedings establishing the jurisdiction's laws. At the time of adoption, jurisdictions should insert the appropriate information in provisions requiring specific local information, such as the name of the adopting jurisdiction. These locations are shown in bracketed words in small capital letters in the code and in the sample adoption ordinance. The sample adoption ordinance on page v addresses several key elements of a code adoption ordinance, including the information required for insertion into the code text. Maintenance The International Plumbing Code is kept up to date through the review of proposed changes submitted by code enforcement officials, industry representatives, design professionals and other interested parties. Proposed changes are carefully considered through an open code development process in which all interested and affected parties may participate. 1997 INTERNATIONAL PLUMBING CODE For more information regarding the code development ,process, contact BOCA, 4051 West Flossmoor Road, Country. Club Hills, Illinois 60478 -5795, ICBO, 5360 Workman Mill Road, Whittier, California 90601 -2298, or SBCCI, 900 Montclair Road, Birmingham, Alabama 35213 -1206. While the development procedure of the International Plumbing Code assures the highest degree of care, BOCA, ICBO, SBCCI, their members and those participating in the development of this code do not accept any liability resulting from compliance or noncompliance with the provisions given herein, for any restrictions imposed on materials or processes, or for the completeness of the text. BOCA, ICBO and SBCCI do not have power or authority to police or enforce compliance with the contents of this code. Only the governmental body that enacts the code into law has such authority 4 .Y=r Iv 1997 INTERNATIONAL PLUMBING CODE SAMPLE ORDINANCE FOR ADOPTION OF THE INTERNATIONAL PLUMBING CODE ORDINANCE NO An ordinance of the IJURISDICnoNI adopting the 1997 edition of the International Plumbing Code, regulat- ing and controlling the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of plumbing systems in the 1juRISDIC- noNl , providing for the issuance of permits and collection of fees therefore; repealing Ordinance No. of the I.IURISDICnoNI and all other ordinances and parts of the ordinances in conflict therewith. The LGoyERNING BODVI of the tJuRIsDlcnoNl does ordain as follows: Section 1. That certain documents, three (3) copies of which are on file in the office of the IJURISDICTION'S KEEPER of RECORDsI and the jJURISDICnoNI , being marked and designated as International Plumbing Code, including Appendix Chapters (fill in the applicable Appendix Chapters. [See International Plumbing Code Section 101.2, 1997 edition]), as published by the International Code Council be and is hereby adopted as the code of the muRIsDlcnoNi for regulating the design, construction, quality of materials, erection, instal- lation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of plumbing sys- tems in the IJURISDICnoNI and providing for the issuance of permits and collection of fees therefor; and each and all of the regulations, provisions, conditions and terms of such International Plumbing Code, 1997 edi- tion, published by the International Code Council on file in the office of the wuRIsDIcnom are hereby re- ferred to, adopted and made a part hereof as if fully set out in this ordinance. Section 2. The following sections are hereby revised: Section 101.1 Insert: [NAME OF JURISDICTION] Section 106.5.2. Insert: [APPROPRIATE SCHEDULE] Section 106.5.3 Insert: [PERCENTAGES IN TWO LOCATIONS] Section 108.4 Insert: [OFFENSE, DOLLAR AMOUNT, NUMBER OF DAYS] Section 108.5 Insert: [DOLLAR AMOUNT IN Two LOCATIONS] Section 305.6.1. Insert: [NUMBER OF INCHES IN Two LOCATIONS] Section 904 1 Insert: [NUMBER OF INCHES] Chapter 14, Codes. Insert: [NAMES OF CODES IN THREE LOCATIONS] Section 3. That Ordinance No. of IJURISDICTIONI entitled (fill in here the complete title of the present plumbing ordinance or ordinances in effect at the present time so that they will be repealed by defi- nite mention) and all other ordinances or parts of ordinances in conflict herewith are hereby repealed. Section 4. That if any section, subsection, sentence, clause or phrase of this ordinance is, for any reason, held to be unconstitutional, such decision shall not affect the validity of the remaining portions of this ordi- nance. The (GOVERNING BODY- hereby declares that it would have passed this ordinance, and each section, subsection, clause or phrase thereof, irrespective of the fact that any one or more sections, subsections, sen- tences, clauses and phrases be declared unconstitutional. Section 5. That the [JURISDICTION'S KEEPER OF RECORDS- is hereby ordered and directed to cause this ordi- nance to be published. (An additional provision may be required to direct the number of times the ordinance is to be published and to specify that it is to be in a newspaper in general circulation. Posting may also be required.) Section 6. That this ordinance and the rules, regulations, provisions, requirements, orders and matters established and adopted hereby shall take effect and be in full force and effect -TIME PERIOD- from and after the date of its final passage and adoption. 1997 INTERNATIONAL PLUMBING CODE A 1997 INTERNATIONAL PLUMBING CODE TABLE OF CONTENTS CHAPTER 1 ADMINISTRATION ..... . ..... 1 Section 101 General 1 Section 102 Applicability 1 Section 103 Department of Plumbing Inspection 1 Section 104 Duties and Powers of the Code Official 2 Section 105 Approval 2 Section 106 Permits 3 Section 107 Inspections and Testing 5 Section 108 Violations 6 Section 109 Means of Appeal 7 CHAPTER 2 DEFINITIONS .... .9 Section 201 General 9 Section 202 General Definitions 9 CHAPTER 3 GENERAL REGULATIONS . ..... 17 Section 301 General 17 Section 302 Exclusion of Materials Detrimental 31 Section 424 to the Sewer System 17 Section 303 Materials 17 Section 304 Rodentproofing 18 Section 305 Protection of Pipes and Plumbing System Components 18 Section 306 Trenching, Excavation and Backfill 18 Section 307 Structural Safety 19 Section 308 Piping Support 19 Section 309 Floodproofing 20 Section 310 Washroom and Toilet Room Requirements 20 Section 311 Toilet Facilities for Workers 20 Section 312 Tests and Inspections 20 CHAPTER 4 FIXTURES, FAUCETS 40 Section 607 AND FIXTURE FITTINGS .... 23 Section 401 General 23 Section 402 Fixture Materials 23 Section 403 Minimum Plumbing Facilities 23 Section 404 Accessible Plumbing Facilities 25 Section 405 Installation of Fixtures 27 Section 406 Automatic Clothes Washers 28 Section 407 Bathtubs 28 Section 408 Bidets 28 Section 409 Dishwashing Machines 28 Section 410 Drinking Fountains 28 Section 411 Emergency Showers and Eyewash Stations 28 Section 412 Floor Drains 28 Section 413 Food Waste Grinder Units 29 Section 414 Garbage Can Washers 29 Section 415 Laundry Trays 29 Section 416 Lavatories 29 Section 417 Showers 29 Section 418 Sinks 30 Section 419 Urinals 30 Section 420 Water Closets 30 Section 421 Whirlpool Bathtubs 30 1997 INTERNATIONAL PLUMBING CODE Section 422 Health Care Fixtures and Equipment 31 Section 423 Specialty Plumbing Fixtures 31 Section 424 Faucets and Other Fixture Fittings 31 Section 425 Flushing Devices for Water Closets 33 Section 505 and Urinals 32 CHAPTER 5 WATER HEATERS .. . . . .33 Section 501 General 33 Section 502 Installation 33 Section 503 Connections 33 Section 504 Safety Devices 33 Section 505 Insulation 34 CHAPTER 6 WATER SUPPLY AND DISTRIBUTION . ..... .35 Section 601 General 35 Section 602 Water Required 35 Section 603 Water Service 35 Section 604 Design of Building Water 54 Section 711 Distribution System 35 Section 605 Materials, Joints and Connections 37 Section 606 Installation of the Building Water 57 Section 713 Distribution System 40 Section 607 Hot Water Supply System 42 Section 608 Protection of Potable Water Supply 42 Section 609 Health Care Plumbing 46 Section 610 Disinfection of Potable Water System 47 Section 611 Water Treatment Units 47 CHAPTER 7 SANITARY DRAINAGE . .49 Section 701 General 49 Section 702 Materials 49 Section 703 Building Sewer 50 Section 704 Drainage Piping Installation 50 Section 705 Joints 50 Section 706 Connections Between Drainage Piping and Fixtures 53 Section 707 Prohibited Joints and Connections 53 Section 708 Cleanouts 53 Section 709 Fixture Units 54 Section 710 Drainage System Sizing 54 Section 711 Offsets in Drainage Piping in Buildings of Five Stories or More 56 Section 712 Sumps and Ejectors 57 Section 713 Health Care Plumbing 57 Section 714 Computerized Drainage Design 59 Section 715 Backwater Valves 59 CHAPTER 8 INDIRECT /SPECIAL WASTE 61 Section 801 General 61 Section 802 Indirect Wastes 61 Section 803 Special Wastes 61 Section 804 Materials, Joints and Connections 62 vll CHAPTER VENTS Section 901 General Section 902 Materials Section 903 Vent Stacks and Stack Vents Section 904 Vent Terminals Section 905 Vent Connections and Grades Section 906 Fixture Vents Section 907 Individual Vent Section 908 Common Vent Section 909 Wet Venting Section 910 Waste Stack Vent Section 911 Circuit Venting Section 912 Combination Drain and Vent System Section 913 Island Fixture Venting Section 914 Relief Vents — Stacks of More Than Values for Continuous Flow 10 Branch Intervals Section 915 Vents for Stack Offsets Section 916 Vent Pipe Sizing Section 917 Air Admittance Valves Section 918 Engineered Vent Systems 63 63 63 63 63 64 64 64 64 65 65 65 66 66 66 66 67 68 69 CHAPTER 10 TRAPS .. .. 71 Section 1001 General 71 Section 1002 Trap Requirements 71 Section 1003 Interceptors and Separators 71 Section 1004 Materials, Joints and Connections 72 CHAPTER 11 STORM DRAINAGE . 73 Section 1101 General 73 Section 1102 Materials 73 Section 1103 Traps 74 Section 1104 Conductors and Connections 74 Section 1105 Roof Drains 74 Section 1106 Size of Conductors, Leaders and 121 Section G107 Storm Drains 74 Section 1107 Secondary (Emergency) Roof Drains 82 Section 1108 Combined Sanitary and Storm System 82 Section 1109 Values for Continuous Flow 82 Section 1110 Controlled Flow Roof Drain Systems 82 Section 1111 Sumps 82 CHAPTER 12 FUEL PIPING 83 Section 1201 General 83 CHAPTER 13 SPECIAL PIPING AND STORAGE SYSTEMS 85 Section 1301 General 85 Section 1302 Medical Gases 85 Section 1303 Oxygen Systems 85 CHAPTER 14 REFERENCED STANDARDS .. .87 APPENDIX A PLUMBING PERMIT FEE SCHEDULE .. ... .. .95 Permit Issuance 95 Unit Fee Schedule (in addition to Item 1 or 2 above) 95 Other Inspections and Fees 95 APPENDIX B RATES OF RAINFALL FOR VARIOUS CITIES . .... ... .97 APPENDIX C GRAY WATER RECYCLING SYSTEMS . 99 C101 Gray Water Recycling Systems 99 APPENDIX D DEGREE DAY AND DESIGN TEMPERATURES FOR CITIES IN THE UNITED STATES 101 APPENDIX E SIZING OF WATER PIPING APPENDIX G FUEL -GAS PIPING. 123 Section G101 SYSTEM 107 E101 General 107 E102 Information Required 107 E103 Selection of Pipe Size 107 APPENDIX F STRUCTURAL SAFETY 121 F101 General Information 121 APPENDIX G FUEL -GAS PIPING. 123 Section G101 General 123 Section G102 Pipe Sizing 123 Section G103 Piping Materials 131 Section G104 Piping System Installation 133 Section G105 Gas Shutoff Valves 134 Section G106 Two -psi and Higher Gas Piping 134 Section G107 Gas Flow Controls 136 Section G108 Installation Requirements for Undiluted Liquefied Petroleum Gases (Butane and Propane) 137 Section G109 Appliance Connections 138 Section G110 CNG Gas - dispensing Systems 140 Section G111 Supplemental and Standby Gas Supply 140 INDEX ... .. 141 vill 1997 INTERNATIONAL PLUMBING CODE CHAPTER 1 ADMINISTRATION SECTION 101 GENERAL 101.1 Title. These regulations shall be known as the Plumbing Code of [NAME of JURISDIMON1 hereinafter referred to as "this code." 101.2 Scope. The provisions of this code shall apply to the erec- tion, installation, alteration, repairs, relocation, replacement, ' addition to, use or maintenance of plumbing systems within this jurisdiction. Provisions in the appendices shall not apply unless specifi- cally adopted. 1013 Intent. The purpose of this code is to provide minimum standards to safeguard life or limb, health, property and public welfare by regulating and controlling the design, construction, installation, quality of materials, location, operation, and main- tenance or use of plumbing equipment and systems. 101.4 Severability. If any section, subsection, sentence, clause or phrase of this code is for any reason held to be unconstitu- tional, such decision shall not affect the validity of the remain- ing portions of this code. SECTION 102 APPLICABILITY 102.1 General. The provisions of this code shall apply to all matters affecting or relating to structures, as set forth in Section 101. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. 102.2 Existing installations. Plumbing systems lawfully in existence at the time of the adoption of this code shall be per- mitted to have their use and maintenance continued if the use, maintenance or repair is in accordance with the original design and no hazard to life, health or property is created by such plumbing system. 102.3 Maintenance. All plumbing systems, materials and appurtenances, both existing and new, and all parts thereof, shall be maintained in proper operating condition in accord- ance with the original design in a safe and sanitary condition. All devices or safeguards required by this code shall be main- tained in compliance with the code edition under which installed. The owner or the owner's designated agent shall be responsible for maintenance of plumbing systems. To deter- mine compliance with this provision, the code official shall have the authority to require any plumbing system to be rein- spected. 102.4 Additions, alterations or repairs. Additions, alter- ations, renovations or repairs to any plumbing system shall conform to that required for a new plumbing system without requiring the existing plumbing system to comply with all the 1997 INTERNATIONAL PLUMBING CODE requirements of this code. Additions, alterations or repairs shall not cause an existing system to become unsafe, insanitary or overloaded. Minor additions, alterations, renovations and repairs to existing plumbing systems shall be permitted in the same man- ner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved. 102.5 Change in occupancy It shall be unlawful to make any change in the occupancy of any structure that will subject the structure to any special provision of this code without approval of the code official. The code official shall certify that such structure meets the intent of the provisions of law governing building construction for the proposed new occupancy and that such change of occupancy does not result in any hazard to the public health, safety or welfare. 102.6 Historic buildings. The provisions of this code relating to the construction, alteration, repair, enlargement, restoration, relocation or moving of buildings or structures shall not be mandatory for existing buildings or structures identified and classified by the state or local jurisdiction as historic buildings when such buildings or structures are judged by the code offi- cial to be safe and in the public interest of health, safety and welfare regarding any proposed construction, alteration, repair, enlargement, restoration, relocation or moving of buildings. 102.7 Moved buildings. Except as determined by Section 102.2, plumbing systems that are a part of buildings or struc- tures moved into or within the jurisdiction shall comply with the provisions of this code for new installations. 102.8 Referenced codes and standards. The codes and stand- ards referenced in this code shall be those that are listed in Chapter 14 and considered part of the requirements of this code to the prescribed extent of each such reference. Where the re- quirements of reference standards or manufacturer's installa- tion instructions do not conform to minimum provisions of this code, the provisions of this code shall apply 102.9 Requirements not covered by code. Any requirements necessary for the strength, stability or proper operation of an existing or proposed plumbing system, or for the public safety, health and general welfare, not specifically covered by this code shall be determined by the code official. SECTION 103 DEPARTMENT OF PLUMBING INSPECTION 103.1 General. The department of plumbing inspection is hereby created and the executive official in charge thereof shall be known as the code official. 103.2 Appointment. The code official shall be appointed by the chief appointing authority of the jurisdiction, and the code 103.3-105.1 ,,,3! v �uiuN.fxe.k✓..ya .iitwwbaaea i4a .aNOw'+.twss+¢l. -- .Mi+ -•+� � ✓+•t�:rt>.'+` av�1' V .r a�3F'.a "e' _.R+. .+^wwn�rtw.a"i' wW#.:•.rwe!w ..wo..: n�W'.riS.nerfH•st_y °n. .ry .F.*`.!.yb '..+ official shall not be removed from office except for cause and -after full opportunity to be heard on spec and relevant 3 ,&arges'.by and before the appointing authority sr 1033 Deputies. In accordance with the prescribed procedures f th' d'ct' nand with the concurrence of the a intin 1043 Applications and permits. The rode official shall receive applications and issue ;permits for the installation and Y alteration of plumbing, inspect the _premises for which such ,permits have.been issued, and enforce compliance with the pro - visions of this code. ` o isjuns ro ppo g authority, the code official shall have the authority to appoint a ;deputy code official, other related technical officers, inspectors .arid other employees. a 1103.4 Restriction of employees. An official or employee con - nected with the department of plumbing inspection, except one 'whose ,only connection is that °of a member of the board of appeals established under the provisions of Section 109, ,shall - not be engaged in or directly or indirectly connected with the furnishing of .labor,. materials or appliances for the construe- < <tion, alteration or maintenance of a building, or the preparation .of construction documents thereof, unless that person is the ;:owner of the building;:and such officer or employee shall not engage:m anywork that conflicts with off cial.duties or with the ,, 40terests of the department. 30 S Liability. The code official, officer or employee .charged `with:the enforcement of this code, while acting for the jurisdic- *dion, ^'shall not thereby be rendered liable personally, and is °hereby. receved from all personal liability for any .damage accruing to persons or property as a result of any 'act required or ;permitted in the discharge of official duties. 1V 7 Any suit 'instituted against. any officer or employee because of an act performed by that officer or employee in the lawful discharge of duties and under the provisions of this code shall be,defended.by the legal representative of the jurisdiction until the final termination of the proceedings. The code official or any,subordinate shall not be liable for costs in any action, suit or proceeding that is instituted in pursuance of the provisions of this code, and any officer of the department of plumbing inspection, acting in good faith and without malice, shall be .free from liability for acts performed under any of its provi- sions or by reason of any act or- omission in the performance of official duties in connection therewith. SECTION 104 DUTIES AND POWERS OF THE CODE OFFICIAL 104.1 General. The code official shall enforce all of the provi- sions of this code and shall act on any question relative to the installation, alteration, repair, maintenance or operation of all plumbing systems, devices and equipment except as otherwise specifically provided for by statutory requirements or as pro- vided for in Sections 104.2 through 104.8. 104.2 Rule - making authority. The code official shall have authority as necessary in the interest of public health, safety and general welfare to adopt and promulgate rules and regulations to interpret and implement the provisions of this code to secure the intent thereof and to designate requirements applicable because of local climatic or other conditions. Such rules shall not have the effect of waiving structural or fire performance requirements specifically provided for in this code, or of violat- ing accepted engineering practice involving public safety 104A Inspections. The code official shall make all the required inspections, or shall accept reports of inspection by approved agencies: or,individuals.. All ,reports of such inspections shall be in writing and be certified by :a responsible bfficer of such approved agency or, by the responsible individual. The :code ,official is authorized to engage such expert opinion as deemed necessary to report on unusual technical issues that arise, sub- ject to the approval of the appointing authority 104.5 Right of entry. Whenever it s necessary to make an inspection to enforce i orce the provisions of this code, or whenever the code official has reasonable cause to believe that there exists in any building or upon any ,premises any chi ditions or viola- tions of this code that make the'building of premises unsafe, insanitary, dangerous or hazardous, ,the code lofficial .shall have ,the authority to enter the building or premises at all reasonable times to inspect or to perform the duties imposed upon the code official by this code. if such building or•premises is occupied, the code official shall present credentials to the occupant and request entry If such building or premises is unoccupied, the code official shall first ;make a reasonable effort to locate ;the owner or other person having charge or control of the building or premises and request entry If entry is refused, the code offi- cial shall have recourse to every remedy p'r'ovided by law-to secure entry A" When the code official shall have first obtained a proper inspection warrant or other remedy provided by law to secure entry, no owner or occupant or person having charge, care or control of any building or premises shall fail or neglect, after proper request is made as herein provided, to promptly permit entry therein by the code official for the purpose of inspection :and examination pursuant to this code. n_ 104.6 Identification. The code official shall carry proper iden- tification when inspecting structures or premises in the per- formance of duties under this code. 104.7 Notices and orders. The code official shall issue all nec- essary notices or orders to ensure compliance with this code. 104.8 Department records. The code official shall keep offi- cial records of applications received, permits and certificates issued, fees collected, reports of inspections, and notices and orders issued. Such records shall be retained in the official records as long as the building or structure to which such records relate remains in existence unless otherwise provided for by other regulations. SECTION 105 APPROVAL 105.1 Modifications. Whenever there are practical difficulties involved in carrying out the provisions of this code, the code official shall have the authority to-grant modifications for-indi- vidual cases, provided the code official shall first find that spe- cial individual reason makes the strict letter of this code impractical and the modification is in conformity with the 19971NTERNATIONAL PLUMBING CODE r .a intent and purpose of this code and that such modification does not lessen health, life and fire safety requirements. The details of action granting modifications shall be recorded and entered in the files of the plumbing inspection department. 105.2 Alternative materials, methods and equipment. The provisions of this code are not intended to prevent the installa- tion of any material or to prohibit any method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material or method of construction shall be approved where the code offi- cial finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the mate- rial, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety 105.3 Required testing. Whenever there is insufficient evi- dence of compliance with the provisions of this code, or evi- dence that a material or method does not conform to the requirements of this code, or in order to substantiate claims for alternate materials or methods, the code official shall have the authority to require tests as evidence of compliance to be made at no expense to the jurisdiction. 105.3.1 Test methods. Test methods shall be as specified in this code or by other recognized test standards. In the absence of recognized and accepted test methods, the code official shall approve the testing procedures. 105.3.2 Testing agency. All tests shall be performed by an approved agency 1053.3 Test reports. Reports of tests shall be retained by the code official for the period required for retention of public records. 105.4 Alternative engineered design. The design, documen- tation, inspection, testing and approval of an alternative engi- neered design plumbing system shall comply with Sections 105 4 1 through 105 4.6. 105.4.1 Design criteria. An alternative engineered design shall conform to the intent of the provisions of this code and shall provide an equivalent level of quality, strength, effec- tiveness, fire resistance, durability and safety Material, equipment or components shall be designed and installed in accordance with the manufacturer's installation instruc- tions. 105.4.2 Submittal. The registered design professional shall indicate on the permit application that the plumbing system is an alternative engineered design. The permit and perma- nent permit records shall indicate that an alternative engi- neered design was part of the approved installation. 105.4.3 Technical data. The registered design professional shall submit sufficient technical data to substantiate the pro- posed alternative engineered design and to prove that the performance meets the intent of this code. 105.4.4 Construction documents. The registered design professional shall submit to the code official two complete sets of signed and sealed construction documents for the alternative engineered design. The construction documents 105.2-106.3.1 shall include floor plans and a riser diagram of the work. Where appropriate, the construction documents shall indi- cate the direction of flow, all pipe sizes, grade of horizontal piping, loading, and location of fixtures and appliances. 105.4.5 Design approval. Where the code official deter- mines that the alternative engineered design conforms to the intent of this code, the plumbing system shall be approved. If the alternative engineered design is not approved, the code official shall notify the registered design professional in writing, stating the reasons therefor. 105.4.6 Inspection and testing. The alternative engineered design shall be tested and inspected in accordance with the requirements of Sections 107 and 312. 105.5 Material and equipment reuse. Materials, equipment and devices shall not be reused unless such elements have been reconditioned, tested, placed in good and proper working condition, and approved. SECTION 106 PERMITS 106.1 When required. Any owner, authorized agent or con- tractor who desires to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any plumbing system, the installation of which is regu- lated by this code, or to cause any such work to be done, shall first make application to the code official and obtain the required permit for the work. 106.2 Exempt work. The following work shall be exempt from the requirement for a permit: 1. The stopping of leaks in drains, water, soil, waste or vent pipe, provided, however, that if any concealed trap, drain- pipe, water, soil, waste or vent pipe becomes defective and it becomes necessary to remove and replace the same with new material, such work shall be considered as new work and a permit shall be obtained and inspection made as pro- vided in this code. 2. The clearing of stoppages or the repairing of leaks in pipes, valves or fixtures, and the removal and reinstalla- tion of water closets, provided such repairs do not involve or require the replacement or rearrangement of valves, pipes or fixtures. Exemption from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. 1063 Application for permit. Each application for a permit, with the required fee, shall be filed with the code official on a form furnished for that purpose and shall contain a general description of the proposed work and its location. The applica- tion shall be signed by the owner or an authorized agent. The permit application shall indicate the proposed occupancy of all parts of the building and of that portion of the site or lot, if any, not covered by the building or structure and shall contain such other information required by the code official. 106.3.1 Construction documents. Construction docu- ments, engineering calculations, diagrams and other such 1997 INTERNATIONAL PLUMBING CODE 3 106A — 106.6.3 p^N• Ma.M�.u!.•. .iF4R•M.+.uvlw�.iuK.w..� __ ._�frA +�M1.W. n9..a. � m.ywer'x data shall be submitted in two or more .sets with each applica- - tion for a ;permit. The code official shall require construction ,,,,documents, computations and specifications to be prepared :and designed by a registered design professional when p required by state law Construction documents shall be drawn to scale and shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in ,.detail that the work conforms to the provisions of this code. Construction documents for buildings more than two stories in height shall indicate where penetrations will be made for pipe., fittings and components and shall indicate the materi- °;a'ls and methods for maintaining required structural safety, ;fire- resistance rating and fire blocking. Exception: The code official shall have the authority to " waive the submission of construction documents, calcula- �tions or other data if the nature of the work applied for is '.such that reviewing of construction documents is not nec- k :pessary to determine compliance with this code. 106.4 Permit issuance. The application, construction docu- ments`abd.other data filed by an applicant for permit shall be .reviewed by the code official. If the code official finds that the proposed work conforms to the requirements of this code and all ,laws and ordinances applicable thereto, and that the fees ;specified in Section 106.5 have been paid, a permit shall be 'issued to the applicant. •x;106.4.1 Approved construction documents. When the ''.code official issues the permit where construction docu- :ments are required, the construction documents shall be .endorsed in writing and stamped "APPROVED " Such approved construction documents shall not be changed, modified or altered without authorization from the code offi- cial. All work shall be done in accordance with the approved r construction documents. ;The code official shall have the authority to issue a permit ,for the construction of a part of .a plumbing system before the entire construction documents for the whole system have been submitted or approved, provided adequate information and detailed statements have been filed complying with all pertinent requirements of this code. The holder of such per - mit shall proceed at their own risk without assurance that the permit for the entire plumbing system will be granted. 106.4.2 Validity. The issuance of a permit or approval of construction documents shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of other ordinance of the jurisdiction. No per- mit presuming to give authority to violate or cancel the pro- visions of this code shall be valid. The issuance of a permit based upon construction docu- ments and other data shall not prevent the code official from thereafter requiring the correction of errors in said construc- tion documents and other data or from preventing building operations being carried on thereunder when in violation of this code or of other ordinances of this jurisdiction. 106.4.3 Expiration. Every _permit issued by the code official under the provisions of this code shall expire by limitation and become null and void if the work authorized by such per- mit is not commenced within 180 days from the date of such permit, or if the work authorized by,such petmit is suspended or abandoned at any'tiine after the work is commenced for a .period of 180 days: Before such work can be recommenced, a new permit shall be•first obtained and the fee therefor shall be one -half the amount required for a new ,permit for such work, provided no changes have been made or will be made in the original construction documents for such work, and provided.further that such suspension or abandonment has not exceeded one year. ;106.4.4 Extensions. Any �permittee holding an unexpired permit shall have the right to apply for an extension of the time within which the permittee will commence work :under that permit when work is unable to be commenced withi i4he time required by this .section -for good and satisfactory reasons. The code official shall extend the time for action by the permittee fora period not exceeding180 days if there is reasonable cause. No permit shall be extended more than once. The fee for an extension shall be one -half the amount required for a new permit for.such work. 106.4.5 Suspension or revocation of .permit. The code offi- cial shall revoke a permit or approval issued under the provi- sions of this code in case of any false statement or misrepre- sentation of fact in the application or on the construction documents upon which the permit or approval was based. 106.4.6 Retention of construction documents. .One set of construction documents shall be retained by the code official until final approval of the work covered therein. One set of approved construction documents shall be returned to -the applicant, and said set shall be kept on the site of the building or work at all times during which the work authorized thereby is in progress. 106.5 Fees. A permit shall not be issued until the fees pre- scribed in Section 106.5.2 have been paid, and an amendment to a permit shall not be released until the additional fee, if any, due to an increase of the plumbing systems, has been paid. 106.5.1 Work commencing before permit issuance. Any person who commences any work on a plumbing system before obtaining the necessary permits shall be subject to 100 percent of the usual permit fee in addition to the required permit fees. 106.5.2 Fee schedule. The fees for all plumbing work shall be as indicated in the following schedule: [JURISDICTION TO INSERT APPROPRIATE SCHEDULE] 106.5.3 Fee refunds. The code official shall authorize the refunding of fees as follows: 1 The full amount of any fee paid hereunder that was erroneously paid or collected. 2. Not more than [SPECIFY PERCENTAGE] percent of the per- mit fee paid when no work has been done under a permit issued in accordance with this code. 3 Not more than [SPECIFY PERCENTAGE] percent of the plan review fee paid when an application for a permit for which a plan review fee has been paid is withdrawn or canceled before any plan review effort has been expended. 4 1997 INTERNATIONAL PLUMBING CODE r 0 The code official shall not authorize the refunding of any fee paid except upon written application filed by the original per - mittee not later than 180 days after the date of fee payment. 106.6 Contractor's responsibilities. It shall be the duty of every contractor who enters into contracts for the installation or repair of plumbing systems for which a permit is required to comply with adopted state and local rules and regulations con- cerning licensing. SECTION 107 INSPECTIONS AND TESTING 107.1 Required inspections and testing. The code official, upon notification from the permit holder or the permit holder's agent, shall make the following inspections and such other inspections as necessary, and shall either release that portion of the construction or shall notify the permit holder or an agent of any violations that must be corrected. The holder of the permit shall be responsible for the scheduling of such inspections. 1 Underground inspection shall be made after trenches or ditches are excavated and bedded, piping installed, and before any backfill is put in place. 2. Rough -in inspection shall be made after the roof, framing, fireblocking, firestopping, draftstopping and bracing is in place and all sanitary, storm and water distribution piping is roughed -in, and prior to the installation of wall or ceil- ing membranes. 3 Final inspection shall be made after the building is com- plete, all plumbing fixtures are in place and properly con- nected, and the structure is ready for occupancy 107.1.1 Approved inspection agencies. The code official shall accept reports of approved inspection agencies pro- vided such agencies satisfy the requirements as to qualifica- tions and reliability 107.1.2 Evaluation and follow -up inspection services. Prior to the approval of a closed, prefabricated plumbing system and the issuance of a plumbing permit, the code offi- cial shall require the submittal of an evaluation report on each prefabricated plumbing system indicating the complete details of the plumbing system, including a description of the system and its components, the basis upon which the plumb- ing system is being evaluated, test results and similar information, and other data as necessary for the code official to determine conformance to this code. 107.1.2.1 Evaluation service. The code official shall des- ignate the evaluation service of an approved agency as the evaluation agency, and review such agency's evaluation report for adequacy and conformance to this code. 107.1.2.2 Follow -up inspection. Except where ready access is provided to all plumbing systems, service equip- ment and accessories for complete inspection at the site without disassembly or dismantling, the code official shall conduct the frequency of in -plant inspections neces- sary to ensure conformance to the approved evaluation report or shall designate an independent, approved inspection agency to conduct such inspections. The 1997 INTERNATIONAL PLUMBING CODE 106.6-107.4 inspection agency shall furnish the code official with the follow -up inspection manual and a report of inspections upon request, and the plumbing system shall have an iden- tifying label permanently affixed to the system indicating that factory inspections have been performed. 107.1.23 Test and inspection records. All required test and inspection records shall be available to the code offi- cial at all times during the fabrication of the plumbing sys- tem and the erection of the building, or such records as the code official designates shall be filed. 107.2 Special inspections. Special inspections of alternative engineered design plumbing systems shall be conducted in accordance with Sections 107.2.1 and 107.2.2. 107.2.1 Periodic inspection. The registered design profes- sional or designated inspector shall periodically inspect and observe the alternative engineered design to determine that the installation is in accordance with the approved construc- tion documents. All discrepancies shall be brought to the immediate attention of the plumbing contractor for correc- tion. Records shall be kept of all inspections. 107.2.2 Written report. The registered design professional shall submit a final report in writing to the code official upon completion of the installation, certifying that the alternative engineered design conforms to the approved construction documents. A notice of approval for the plumbing system shall not be issued until a written certification has been sub- mitted. 107.3 Testing. Plumbing work and systems shall be tested as required in Section 312 and in accordance with Sections 107.3 1 through 107.3.3 Tests shall be made by the permit holder and observed by the code official. 107.3.1 New, altered, extended or repaired systems. New plumbing systems and parts of existing systems that have been altered, extended or repaired shall be tested as pre- scribed herein to disclose leaks and defects, except that test- ing is not required in the following cases. 1. In any case that does not include addition to, replace- ment, alteration or relocation of any water supply, drainage or vent piping. 2. In any case where plumbing equipment is set up tempo- rarily for exhibition purposes. 107.3.2 Equipment, material and labor for tests. All equipment, material and labor required for testing a plumb- ing system or part thereof shall be furnished by the permit holder. 107.3.3 Reinspection and testing. Where any work or installation does not pass any initial test or inspection, the necessary corrections shall be made to comply with this code. The work or installation shall then be resubmitted to the code official for inspection and testing. 107.4 Coordination of inspections. Whenever, in the enforce- ment of this code or another code or ordinance, the responsibil- ity of more than one code official of the jurisdiction is involved, it shall be the duty of the code officials involved to coordinate their inspections and administrative orders as fully as practica- ble so that the owners and occupants of the structure shall not be 101.5 — 108.7.3 'subjected to visits by numerous inspectors or multiple or con- flicting orders. Whenever an inspector from any agency or ,department observes an apparent or actual violation of some provision of some law, ordinance or code not within the inspec- tor's authority to enforce, the inspector shall report the findings to the code official having jurisdiction. 107.5 Approval. After the prescribed tests and inspections indicate that the work complies in all respects with this code, a notice of approval shall be issued by the code official. 107.6'Tiemporary connection. The code official shall have the authority to authorize the temporary connection of the building or system to the utility source for the purpose of testing plumb- ing systems or for use under a temporary certificate of occu- pancy SECTION 108 VIOLATIONS 108.1 Unlawful .acts. It shall be unlawful for any person, firm or .corporation to erect, construct, alter, repair, remove, demol- ish or utilize any plumbing system, or cause same to be done, in conflict with or in violation of any of the provisions of this code. 108.2 Notice of violation. The code official shall serve a notice of violation or order to the person responsible for the erection, installation, alteration, extension, repair, removal or demoli- tion of plumbing work in violation of the provisions of this code, or in violation of a detail statement or the approved construction documents thereunder, or in violation of a permit or certificate issued under the provisions of this code. Such order shall direct the discontinuance of the illegal action or condition and the abatement of the violation. 1083 Prosecution of violation. If the notice of violation is not complied with promptly, the code official shall request the legal counsel of the jurisdiction to institute the appropriate proceed- ing at law or in equity to restrain, correct or abate such viola- tion, or to require the removal or termination of the unlawful occupancy of the structure in violation of the provisions of this code or of the order or direction made pursuant thereto. 108.4 Violation penalties. Any person who shall violate a pro- vision of this code or shall fail to comply with any of the requirements thereof or who shall erect, install, alter or repair plumbing work in violation of the approved construction docu- ments or directive of the code official, or of a permit or certifi- cate issued under the provisions of this code, shall be guilty of a [SPECIFY OFFENSE], punishable by a fine of not more than [AmouN77 dollars or by imprisonment not exceeding [NUMBER OF DAYS], or both such fine and imprisonment. Each day that a violation continues after due notice has been served shall be deemed a separate offense. 108.5 Stop work orders. Upon notice from the code official, work on any plumbing system that is being done contrary to the provisions of this code or in a dangerous or unsafe manner shall immediately cease. Such notice shall be in writing and shall be given to the owner of the property, or to the owner's agent, or to the person doing the work. The notice shall state the conditions under which work is authorized to resume. Where an emer- gency exists, the code official shall not be required to give a written notice prior to stopping the work. Any person who shall continue any work in or about the structure after having been served with a stop work order, except such work as that person is directed to perform to remove a violation or unsafe condition, shall be liable to a fine of not less'than [AMoumq dollars or more than [AMoupM dollars. 108.6 Abatement of violation. The imposition of the penalties herein prescribed shall not preclude the legal officer of the jurisdiction from instituting appropriate action to prevent unlawful construction or to restrain, correct or abate a viola- tion, or to prevent illegal occupancy of a building, structure or premises, or to stop an illegal act, conduct, business or utiliza- tion of the plumbing on or about any premises. 108.7 Unsafe plumbing. Any plumbing regulated by this code that is unsafe or .that constitutes a fire or health hazard, insani- tary condition, or is otherwise dangerous to human life is hereby declared unsafe. Any use of plumbing.regulated by this code constituting a hazard to safety, health or public welfare by reason of inadequate maintenance, dilapidation, obsolescence, fire hazard, disaster, damage or abandonment is hereby declared an unsafe use. Any such unsafe equipment is hereby declared to be a public nuisance and shall be abated by repair, rehabilitation, demolition or removal. 108.7.1 Authority to condemn equipment. Whenever the code official determines that any plumbing, or portion thereof, regulated by this code has become hazardous to life, health or property or has become insanitary, the code official shall order in writing that such plumbing either be removed or restored to a safe or sanitary condition. A time limit for compliance with such order shall be specified in the written notice. No person shall use or maintain defective plumbing after receiving such notice. When such plumbing is to be disconnected, written notice as prescribed in Section. 108.2 shall be given. In cases of immediate danger to life or property, such disconnection shall be made immediately without such notice. 108.7.2 Authority to order disconnection of utilities. The code official shall have the authority to order disconnection of any plumbing supplied to a building, structure or equip- ment regulated by this code when it is determined that the equipment or any portion thereof has become hazardous or insanitary Written notice of such order to disconnect service and the causes therefor shall be given within 24 hours to the owner and occupant of such building, structure or premises, provided, however, that in cases of immediate danger to life or property, such disconnection shall be made immediately without such notice. The code official shall immediately notify the serving utility in writing of the issuance of such order to disconnect. 108.73 Connection after order to disconnect. No person shall make connections from any energy, fuel, power supply or water distribution system or supply energy, fuel or water to any equipment regulated by this code that has been discon- nected or ordered to be disconnected by the code official or the use of which has been ordered to be discontinued by the 1997 INTERNATIONAL PLUMBING CODE code official until the code official authorizes the reconnec- tion and use of such equipment. When any plumbing is maintained in violation of this code, and in violation of any notice issued pursuant to the provisions of this section, the code official shall institute any appropriate action to prevent, restrain, correct or abate the violation. SECTION 109 MEANS OF APPEAL 109.1 Application for appeal. Any person shall have the right to appeal a decision of the code official to the board of appeals. An application for appeal shall be based on a claim that the true intent of this code or the rules legally adopted thereunder have been incorrectly interpreted, the provisions of this code do not fully apply, or an equally good or better form of construction is proposed. The application shall be filed on a form obtained from the code official within 20 days after the notice was served. 109.2 Membership of board. The board of appeals shall con- sist of five members appointed by the chief appointing author- ity as follows. one for five years, one for four years, one for three years, one for two years and one for one year. Thereafter, each new member shall serve for five years or until a successor has been appointed. 109.2.1 Qualifications. The board of appeals shall consist of five individuals, one from each of the following professions or disciplines: 1. Registered design professional who is a registered architect; or a builder or superintendent of building construction with at least ten years' experience, five of which shall have been in responsible charge of work. 2. Registered design professional with structural engi- neering or architectural experience. 3. Registered design professional with mechanical and plumbing engineering experience; or a mechanical and plumbing contractor with at least ten years' experience, five of which shall have been in responsible charge of work. 4 Registered design professional with electrical engi- neering experience; or an electrical contractor with at least ten years' experience, five of which shall have been in responsible charge of work. 5 Registered design professional with fire protection engineering experience; or a fire protection contractor with at least ten years' experience, five of which shall have been in responsible charge of work. 109.2.2 Alternate members. The chief appointing authority shall appoint two alternate members who shall be called by the board chairman to hear appeals during the absence or dis- qualification of a member. Alternate members shall possess the qualifications required for board membership, and shall be appointed for five years or until a successor has been appointed. 109.2.3 Chairman. The board shall annually select one of its members to serve as chairman. 1997 INTERNATIONAL PLUMBING CODE 109-109.7 109.2.4 Disqualification of member. A member shall not hear an appeal in which that member has any personal, pro- fessional or financial interest. 109.2.5 Secretary. The chief administrative officer shall designate a qualified clerk to serve as secretary to the board. The secretary shall file a detailed record of all proceedings in the office of the chief administrative officer. 109.2.6 Compensation of members. Compensation of members shall be determined by law 1093 Notice of meeting. The board shall meet upon notice from the chairman, within ten days of the filing of an appeal or at stated periodic meetings. 109.4 Open hearing. All hearings before the board shall be open to the public. The appellant, the appellant's representa- tive, the code official and any person whose interests are affected shall be given an opportunity to be heard. 109.4.1 Procedure. The board shall adopt and make avail- able to the public through the secretary procedures under which a hearing will be conducted. The procedures shall not require compliance with strict rules of evidence, but shall mandate that only relevant information be received. 109.5 Postponed hearing. When five members are not present to hear an appeal, either the appellant or the appellant's repre- sentative shall have the right to request a postponement of the hearing. 109.6 Board decision. The board shall modify or reverse the decision of the code official by a concurring vote of three mem- bers. 109.6.1 Resolution. The decision of the board shall be by resolution. Certified copies shall be furnished to the appel- lant and to the code official. 109.6.2 Administration. The code official shall take immediate action in accordance with the decision of the board. 109.7 Court review. Any person, whether or not a previous party of the appeal, shall have the right to apply to the appropri- ate court for a writ of certiorari to correct errors of law Applica- tion for review shall be made in the manner and time required by law following the filing of the decision in the office of the chief administrative officer. a 1997 INTERNATIONAL PLUMBING CODE CHAPTER 2 DEFINITIONS SECTION 201 GENERAL 201.1 Scope. Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code, have the meanings shown in this chapter. 201.2 Interchangeability. Words stated in the present tense include the future; words stated in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural the singular. 2013 Terms defined in other codes. Where terms are not defined in this code and are defined in the building or mechani- cal codes, such terms shall have the meanings ascribed to them as in those codes. 201.4 Terms not defined. Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies. SECTION 202 GENERAL DEFINITIONS ACCEPTED ENGINEERING PRACTICE. That which conforms to accepted principles, tests or standards of nation- ally recognized technical or scientific authorities. ACCESS (to). That which enables a fixture, appliance or equipment to be reached by ready access or by a means that first requires the removal or movement of a panel, door or similar obstruction (see "Ready access "). ACCESS COVER. A removable plate, usually secured by bolts or screws, to permit access to a pipe or pipe fitting for the purposes of inspection, repair or cleaning. ADAPTER FITTING. An approved connecting device that suitably and properly joins or adjusts pipes and fittings which do not otherwise fit together. AIR ADMITTANCE VALVE. One -way valve designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system. The device shall close by gravity and seal the vent terminal at zero differential pres- sure (no flow conditions) and under positive internal pressures. The purpose of an air admittance valve is to provide a method of allowing air to enter the plumbing drainage system without the use of a vent extended to open air and to prevent sewer gases from escaping into a building. AIR BREAK (DRAINAGE SYSTEM). A piping arrange- ment in which a drain from a fixture, appliance or device dis- charges indirectly into another fixture, receptacle or interceptor at a point below the flood level rim. AIR GAP (DRAINAGE SYSTEM). The unobstructed verti- cal distance through the free atmosphere between the outlet of 1997 INTERNATIONAL PLUMBING CODE the waste pipe and the flood level rim of the receptacle into which the waste pipe is discharging. AIR GAP (WATER DISTRIBUTION SYSTEM). The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture or other device and the flood level rim of the receptacle. ALTERNATIVE ENGINEERED DESIGN A plumbing system that performs in accordance with the intent of Chapters 3 through 13 and provides an equivalent level of performance for the protection of public health, safety and welfare. The system design is not specifically regulated by Chapters 3 through 13. ANCHORS. See "Supports." ANTISIPHON. A term applied to valves or mechanical devices that eliminate siphonage. APPROVED. Approved by the code official or other authority having jurisdiction. AREA DRAIN. A receptacle designed to collect surface or storm water from an open area. ASPIRATOR. A fitting or device supplied with water or other fluid_ under positive pressure that passes through an integral ori- fice or constriction, causing a vacuum. Aspirators are also referred to as suction apparatus, and are similar in operation to an ejector. BACKFLOW Backpressure. Pressure created by any means in the water distribution system, which by being in excess of the pressure in the water supply mains causes a potential backflow condi- tion. Backpressure, low head. A pressure less than or equal to 4.33 psi (29.88 kPa) or the pressure exerted by a 10 -foot (3048 mm) column of water. Backsiphonage. The backflow of potentially contaminated water into the potable water system as a result of the pressure in the potable water system falling below atmospheric pres- sure of the plumbing fixtures, pools, tanks or vats connected to the potable water distribution piping. Backwater valve. A device or valve installed in the building drain or sewer pipe where a sewer is subject to backflow, and which prevents drainage or waste from backing into a low level or fixtures and causing a flooding condition. Drainage. A reversal of flow in the drainage system. Water supply system. The flow of water or other liquids, mixtures or substances into the distribution pipes of a pota- ble water supply from any source except the intended source. BACKFLOW CONNECTION. Any arrangement whereby backflow is possible. 202 BACKFLOW PREVENTER. A device or means to prevent backflow BALL COCK. A water supply valve, opened or closed by means of a float or similar device, utilized to supply water to a tank. An antisiphon ball cock contains an antisiphon device in the form of an approved air gap or vacuum breaker that is an integral part of the ball cock unit and that is positioned on the discharge side of the water supply control valve. BASE FLOOD ELEVATION. A reference point, determined in accordance with the building code, based on the depth or peak elevation of flooding, including wave height, which has a 1- percent (100 -year flood) or greater chance of occurring in any given year. BATHROOM GROUP A group of fixtures, including or ex- cluding a bidet, and consisting of a water closet, lavatory, and bathtub or shower. Such fixtures are located together on the same floor level. BEDPAN STEAMER OR BOILER. A fixture utilized for scalding bedpans or urinals by direct application of steam or boiling water. BEDPAN WASHER AND STERILIZER. A fixture designed to wash bedpans and to flush the contents into the san- itary drainage system. Included are fixtures of this type that provide for disinfecting utensils by scalding with steam or hot water. BEDPAN WASHER HOSE. A device supplied with hot and cold water and located adjacent to a water closet or clinical sink to be utilized for cleansing bedpans. BRANCH. Any part of the piping system except a riser, main or stack. BRANCH INTERVAL. A distance along a soil or waste stack corresponding in general to a story height, but not less than 8 feet (2438 mm), within which the horizontal branches from one floor or story of a structure are connected to the stack. BRANCH VENT. A vent connecting one or more individual vents with a vent stack or stack vent. BUILDING. Any structure occupied or intended for support- ing or sheltering any occupancy BUILDING DRAIN. That part of the lowest piping of a drain- age system that receives the discharge from soil, waste and other drainage pipes inside and that extends 30 inches (762 mm) beyond the walls of the building and conveys the drainage to the building sewer. Combined. A building drain that conveys both sewage and stone water or other drainage. Sanitary A building drain that conveys sewage only Storm. A building drain that conveys storm water or other drainage, but not sewage. BUILDING SEWER. That part of the drainage system that extends from the end of the building drain and conveys the dis- charge to a public sewer, private sewer, individual sewage dis- posal system or other point of disposal. Combined. Abuilding sewer that conveys'both sewage and storm water or other drainage. Sanitary. A building sewer that conveys sewage only Storm. A building sewer that conveys storm water or other drainage, but not sewage. BUILDING SUBDRAIN. That portion of a drainage system that does not drain by gravity into the building sewer. BUILDING TRAP A device, fitting or assembly of fittings installed in the building drain to prevent circulation of air between the drainage system of the building and the building sewer. CIRCUIT VENT. A vent that connects to a horizontal drain- age branch and vents two traps to a maximum of eight traps or trapped fixtures connected into a battery CISTERN. A small covered tank for storing water for a home or farm. Generally, this tank stores rainwater to be utilized for purposes other than in the potable water supply, and .such tank is placed underground in most cases. CLEANOUT. An access opening in the drainage system uti- lized for the removal of obstructions. Types of cleanouts include a removable plug or cap, or a removable fixture or fix- ture trap. CODE. These regulations, subsequent amendments thereto, or any emergency rule or regulation that the administrative authority having jurisdiction has lawfully adopted. CODE OFFICIAL. The officer or other designated authority charged with the administration and enforcement of this code, or a duly authorized representative. COMBINATION FIXTURE. A fixture combining one sink and laundry tray or a two- or three - compartment sink or laun- dry tray in one unit. COMBINATION WASTE AND VENT SYSTEM. A spe- cially designed system of waste piping embodying the horizon- tal wet venting of one or more sinks or floor drains by means of a common waste and vent pipe adequately sized to provide free movement of air above the flow line of the drain. COMBINED BUILDING DRAIN. See "Building drain, combined." COMBINED BUILDING SEWER. See "Building sewer, combined." COMMON VENT. A vent connecting at the junction of two fixture drains or to a fixture branch and serving as a vent for both fixtures. CONCEALED FOULING SURFACE. Any surface of a plumbing fixture which is not readily visible and is not scoured or cleansed with each fixture operation. CONDUCTOR. A pipe inside the building that conveys storm water from the roof to a storm or combined building drain. CONSTRUCTION DOCUMENTS. All of the written, graphic and pictorial documents prepared or assembled for describing the design, location and physical characteristics of the elements of the project necessary for obtaining a building 10 1997 INTERNATIONAL PLUMBING CODE permit. The construction drawings shall be drawn to an appropriate scale. CONTAMINATION. An impairment of the quality of the potable water that creates an actual hazard to the public health through poisoning or through the spread of disease by sewage, industrial fluids or waste. CRITICAL LEVEL (C -L). An elevation (height) reference point that determines the minimum height at which a backflow preventer or vacuum breaker is installed above the flood level rim of the fixture or receptor served by the device. The critical level is the elevation level below which there is a potential for backflow to occur. If the critical level marking is not indicated on the device, the bottom of the device shall constitute the criti- cal level. CROSS CONNECTION. Any physical connection or arrangement between two otherwise separate piping systems, one of which contains potable water and the other either water of unknown or questionable safety or steam, gas or chemical, whereby there exists the possibility for flow from one system to the other, with the direction of flow depending on the pressure odifferential between the two systems (see "Backflow "). DEAD END. A branch leading from a soil, waste or vent pipe; a building drain, or a building sewer, and terminating at a devel- oped length of 2 feet (610 mm) or more by means of a plug, cap or other closed fitting. DEPTH OF WATER SEAL. The depth of water that would have to be removed from a full trap before air could pass through the trap. DEVELOPED LENGTH. T'he length of a pipeline measured along the centerline of the pipe and fittings. DISCHARGE PIPE. A pipe that conveys the discharges from plumbing fixtures or appliances. DRAIN. Any pipe that carries waste water or water -borne wastes in a building drainage system. DRAINAGE FITTINGS. A special type of fitting or fittings utilized in the drainage system. Drainage fittings are similar to cast -iron fittings, except that instead of having a bell and spigot, drainage fittings are recessed and tapped to eliminate ridges on the inside of the installed pipe. DRAINAGE FIXTURE UNIT Drainage (dfu). A measure of the probable discharge into the drainage system by various types of plumbing fixtures. The drainage fixture -unit value for a particular fixture depends on its volume rate of drainage discharge, on the time duration of a single drainage operation and on the average time between successive operations. DRAINAGE SYSTEM. All of the piping within a public or private premises that conveys sewage, rainwater or other liquid wastes to a point of disposal. A drainage system does not include the mains of public sewer systems or a private or public sewage treatment or disposal plant. Building gravity. A drainage system that drains by gravity into the building sewer. 202 Sanitary. A drainage system that carries sewage and excludes storm, surface and ground water Storm. A drainage system that carries rainwater, surface water, condensate, cooling water or similar liquid wastes. EFFECTIVE OPENING. The minimum cross - sectional area at the point of water supply discharge, measured or expressed in terms of the diameter of a circle or, if the opening is not circu- lar, the diameter of a circle of equivalent cross - sectional area. For faucets and similar fittings, the effective opening shall be measured at the smallest orifice in the fitting body or in the sup- ply piping to the fitting. ESSENTIALLY NONTOXIC TRANSFER FLUIDS. Fluids having a Gosselin rating of 1, including propylene gly- col, mineral oil; polydimethylsiloxane; hydrochlorofluorocar - bon, chlorofluorocarbon and hydrofluorocarbon refrigerants; and FDA- approved boiler water additives for steam boilers. ESSENTIALLY TOXIC TRANSFER FLUIDS. Soil, waste or gray water and fluids having a Gosselin rating of 2 or more including ethylene glycol, hydrocarbon oils, ammonia refrig- erants and hydrazine. EXISTING INSTALLATIONS. Any plumbing system regu- lated by this code that was legally installed prior to the effective date of this code, or for which a permit to install has been issued. FAUCET. A valve end of a water pipe by means of which water is drawn from or held within the pipe. FIXTURE. See "Plumbing fixture." FIXTURE BRANCH. A drain serving two or more fixtures that discharges to another drain or to a stack. FIXTURE DRAIN. The drain from the trap of a fixture to a junction with any other drain pipe. FIXTURE FITTING. A fitting that is attached to or accessible from a fixture and controls the volume and/or directional flow of water to, or conveys water from, that fixture. FIXTURE SUPPLY. The water supply pipe connecting a fix- ture to a branch water supply pipe or directly to a main water supply pipe. FLOOD LEVEL RIM. The edge of the receptacle from which water overflows. FLOOD ZONES Flood - hazard zone (A Zone). Areas that have been deter- mined to be prone to flooding but not subject to high- veloc- ity waters or wave action. High - hazard zone (V Zone). Areas of tidal influence that have been determined to be subject to wave heights in excess of 3 feet (914 mm) or subject to high - velocity wave run -up or wave - induced erosion. FLOW PRESSURE. The pressure in the water supply pipe near the faucet or water outlet while the faucet or water outlet is wide open and flowing. FLUSH TANK. A tank designed with a ball cock and flush valve to flush the contents of the bowl or usable portion of the fixture. 1997 INTERNATIONAL PLUMBING CODE 11 202 FIUSHOMETER TANK. A device integrated within an air accumulator vessel that is designed to discharge a predeter- mined quantity of water to fixtures for flushing purposes. FLUSHOMETER VALVE. A valve attached to a pressurized water supply pipe and so designed that when activated it opens the line for direct flow into the fixture at a rate and quantity to operate the fixture properly, and then gradually closes to reseal fixture traps and avoid water hammer. GREASE INTERCEPTOR. An interceptor whose rated flow exceeds 50 gpm and is located outside the building. GREASE TRAP. An interceptor whose rated flow is 50 gpm or less and is located inside the building. HANGERS. See "Supports." HORIZONTAL BRANCH DRAIN. A drainage branch pipe extending laterally from a soil or waste stack or building drain, with or without vertical sections or branches, that receives the discharge from two or more fixture drains or branches and con- ducts the discharge to the soil or waste stack or to the building drain. HORIZONTAL PIPE. Any pipe or fitting that makes an angle of less than 45 degrees (0.79 rad) with the horizontal. HOT WATER. Water at a temperature greater than or equal to 120 °F (49 °C). HOUSE TRAP See "Building trap." INDIRECT WASTE PIPE. A waste pipe that does not con- nect directly with the drainage system, but that discharges into the drainage system through an air break or air gap into a trap, fixture, receptor or interceptor. INDIVIDUAL SEWAGE DISPOSAL SYSTEM. A system for disposal of domestic sewage by means of a septic tank, cess- pool or mechanical treatment, designed for utilization apart from a public sewer to serve a single establishment or building. INDIVIDUAL VENT. A pipe installed to vent a fixture trap and connects with the vent system above the fixture served or terminates in the open air. INDIVIDUAL WATER SUPPLY. A water supply, except an approved public water supply, that serves one or more families. INTERCEPTOR. A device designed and installed to separate and retain for removal, by automatic or manual means, deleteri- ous, hazardous or undesirable matter from normal wastes, while permitting normal sewage or wastes to discharge into the drainage system by gravity JOINT Expansion.A loop, return bend or return offset that provides for the expansion and contraction in a piping system and is utilized in tall buildings or where there is a rapid change of temperature, as in power plants, steam rooms and similar occupancies. Flexible. Any joint between two pipes that permits one pipe to be deflected or moved without movement or deflection of the other pipe. Mechanical. See "Mechanical joint." Slip. A type of joint made by means of a washer or a special type of packing compound in which one pipe is slipped into the end of an adjacent pipe. LABELED. Equipment, devices, fixtures or materials bearing the label of an approved agency LEAD -FREE PIPE AND FITTINGS. Containing not more than 8.0 percent lead. LEAD -FREE SOLDER AND FLUX. Containing not more than 0.2 percent lead. LEADER. An exterior drainage pipe for conveying storm water from roof or gutter drains to an approved means of dis- posal. LOCAL VENT STACK. A vertical pipe to which connections are made from the fixture side of traps and through which vapor or foul air is removed from the fixture or device utilized on bed- pan washers. MAIN The principal pipe artery to which branches are con- nected. MAIN VENT. The principal artery of the venting system, to which the vent branches may be connected. MANIFOLD. See "Plumbing appurtenance." MECHANICAL JOINT. A connection between pipes, fit- tings, or pipes and fittings is not screwed, caulked, threaded, soldered, solvent cemented, brazed or welded. A joint in which compression is applied along the centerline of the pieces being joined. In some applications, the joint is part of a coupling, fit- ting or adapter. MEDICAL GAS SYSTEM. The complete system to convey medical gases for direct patient application from central supply systems (bulk tanks, manifolds and medical air compressors) through piping networks with pressure and operating controls, alarm warning systems, and related components, and extend- ing to station outlet valves at patient use points. MEDICAL VACUUM SYSTEMS. A system consisting of central- vacuum - producing equipment with pressure and oper- ating controls, shutoff valves, alarm- warning systems, gauges and a network of piping extending to and terminating with suit- able station inlets at locations where patient suction may be required. NONPOTABLE WATER Water not safe for drinking or per- sonal or culinary utilization. NUISANCE. Public nuisance as known as common law or in equity jurisprudence; whatever is dangerous to human life or detrimental to health, whatever structure or premises is not suf- ficiently ventilated, sewered, drained, cleaned or lighted, with respect to its intended occupancy; and whatever renders the air or human food or drink or water supply unwholesome. OCCUPANCY. The purpose for which a building or portion thereof is utilized or occupied. OFFSET. A combination of approved bends that makes two changes in direction bringing one section of the pipe out of line but into a line parallel with the other section. OPEN AIR. Outside the structure. 12 1997 INTERNATIONAL PLUMBING CODE PLUMBING. The practice, materials and fixtures utilized in the installation, maintenance, extension and alteration of all piping, fixtures, plumbing appliances and plumbing appurte- nances, within or adjacent to any structure, in connection with sanitary drainage or storm drainage facilities; venting systems; and public or private water supply systems. Not included in this definition are installations of chilled water piping in connection with refrigeration, process and comfort cooling; hot water piping in connection with building heating; and piping for fire protection systems. PLUMBING APPLIANCE. Any one of a special class of plumbing fixtures intended to perform a special function. Included are fixtures having the operation or control dependent on one or more energized components, such as motors, con- trols, heating elements, or pressure- or temperature- sensing elements. Such fixtures are manually adjusted or controlled by the owner or operator, or are operated automatically through one or more of the following actions: a time cycle, a temperature range, a pressure range, a measured volume or weight. PLUMBING APPURTENANCE. A manufactured device, prefabricated assembly or an on- the -job assembly of compo- nent parts that is an adjunct to the basic piping system and plumbing fixtures. An appurtenance demands no additional water supply and does not add any discharge load to a fixture or to the drainage system. PLUMBING FIXTURE. A receptacle or device that is either permanently or temporarily connected to the water distribution system of the premises and demands a supply of water there- from, discharges waste water, liquid -borne waste materials or sewage either directly or indirectly to the drainage system of the premises; or requires both a water supply connection and a discharge to the drainage system of the premises. PLUMBING SYSTEM. Includes the water supply and dis- tribution pipes, plumbing fixtures and traps, water - treating or water -using equipment; soil, waste and vent pipes; and sanitary and storm sewers and building drains, in addition to their respective connections, devices and appurtenances within a structure or premises. POLLUTION An impairment of the quality of the potable water to a degree that does not create a hazard to the public health but that does adversely and unreasonably affect the aes- thetic qualities of such potable waters for domestic use. POTABLE WATER. Water free from impurities present in amounts sufficient to cause disease or harmful physiological effects and conforming in bacteriological and chemical quality to the requirements of the Public Health Service Drinking Water Standards or the regulations of the public health author- ity having jurisdiction. PRIVATE. In the classification of plumbing fixtures, "private" applies to fixtures in residences and apartments, and to fixtures in nonpublic toilet rooms of hotels and motels and similar installations in buildings where the plumbing fixtures are intended for utilization by a family or an individual. 202 PUBLIC OR PUBLIC UTILIZATION. In the classification of plumbing fixtures, "public" applies to fixtures in general toi- let rooms of schools, gymnasiums, hotels, airports, bus and railroad stations, public buildings, bars, public comfort sta- tions, office buildings, stadiums, stores, restaurants, and other installations where a number of fixtures are installed so that their utilization is similarly unrestricted. PUBLIC WATER MAIN. A water supply pipe for public uti- lization controlled by public authority QUICK - CLOSING VALVE. A valve or faucet that closes automatically when released manually or that is controlled by a mechanical means for fast - action closing. READY ACCESS. That which enables a fixture, appliance or equipment to be directly reached without requiring the removal or movement of any panel, door or similar obstruction and without the use of a portable ladder, step stool or similar device. REDUCED PRESSURE PRINCIPLE BACKFLOW PRE - VENTER. A backflow prevention device consisting of two independently acting check valves, internally force - loaded to a normally closed position and separated by an intermediate chamber (or zone) in which there is an automatic relief means of venting to atmosphere, internally loaded to a normally open position between two tightly closing shutoff valves and with means for testing for tightness of the checks and opening of relief means. REGISTERED DESIGN PROFESSIONAL. An architect or engineer registered or licensed to practice professional architecture or engineering as defined by the statutory require- ments of the professional registration laws of the state in which the project is to be constructed. RELIEF VALVE Pressure relief valve. A pressure- actuated valve held closed by a spring or other means and designed to relieve pressure automatically at the pressure at which such valve is set. Temperature and pressure relief (T &P) valve. A com- bination relief valve designed to function as both a tempera- ture relief and pressure relief valve. Temperature relief valve. A temperature- actuated valve designed to discharge automatically at the temperature at which such valve is set. RELIEF VENT. A vent whose primary function is to provide circulation of air between drainage and vent systems. RIM. An unobstructed open edge of a fixture. RISER. See "Water pipe, riser." ROOF DRAIN. A drain installed to receive water collecting on the surface of a roof and to discharge such water into a leader or a conductor. ROUGH -IN. Parts of the plumbing system that are installed prior to the installation of fixtures. This includes drainage, water supply, vent piping and the necessary fixture supports and any fixtures that are built into the structure. SELF - CLOSING FAUCET. A faucet containing a valve that automatically closes upon deactivation of the opening means. SEPARATOR. See "Interceptor." 1997 INTERNATIONAL PLUMBING CODE 13 .202 SEWAGE. Any liquid waste containing animal or vegetable matter in suspension or solution, including liquids containing chemicals in solution. SEWAGE EJECTORS. A device for lifting sewage by entraining the sewage in a high - velocity jet of steam, air or water. SEWER 'Building sewer. See `Building sewer." -Public sewer. A common sewer directly controlled by pub - `=lic authority Sanitary sewer. A sewer that carries sewage and excludes siorm,:surface and ground water. Storm sewer. A sewer that conveys rainwater, surface water, condensate, cooling water or similar liquid wastes. .SLOPE. The fall (pitch) of a line of pipe in reference to a hori- zontal plane. In drainage, the slope is expressed as the fall in units vertical per units horizontal (percent) for a length of pipe. SOIL PIPE. A pipe that conveys sewage containing fecal mat - ter to'the building drain or building sewer. SPILL -PROOF VACUUM BREAKER An assembly con - sisting of one check valve force- loaded closed and an air -inlet vent valve force- loaded open to atmosphere, positioned down- stream of the check valve, and located between and including two tightly closing shutoff valves and a test cock. STACK A general term for any vertical line of soil, waste, vent or inside conductor piping that extends through at least one story with or without offsets. STACK VENT. The extension of a soil or waste stack above the.highest horizontal drain connected to the stack. STACK VENTING. A method of venting a fixture or fixtures through the soil or waste stack. STERILIZER Boiling type. A boiling -type sterilizer is a fixture of a non - Pressure type utilized for boiling instruments, utensils or other equipment for disinfection. These devices are portable or are connected to the plumbing system. Instrument. A device for the sterilization of various instru- ments. Pressure (autoclave). A pressure vessel fixture designed to utilize steam under pressure for sterilizing. Pressure instrument washer sterilizer. A pressure instru- ment washer sterilizer is a pressure vessel fixture designed to both wash and sterilize instruments during the operating cycle of the fixture. Utensil. A device for the sterilization of utensils as utilized in health care services. Water. A water sterilizer is a device for sterilizing water and storing sterile water. STERILIZER VENT. A separate pipe or stack, indirectly connected to the building drainage system at the lower termi- nal, that receives the vapors from nonpressure sterilizers, or the exhaust vapors from pressure sterilizers, and conducts the vapors directly to the open air. Also called vapor, steam, atmo- spheric or exhaust vent. STORM DRAIN. See "Drainage system, storm." STRUCTURE. That which is built or constructed or a portion thereof. SUBSOIL DRAIN. A drain that collects subsurface water or seepage water and conveys such water to a place of disposal. SUMP. A tank or pit that receives sewage or liquid waste, located below the normal grade of the gravity system and that must be emptied by mechanical means. SUMP PUMP An automatic water pump powered by an elec- tric motor for the removal of drainage, except raw sewage, from a sump, pit or low point. SUMP VENT. A vent from pneumatic sewage ejectors, or sim- ilar equipment, that terminates separately to the open air. SUPPORTS. Devices for supporting and securing pipe, fix- tures and equipment. SWIMMING POOL. Any structure; basin, chamber or tank containing an artificial body of water for swimming, diving or recreational bathing having a depth of 2 feet (610 mm) or more at any point. TEMPERED WATER. Water ranging in temperature from 85 °F (29 °C) to 120 °F (49 °C). TRAP A fitting or device that provides a liquid seal to prevent the emission of sewer gases without materially affecting the flow of sewage or waste water through the trap. TRAP SEAL. The vertical distance between the weir and the top of the dip of the trap. TYPE A DWELLING UNIT. A dwelling unit that is designed and constructed for accessibility in accordance with the provi- sions of CABO /ANSI A117 1 TYPE B DWELLING UNIT. A dwelling unit that is designed and constructed for accessibility in accordance with the provi- sions of this chapter or CABO /ANSI A1171 UNSTABLE GROUND. Earth that does not provide a uni- form bearing for the barrel of the sewer pipe between the joints at the bottom of the pipe trench. VACUUM. Any pressure less than that exerted by the atmo- sphere. VACUUM BREAKER. A type of backflow preventer installed on openings subject to normal atmospheric pressure that prevents backflow by admitting atmospheric pressure through ports to the discharge side of the device. VENT PIPE. See "Vent system." VENT STACK. A vertical vent pipe installed primarily for the purpose of providing circulation of air to and from any part of the drainage system. VENT SYSTEM. A pipe or pipes installed to provide a flow of air to or from a drainage system, or to provide a circulation of 14 1997 INTERNATIONAL PLUMBING CODE air within such system to protect trap seals from siphonage and backpressure. VERTICAL PIPE. Any pipe or fitting that makes an angle of 45 degrees (0.79 rad) or more with the horizontal. WALL -HUNG WATER CLOSET A wall - mounted water closet installed in such a way that the fixture does not touch the floor. WASTE. The discharge from any fixture, appliance, area or appurtenance that does not contain fecal matter. WASTE PIPE. A pipe that conveys only waste. WATER - HAMMER ARRESTOR. A device utilized to absorb the pressure surge (water hammer) that occurs when water flow is suddenly stopped in a water supply system. WATER HEATER. Any heating appliance or equipment that heats potable water and supplies such water to the potable hot water distribution system. WATER MAIN. A water supply pipe or system of pipes, installed and maintained by a city, township, county, public utility company or other public entity, on public property, in the street or in an approved dedicated easement of public or com- munity use. WATER OUTLET. A discharge opening through which water is supplied to a fixture, into the atmosphere (except into an open tank that is part of the water supply system), to a boiler or heat- ing system, or to any devices or equipment requiring water to operate but which are not part of the plumbing system. WATER PIPE Riser. A water supply pipe that extends one full story or more to convey water to branches or to a group of fixtures. Water distribution pipe. A pipe within the structure or on the premises that conveys water from the water service pipe, or from the meter when the meter is at the structure, to the points of utilization. Water service pipe. The pipe from the water main or other source of potable water supply, or from the meter when the meter is at the public right of way, to the water distribution system of the building served. WATER SUPPLY SYSTEM. The water service pipe, water distribution pipes, and the necessary connecting pipes, fittings, control valves and all appurtenances in or adjacent to the struc- ture or premises. WELL Bored. A well constructed by boring a hole in the ground with an auger and installing a casing. Drilled. A well constructed by making a hole in the ground with a drilling machine of any type and installing casing and screen. Driven. A well constructed by driving a pipe in the ground. The drive pipe is usually fitted with a well point and screen. Dug. A well constructed by excavating a large diameter shaft and installing a casing. 202 WHIRLPOOL BATHTUB. A plumbing appliance consist- ing of a bathtub fixture that is equipped and fitted with a circu- lating piping system designed to accept, circulate and discharge bathtub water upon each use. YOKE VENT. A pipe connecting upward from a soil or waste stack to a vent stack for the purpose of preventing pressure changes in the stacks. 1997 INTERNATIONAL PLUMBING CODE 15 16 1997 INTERNATIONAL PLUMBING CODE CHAPTER 3 GENERAL REGULATIONS SECTION 301 GENERAL 301.1 Scope. The provisions of this chapter shall govern the general regulations regarding the installation of plumbing not specific to other chapters. 301.2 System installation. Plumbing shall be installed with due regard to preservation of the strength of structural members and prevention of - damage to walls and other surfaces through fixture usage. 301.3 Connections to drainage system. All plumbing fix- tures, drains, appurtenances and appliances used to receive or discharge liquid wastes or sewage shall be connected properly to the drainage system of the building or premises, in accord- ance with the requirements of this code. This section shall not be construed to prevent indirect waste systems provided for in Chapter 8. 301.4 Connections to water supply. Every plumbing fixture, device or appliance requiring or using water for its proper operation shall be directly or indirectly connected to the water supply system in accordance with the provisions of this code. 301.5 Pipe, tube and fitting sizes. Unless otherwise specified, the pipe, tube and fitting sizes specified in this code are expressed in nominal or standard sizes as designated in the ref- erenced material standards. 301.6 Prohibited locations. Plumbing systems shall not be located in an elevator shaft or in an elevator equipment room. Exception: Floor drains, sumps and sump pumps shall be permitted at the base of the shaft provided they are indirectly connected to the plumbing system. SECTION 302 EXCLUSION OF MATERIALS DETRIMENTAL TO THE SEWER SYSTEM 302.1 Detrimental or dangerous materials. Ashes, cinders or rags; flammable, poisonous or explosive liquids or gases; oil, grease or any other insoluble material capable of obstructing, damaging or overloading the building drainage or sewer sys- tem, or capable of interfering with the normal operation of the sewage treatment processes, shall not be deposited, by any means, into such systems. 302.2 Industrial wastes. Waste products from manufacturing or industrial operations shall not be introduced into the public sewer until it has been determined by the code official or other authority having jurisdiction that the introduction thereof will not damage the public sewer system or interfere with the func- tioning of the sewage treatment plant. SECTION 303 MATERIALS 303.1 Identification. The manufacturer's mark or name and the quality of the product or identification shall be cast, embossed, stamped or indelibly marked on each length of pipe and each pipe fitting, trap, fixture, material and device utilized in a plumbing system in accordance with the applicable approved standard. 303.2 Installation of materials. All materials used shall be installed in strict accordance with the standards under which the materials are accepted and approved. In the absence of such installation procedures, the manufacturer's installation instruc- tions shall be followed. Where the requirement of referenced standards or manufacturer's installation instructions do not conform to minimum provisions of this code, the provisions of this code shall apply 303.3 Plastic pipe, fittings and components. All plastic pipe, fittings and components shall be identified with the mark of an t approved agency as conforming to NSF 14 303.4 Labeled. All plumbing appliances, plastic pipe, plastic fittings, plastic components, potable water pipe, potable water fittings, potable water components, faucets, fixture fittings and backflow preventers shall be labeled by an approved agency Labeling shall be in accordance with the procedures set forth in Sections 303 4 1 through 303.4.2.3 303.4.1 Testing. An approved agency shall test a representa- tive sample of the material or piping being labeled to the rele- vant standard or standards. The approved agency shall main- tain a record of all of the tests performed. The record shall provide sufficient detail to verify compliance with the test standard. 303.4.2 Inspection and identification. The approved agency shall periodically perform an inspection, which shall be in -plant if necessary, of the material or piping that is to be labeled. The inspection shall verify that the labeled material or piping is representative of the material or piping tested. 303.4.2.1 Independent. The agency to be approved shall be objective and competent. The agency shall also dis- close all possible conflicts of interest so that objectivity can be confirmed. 303.4.2.2 Equipment. An approved agency shall have adequate equipment to perform all required tests. The equipment shall be periodically calibrated. 303.4.2.3 Personnel. An approved agency shall employ experienced personnel educated in conducting, supervis- ing and evaluating tests. 1997 INTERNATIONAL PLUMBING CODE 17 304 — 306.2.3 SECTION 304 RODENTPROOFING 304.1 General. Plumbing systems shall be designed and installed in accordance with Sections 304.2 through 304 4 to prevent rodents from entering structures. 304.2 Strainer plates. All strainer plates on drain inlets shall be designed and installed so that all openings are not greater than 1/2 inch (12.7 mm) in least. dimension. 3043 Meter boxes. Meter boxes shall be constructed in such a manner that rodents are prevented from entering a structure by way of the water service pipes connecting the meter box and the structure. 304.4 Openings for pipes. In or on structures where openings have been made in walls, floors or ceilings for the passage of pipes, such openings shall be closed and protected by the instal- lation of approved metal collars that are securely fastened to the adjoining structure. SECTION 305 PROTECTION OF PIPES AND PLUMBING SYSTEM COMPONENTS 305.1 Corrosion. Pipes passing through concrete or cinder walls and floors or other corrosive material shall be protected against external corrosion by a protective sheathing or wrap- ping or other means that will withstand any reaction from lime and acid of concrete, cinder or other corrosive material. Sheath- ing or wrapping shall allow for expansion and contraction of piping to prevent any rubbing action. Minimum wall thickness of material shall be 0.025 inch (0.64 mm). 305.2 Breakage. Pipes passing through or under walls shall be protected from breakage. 305.3 Stress and strain. Piping in a plumbing system shall be installed so as to prevent strains and stresses that exceed the structural strength of the pipe. Where necessary, provisions shall be made to protect piping from damage resulting from expansion, contraction and structural settlement. 305.4 Sleeves. Annular spaces between sleeves and pipes shall be filled or tightly caulked in an approved manner. Annular spaces between sleeves and pipes in fire- resistance -rated assemblies shall be filled or tightly caulked in accordance with the building code. 305.5 Pipes through or under footings or foundation walls. Any pipe that passes under a footing or through a foundation wall shall be provided with a relieving arch, or a pipe sleeve pipe shall be built into the foundation wall. Such sleeve shall be two pipe sizes greater than the pipe passing through the wall. 305.6 Freezing. A water, soil or waste pipe shall not be installed outside of a building, in attics or crawl spaces, con- cealed in outside walls, or in any other place subjected to freez- ing temperature unless adequate provision is made to protect them from freezing by insulation or heat or both. Water service pipe shall be installed not less than 12 inches (305 mm) deep or less than 6 inches (152 mm) below the frost line. 305.6.1 Sewer depth. Building sewers that connect to pri- vate sewage disposal systems shall be a minimum of [NUM- BER] inches (mm) below finished grade at the point of septic tank connection. Building sewers shall be a minimum of (NUMBER) inches (mm) below grade. 305.7 Waterproofing of openings. Joints at the roof, around vent pipes, shall be made water tight by the use of lead, copper, galvanized steel, aluminum, plastic or other approved flashings or flashing material. Exterior wall openings shall be made wa- ter tight. 305.8 Protection against physical damage. In concealed locations where piping, other than cast -iron or galvanized steel, is installed through holes or notches in studs, joists, rafters or similar members less than 11/2 inches (38 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective shield plates shall be a minimum of i /16- inch -thick (1.6 mm) steel, shall cover the area of the pipe where the mem- ber is notched or bored, and shall extend a minimum of 2 inches (51 mm) above sole plates and below top plates. 305.9 Protection of components of plumbing system. Com- ponents of a plumbing system installed along alleyways, drive- ways, parking garages or other locations exposed to damage shall be recessed into the wall or otherwise protected in an approved manner. SECTION 306 TRENCHING, EXCAVATION AND BACKFILL 306.1 Support of piping. Buried piping shall be supported throughout its entire length. 306.2 Trenching and bedding. Where trenches are excavated such that the bottom of the trench forms the bed for the pipe, solid and continuous loadbearing support shall be provided between joints. Bell holes, hub holes and coupling holes shall be provided at points where the pipe is joined. Such pipe shall not be supported on blocks to grade. In instances where the materials manufacturer's installation instructions are more restrictive than those prescribed by the code, the material shall be installed in accordance with the more restrictive require- ment. 306.11 Overexcavation. Where trenches are excavated below the installation level of the pipe such that the bottom of the trench does not form the bed for the pipe, the trench shall be backfilled to the installation level of the bottom of the pipe with sand or fine gravel placed in layers of 6 inches (152 mm) maximum depth and such backfill shall be com- pacted after each placement. 306.2.2 Rock removal. Where rock is encountered in trenching, the rock shall be removed to a minimum of 3 inches (76 mm) below the installation level of the bottom of the pipe, and the trench shall be backfilled to the installa- tion level of the bottom of the pipe with sand tamped in place so as to provide uniform loadbearing support for the pipe between joints. The pipe, including the joints, shall not rest on rock at any point. 306.2.3 Soft loadbearing materials. If soft materials of poor loadbearing qualities are found at the bottom of the 18 1997 INTERNATIONAL PLUMBING CODE trench, stabilization shall be achieved by overexcavating a minimum of two pipe diameters and backfilling to the instal- lation level of the bottom of the pipe with fine gravel, crushed stone or a concrete foundation. The concrete foundation shall be bedded with sand tamped in place so as to provide uniform loadbearing support for the pipe between joints. 306.3 Backfilling. Loose earth, free from rocks, broken con- crete, frozen chunks and other rubble, shall be placed in the trench in 6 -inch (152 mm) layers and tamped in place. The backfill under and beside the pipe shall be compacted for pipe support. Backfill shall be brought up evenly on both sides of the pipe so that the pipe remains aligned. In instances where the materials manufacturer's installation instructions are more restrictive than those prescribed by the code, the material shall be installed in accordance with the more restrictive require- ment. 306.4 Tunneling. Where pipe is to be installed by tunneling, jacking or a combination of both, the pipe shall be protected from damage during installation and from subsequent uneven loading. Where earth tunnels are used, adequate supporting structures shall be provided to prevent future settling or caving. SECTION 307 STRUCTURAL SAFETY 307.1 General. In the process of installing or repairing any part of a plumbing and drainage installation, the finished floors, walls, ceilings, tile work or any other part of the building or premises that must be changed or replaced shall be left in a safe structural condition in accordance with the requirements of the building code. 307.2 Cutting, notching or bored holes. A framing member shall not be cut, notched or bored in excess of limitations speci- fied in the building code. 307.3 Penetrations of floor - ceiling assemblies and fire- resistance -rated assemblies. Penetrations of floor - ceiling assemblies and assemblies required to have a fire- resistance rating shall be protected in accordance with the building code. 307.4 'bench location. Trenches installed parallel to footings shall not extend below the 45- degree (0.79 rad) bearing plane of the footing or wall. SECTION 308 PIPING SUPPORT 308.1 General. All plumbing piping shall be supported in accordance with this section. 308.2 Piping seismic supports. Where earthquake loads are applicable in accordance with the building code, plumbing pip- ing supports shall be designed and installed for the seismic forces in accordance with the building code. 308.3 Materials. Hangers, anchors and supports shall support the piping and the contents of the piping. Hangers and strapping 306.3 — 308.9 material shall be of approved material that will not promote galvanic action. 308.4 Structural attachment. Hangers and anchors shall be attached to the building construction in an approved manner. 308.5 Interval of support. Pipe shall be supported in accord- ance with Table 308.5 TABLE 308.5 HANGER SPACING PIPING MATERIAL MAXIMUM HORIZONTAL SPACING (feet) MAXIMUM VERTICAL SPACING (feet) ABS pipe 4 4 Aluminum tubing 10 15 Brass pipe 10 10 Cast -iron pipes 5 15 Copper or copper -alloy pipe 12 10 Copper or copper -alloy tubing, 11/4 -inch diameter and smaller 6 10 Copper or copper -alloy tubing, 11 /2 -inch diameter and larger 10 10 CPVC pipe or tubing, 1 inch or smaller 3 5b CPVC pipe or tubing, 11/4 inches or larger 4 6b Steel pipe 12 15 Lead pipe Continuous 4 PB pipe or tubing 22/3 (32 inches) 4 PVC pipe 4 4 For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. a The maximum horizontal spacing of cast -iron pipe hangers shall be increased to 10 feet where 10 -foot lengths of pipe are installed. b Mid -story guide. 308.6 Sway bracing. Rigid support sway bracing shall be pro- vided at changes in direction greater than 45 degrees (0.79 rad) for pipe sizes 4 inches (102 mm) and larger. 308.7 Anchorage. Anchorage shall be provided to restrain drainage piping from axial movement. 308.7.1 Location. For pipe sizes greater than 4 inches (102 mm), restraints shall be provided for drain pipes at all changes in direction and at all changes in diameter greater than two pipe sizes. Braces, blocks, rodding and other suit- able methods as specified by the coupling manufacturer shall be utilized. 308.8 Expansion joint fittings. Expansion joint fittings shall be used only where necessary to provide for expansion and con- traction of the pipes. Expansion joint fittings shall be of the typ- ical material suitable for use with the type of piping in which such fittings are installed. 308.9 Stacks. Bases of stacks shall be supported by concrete, brick laid in cement mortar or metal brackets attached to the building or by other approved methods. 1997 INTERNATIONAL PLUMBING CODE 19 308.10— 312.4 308.10 Parallel water distribution systems. Piping bundles for manifold systems shall be supported in accordance with Table 308.5. Support at changes in direction shall be in accord- ance with the manufacturer's installation instructions. Hot and cold water piping shall not be grouped in the same bundle. SECTION 309 FLOODPROOFING 309.1 General. Plumbing systems and equipment in structures erected in areas prone to flooding shall be constructed in accordance with the requirements of this section. 309.1.1 Base flood elevation. The base flood elevation shall be used to define areas prone to flooding and shall be estab- lished in accordance with the building code. 309.1.2 Flood- hazard zones. Areas which have been deter- mined to be prone to flooding shall be classified as either flood - hazard zones (A Zones) or high- hazard zones (V Zones) in accordance with the building code. 309.2 Flood hazard. The following systems and equipment located in a flood - hazard zone (A Zone) or a high- hazard zone (V Zone) shall be capable of resisting hydrostatic and hydro- dynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to the base flood elevation. 1 All water service pipes. 2. Pump seals in individual water supply systems where the pump is located below the base flood elevation. 3. Covers on potable water wells shall be sealed, except where the top of the casing well or pipe sleeve is elevated to at least 1 foot (305 mm) above the base flood elevation. 4 All sanitary drainage piping. 5 All storm drainage piping. 6. Manhole covers shall be sealed, except where elevated to or above the base flood elevation. 7 All other plumbing piping systems and equipment. SECTION 310 WASHROOM AND TOILET ROOM REQUIREMENTS 310.1 Light and ventilation. Washrooms and toilet rooms shall be illuminated and ventilated in accordance with the building and mechanical codes. 310.2 Location of fixtures and piping. Piping, fixtures or equipment shall not be located in such a manner as to interfere with the normal operation of windows, doors or other means of egress openings. 310.3 Interior finish. Interior finish surfaces of toilet rooms shall comply with the building code. 310.4 Water closet compartment. Each water closet utilized by the public or employees shall occupy a separate compart- ment with a door and walls or partitions between fixtures to en- sure privacy Exception. Water closet compartments shall not be required in a single- occupant toilet room with a lockable door. SECTION 311 TOILET FACILITIES FOR WORKERS 311.1 General. Toilet facilities shall be provided for construc- tion workers and such facilities shall be maintained in a sanitary condition. Construction worker toilet facilities of the nonsewer type shall conform to ANSI Z4.3 SECTION 312 TESTS AND INSPECTIONS 312.1 Required tests. The permit holder shall make the appli- cable tests prescribed in Sections 312.2 through 312.9 to deter- mine compliance with the provisions of this code. The permit holder shall give reasonable advance notice to the code official when the plumbing work is ready for tests. The equipment, material, power and labor necessary for the inspection and test shall be furnished by the permit holder and the permit holder shall be responsible for determining that the work will with- stand the test pressure prescribed in the following tests. All plumbing system piping shall be tested with either water or air. After the plumbing fixtures have been set and their traps filled with water, the entire drainage system shall be submitted to final tests. The code official shall require the removal of any cleanouts if necessary to ascertain if the pressure has reached all parts of the system. 312.2 Drainage and vent water test. A water test shall be applied to the drainage system either in its entirety or in sec- tions. If applied to the entire system, all openings in the piping shall be tightly closed, except the highest opening, and the sys- tem shall be filled with water to point of overflow If the system is tested in sections, each opening shall be tightly plugged except the highest openings of the section under test, and each section shall be filled with water, but no section shall be tested with less than a 10 -foot (3048 mm) head of water. In testing successive sections, at least the upper 10 feet (3048 mm) of the next preceding section shall be tested so that no joint or pipe in the building, except the uppermost 10 feet (3048 mm) of the system, shall have been submitted to a test of less than a 10 -foot (3048 mm) head of water. The water shall be kept in the system, or in the portion under test, for at least 15 minutes before inspection starts. The system shall then be tight at all points. 312.3 Drainage and vent air test. An air test shall be made by forcing air into the system until there is a uniform gauge pres- sure of 5 pounds per square inch (psi) (34.5 kPa) or sufficient to balance a 10 -inch (254 mm) column of mercury This pressure shall be held for a test period of at least 15 minutes. Any adjust- ments to the test pressure required because of changes in ambi- ent temperature or the seating of gaskets shall be made prior to the beginning of the test period. 312.4 Drainage and vent final test. The final test of the com- pleted drainage and vent system shall be visual and in sufficient detail to determine compliance with the provisions of this code except that the plumbing shall be subjected to a smoke test where necessary for cause. Where the smoke test is utilized, it shall be made by filling all traps with water and then introduc- ing into the entire system a pungent, thick smoke produced by one or more smoke machines. When the smoke appears at stack openings on the roof, the stack openings shall be closed and a 20 1997 INTERNATIONAL PLUMBING CODE 4 312.5-312.9 pressure equivalent to a 1 -inch water column (248.8 Pa) shall be maintained for 15 minutes before inspection starts. 312.5 Water supply system test. Upon completion of a section of or the entire water supply system, the system, or portion completed, shall be tested and proved tight under a water pres- sure not less than the working pressure of the system, or, for piping systems other than plastic, by an air test of not less than 50 psi (344 kPa). The water utilized for tests shall be obtained from a potable source of supply The required tests shall be per- formed in accordance with this section and Section 107 312.6 Gravity sewer test. Gravity sewer tests shall consist of plugging the end of the building sewer at the point of connec- tion with the public sewer, filling the building sewer with water, testing with not less than a 10 -foot (3048 mm) head of water and maintaining such pressure for 15 minutes. 312.7 Forced sewer test. Forced sewer tests shall consist of plugging the end of the building sewer at the point of connec- tion with the public sewer and applying a pressure of 5 psi (34.5 kPa) greater than the pump rating, and maintaining such pressure for 15 minutes. i 312.8 Storm drainage system test. Storm drain systems within a building shall be tested by water or air in accordance with Section 312.2 or Section 312:3 312.9 Inspection and testing of backflow prevention assem- blies. Inspections shall be made of all backflow prevention assemblies to determine whether they are operable. Reduced pressure principle backflow preventer assemblies, double check -valve assemblies, double- detector check -valve assem- blies and pressure vacuum breaker assemblies shall be tested. The frequency of testing shall be determined in accordance with the manufacturer's installation instructions. Where the manufacturer of the assembly does not specify the frequency of testing, the assembly shall be tested at least annually The test- ing procedure shall be performed in accordance with one of the following standards. ASSE 5010- 1013 -1, Sections 1 and 2 ASSE 5010- 1015 -1, Sections 1 and 2 ASSE 5010- 1015 -2 ASSE 5010- 1015 -3, Sections 1 and 2 ASSE 5010- 1015 -4, Sections 1 and 2 ASSE 5010- 1020 -1, Sections 1 and 2 ASSE 5010- 1047 -1, Sections 1, 2, 3 and 4 ASSE 5010- 1048 -1, Sections 1, 2, 3 and 4 ASSE 5010- 1048 -2 ASSE 5010- 1048 -3, Sections 1, 2, 3 and 4 ASSE 5010- 1048 -4, Sections 1, 2, 3 and 4 CSA B64 10 1997 INTERNATIONAL PLUMBING CODE 21 22 1997 INTERNATIONAL PLUMBING CODE CHAPTER 4 FIXTURES, FAUCETS AND FIXTURE FITTINGS SECTION 401 GENERAL 401.1 Scope. This chapter shall govern the materials, design and installation of plumbing fixtures, faucets and fixture fit- tings in accordance with the type of occupancy, and shall pro- vide for the minimum number of fixtures for various types of occupancies. 401.2 Prohibited fixtures and connections. Pan, valve, plunger, offset, washout, latrine, frostproof and other water closets having a concealed trap seal or an unventilated space or having walls that are not thoroughly washed at each discharge shall be prohibited. Any water closet that permits siphonage of the contents of the bowl back into the tank shall be prohibited. Trough urinals shall be prohibited. 4013 Water conservation. The maximum water flow rates and flush volume for plumbing fixtures and fixture fittings shall comply with Section 604 4 SECTION 402 FIXTURE MATERIALS 402.1 Quality of fixtures. Plumbing fixtures shall be constructed of approved materials, with smooth, impervious surfaces, free from defects and concealed fouling surfaces, and shall conform to standards cited in this code. All porcelain enameled surfaces on plumbing fixtures shall be acid resistant. 402.2 Materials for specialty fixtures. Materials for specialty fixtures not otherwise covered in this code shall be of stainless steel, soapstone, chemical stoneware or plastic, or shall be lined with lead, copper -base alloy, nickel - copper alloy, corrosion - resistant steel or other material especially suited to the applica- tion for which the fixture is intended. 402.3 Sheet copper. Sheet copper for general applications shall conform to ASTM B 152 and shall not weigh less than 12 ounces per square foot (3 7 kg/m2). 402.4 Sheet lead. Sheet lead for pans shall not weigh less than 4 pounds per square foot (19.5 kg/m2) coated with an asphalt paint or other approved coating. SECTION 403 MINIMUM PLUMBING FACILITIES 403.1 Minimum number of fixtures. Plumbing fixtures shall be provided for the type of occupancy and in the minimum number shown in Table 403 1. Types of occupancies not shown in Table 403.1 shall be considered individually by the code offi- cial. The number of occupants shall be determined by the build- ing code. Occupancy classification shall be determined in accordance with the building code. TABLE 403.1 MINIMUM NUMBER OF PLUMBING FACILITIESa (see Sections 403.2 and 403.3) (continued) 1997 INTERNATIONAL PLUMBING CODE 23 WATER CLOSETS DRINKING (Urinals see Section 419.2) BATHTUBS/ FOUNTAINS (see Section Male Female OCCUPANCY LAVATORIES SHOWERS 410.1) OTHERS A Theaters 1 per 125 1 per 65 1 per 200 — 1 per 1,000 1 service sink S Nightclubs 1 per 40 1 per 40 1 per 75 — 1 per 500 1 service sink S Restaurants 1 per 75 1 per 75 1 per 200 — 1 per 500 1 service sink E M Halls, museums, etc. 1 per 125 1 per 65 1 per 200 — 1 per 1,000 1 service sink B Coliseums, arenas 1 per 75 1 per 40 1 per 150 — 1 per 1,000 1 service sink L Churchesb 1 per 150 1 per 75 1 per 200 — 1 per 1,000 1 service sink Y Stadiums, pools, etc. 1 per 100 1 per 50 1 per 150 — 1 per 1,000 1 service sink Business (see Sections 403.2, 1 per 25 1 per 40 — 1 per 100 1 service sink 403.4 and 403.5) Educational 1 per 50 1 per 50 — 1 per 100 1 service sink Factory and industrial 1 per 100 1 per 100 (see Section 411) 1 per 400 1 service sink High hazard (see Sections 1 per 100 1 per 100 (see Section 411) 1 per 1,000 1 service sink 403.2 and 403 4) (continued) 1997 INTERNATIONAL PLUMBING CODE 23 4032-403.4 TABLE 103.1 -- continued tAINIMUM NUMBER OF PLUMBING FACILITIES° (see Sections 403.2 and 403.3) a The fixtures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction of the number of persons indicated. The number of occupants shall be determined by the building code. b Fixtures located in adjacent buildings under the ownership or control of the church shall be made available during periods the church is occupied. c 'Toilet facilities for employees shall be separate from facilities for inmates or patients. d A single- occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient rooms shall be permitted where such room is provided with direct access from each patient room and with provisions for privacy. e For day nurseries, a maximum of one bathtub shall be required. f For attached one- and two- family dwellings, one automatic clothes washer connection shall be required per 20 dwelling units. 403.2 Separate facilities. Where plumbing fixtures are required, separate facilities shall be provided for each sex. Exceptions: 1. Separate facilities shall not be required in residential occupancies. 2. Separate employee facilities shall not be required in occupancies in which 15 or less people are employed. 3 Separate facilities shall not be required in structures or tenant spaces with a total occupant load, including both employees and customers, of 15 or less in which food or beverage is served for consumption within the structure or tenant space. 403.3 Number of occupants of each sex. The required water closets, lavatories, and showers or bathtubs shall be distributed equally between the sexes based on the percentage of each sex anticipated in the occupant load. The occupant load shall be composed of 50 percent of each sex, unless statistical data approved by the code official indicate a different distribution of the sexes. 403.4 Location of employee toilet facilities in occupancies other than assembly or mercantile. Access to toilet facilities in occupancies other than mercantile and assembly occupan- cies shall be from within the employees' regular working area. The required toilet facilities shall be located not more than one story above or below the employees' regular working area and 24 1997 INTERNATIONAL PLUMBING CODE WATER CLOSETS (Urinals a" DRINKING Swdon 4192) BATHTUBS/ FOUNTAINS (sse SmOon Male Female OCCUPANCY LAVATORIES SHOWERS 410.1) OTHERS I Residential care 1 per 10 1 per 10 1 per 8 1 per 100 1 service sink N `S Hospitals, ambulatory nursing 1 per roomd 1 per room 1 per 15 1 pet 100 1 service sink per home patients floor T Day nurseries, sanitariums, I nonambulatory nursing home 1 per 15 1 per 15 1 per 15e 1 per 100 1 service sink T patients, etc.c U T Employees, other than 1 per 25 1 per 35 — 1 per 100 — I residential caret 0 Visitors, other than residential 1 per 75 1 per 100 — 1 per 500 — N care A Prisonsc 1 per cell 1 per cell 1 per 15 1 per 100 1 service sink L Asylums, reformatories, etc.c i per 15 1 per 15 1 per 15 1 per 100 1 service sink Mercantile (see Sections 403.2, 1 per 500 1 .per 750 — 1 per 1,000 1 service sink 403.4 and 403.5) Hotels, motels 1 per guestroom gu 1 per 1 per guestroom — 1 service sink R Lodges 1 per 10 1 per 10 1 per 8 1 per 100 1 service sink E 1 kitchen sink per S dwelling unit; I D Multiple family 1 per dwelling unit 1 per dwelling unit 1 per dwelling unit _ 1 automatic clothes washer connection E per 20 dwelling N units T Dormitories 1 per 10 1 per 10 1 per 8 1 per 100 1 service sink I A i kitchen sink per L dwelling unit; One- and two - family dwellings 1 per dwelling unit dwelling unit 1 per dwelling unit — 1 automatic clothes washer connection per dwelling unitf Storage (see Sections 403.2 and 1 per 100 1 per 100 (see Section 411) 1 per 1,000 1 service sink 403.4) a The fixtures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction of the number of persons indicated. The number of occupants shall be determined by the building code. b Fixtures located in adjacent buildings under the ownership or control of the church shall be made available during periods the church is occupied. c 'Toilet facilities for employees shall be separate from facilities for inmates or patients. d A single- occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient rooms shall be permitted where such room is provided with direct access from each patient room and with provisions for privacy. e For day nurseries, a maximum of one bathtub shall be required. f For attached one- and two- family dwellings, one automatic clothes washer connection shall be required per 20 dwelling units. 403.2 Separate facilities. Where plumbing fixtures are required, separate facilities shall be provided for each sex. Exceptions: 1. Separate facilities shall not be required in residential occupancies. 2. Separate employee facilities shall not be required in occupancies in which 15 or less people are employed. 3 Separate facilities shall not be required in structures or tenant spaces with a total occupant load, including both employees and customers, of 15 or less in which food or beverage is served for consumption within the structure or tenant space. 403.3 Number of occupants of each sex. The required water closets, lavatories, and showers or bathtubs shall be distributed equally between the sexes based on the percentage of each sex anticipated in the occupant load. The occupant load shall be composed of 50 percent of each sex, unless statistical data approved by the code official indicate a different distribution of the sexes. 403.4 Location of employee toilet facilities in occupancies other than assembly or mercantile. Access to toilet facilities in occupancies other than mercantile and assembly occupan- cies shall be from within the employees' regular working area. The required toilet facilities shall be located not more than one story above or below the employees' regular working area and 24 1997 INTERNATIONAL PLUMBING CODE the path of travel to such facilities shall not exceed a distance of 500 feet (152 m). Employee facilities shall be either separate facilities or public customer facilities. Exception: Facilities that are required for employees in stor- age structures or kiosks, and are located in adjacent struc- tures under the same ownership, lease or control, shall be a maximum travel distance of 500 feet (152 m) from the employees' regular working area. 403.5 Location of employee toilet facilities in mercantile and assembly occupancies. Employees shall be provided with toilet facilities in buildings and tenant spaces utilized as restau- rants, nightclubs, places of public assembly and mercantile occupancies. The employee facilities shall be either separate facilities or public customer facilities. Exception: Employee toilet facilities shall not be required in tenant spaces of 900 square feet (84 m2) or less where the travel distance from the main entrance of the tenant space to a central toilet area does not exceed 500 feet (152 m) and such central toilet facilities are located not more than one story above or below the tenant space. 403.6 Customer facilities. Customers, patrons and visitors shall be provided with public toilet facilities in structures and tenant spaces intended for public use and utilized as restau- rants, nightclubs, places of assembly, business and mercantile occupancies. Customer toilet facilities shall be located not more than one story above or below the space required to be provided with customer toilet facilities and the path of travel to such facilities shall not exceed a distance of 500 feet (152 m). In covered mall buildings, required facilities shall be based on total square footage, and facilities shall be installed in each individual store or in a central toilet area located in accordance with this section. The maximum travel distance to the central toilet facilities in covered mall buildings shall be measured from the main entrance of any store or tenant space. 403.6.1 Pay facilities. Required facilities shall be free of charge and designated by legible signs for each sex. Where pay facilities are installed, such facilities shall be in excess of the required minimum facilities. SECTION 404 ACCESSIBLE PLUMBING FACILITIES 404.1 Where required. Toilet rooms and bathing facilities containing fixtures for occupants of a structure that is required to be accessible by the building code shall have at least one fix- ture or element of each type accessible in accordance with this section and CABO /ANSI A1171. Where water closet compartments are provided in a toilet room or bathing facility, a wheelchair - accessible compartment shall be provided in accordance with CABO /ANSI A117 1. Where six or more water closet compartments are provided in a toilet room or bathing facility, at least one ambulatory - accessible compart- ment shall be provided in accordance with CABO /ANSI A117 1 in addition to the wheelchair - accessible compartment. At least 50 percent of drinking fountains, but not less than one, provided on every floor shall be accessible. Accessible routes 403.5 — 404.3.1 1 to plumbing fixtures shall be provided in accordance with the requirements of the building code. Where required by the building code, fixtures and clear floor space requirements in Type B dwelling units in residential occupancies shall comply with Sections 404.2 and 404.3. Exceptions: 1 A private toilet room or bathing facility intended for utilization by a single occupant shall be permitted to be adaptable. 2. This section shall not apply to dwelling units, guest - rooms and patient toilet rooms that are not required by the building code to be accessible or adaptable. 404.2 Type B dwelling unit kitchens. Kitchens in dwelling units required to be Type B dwelling units shall comply with Sections 404.2.1 through 404.2.2.2. 404.2.1 Clearances. The clearance between all opposing base cabinets, countertops, appliances or walls within kitchen work areas shall be a minimum of 40 inches (1016 mm). Where kitchens have counters, appliances or cabinets located on three contiguous sides, the clearance between all opposing base cabinets, countertops, appliances or walls within the kitchen work area shall be a minimum of 60 inches (1524 mm). 404.2.2 Clear floor space. Clear floor space in kitchens shall comply with Sections 404.2.2.1 and 404.2.2.2 and CABO /ANSI A117 1. 404.2.2.1 Sink. A clear floor space at the sink shall be pro- vided for parallel approach by a wheelchair. The clear floor space shall extend a minimum of 15 inches (381 mm) from each side of the centerline of the sink. This sec- tion shall not apply to sinks complying with CABO /ANSI A117 1 404.2.2.2 Appliances. A clear floor space shall be pro- vided for parallel or forward approach by a wheelchair at dishwashers, ranges, cooktops, ovens, refrigerator /freez- ers and trash compactors. 404.3 Type B dwelling unit toilet and bathing facilities. Toi- let and bathing facilities in dwelling units required to be Type B dwelling units shall comply with Sections 404.3.3 and 404.3 4, and either Section 404.3 1 or Section 404.3.2. This section shall not apply to facilities on levels not required to be accessi- ble by the building code. 404.3.1 Single accessible fixtures. One of each type of fix- ture provided shall comply with Sections 404.3 1.1 through 404.3 1.4 The accessible fixtures shall be located in a single toilet/bathing area and access shall not require travel through other parts of the dwelling unit. 404.3.1.1 Lavatory. A clear floor space at the lavatory shall be provided for parallel approach by a wheelchair. The required clear floor space shall extend a minimum of 15 inches (381 mm) from each side of the centerline of the lavatory Exception. Clear floor space for parallel approach is not required for a lavatory complying with CABO/ ANSI A117 1. 1997 INTERNATIONAL PLUMBING CODE 25 404.3.1 1 1 -404.3-3.2 4043.1.1.1 Flood level rim. The flood level rim of the lavatory shall be a maximum of 34 inches (864 mm) above the finished floor. 4043.1.2 Water closets. The lateral distance from the centerline of the water closet to a side wall shall be a mini- mum of 18 inches (457 mm). Where the water closet is located between a bathtub and a lavatory, the lateral dis- tance from the centerline of the water closet to the adja- cent fixtures shall be a minimum of 18 inches (457 mm) on one side and 15 inches (381 mm) on the other side. The water closet shall be located to allow for the installation of a grab bar on the side with the 18 -inch (457 mm) required clearance. Clear floor space around the water closet shall comply with Sections 404.3 1.2.1 through 404.3 1.2.3 based on the type of wheelchair approach provided. 404.3.1.2.1 Parallel wheelchair approach. Where parallel wheelchair approach is provided to the water closet, the minimum clear floor space shall be 56 inches (1422 mm) measured perpendicular to the wall behind the water closet by 48 inches (1219 mm) measured from the side designated for the installation of grab bars. Vanities or lavatories located on the wall behind the water closet and within the required clear floor space shall not extend beyond the front of the water closet. 404.3.1.2.2 Forward wheelchair approach. Where forward wheelchair approach is provided to the water closet, the minimum clear floor space shall be 66 inches (1676 mm) measured perpendicular to the wall behind the water closet by 48 inches (1219 mm) measured from the side designated for the installation of grab bars. Vanities or lavatories located on the wall behind the water closet and within the required clear floor space shall not extend beyond the front of the water closet. 404.3.1.2.3 Parallel and forward wheelchair approach. Where parallel and forward wheelchair approach is provided to the water closet, the minimum clear floor space shall be 56 inches (1422 mm) mea- sured perpendicular to the wall behind the water closet by 42 inches (1067 mm) measured from the centerline of the water closet. 404.3.1.3 Bathtubs. A clear floor space adjacent to the bathtub shall be provided that is at least 30 inches (762 mm) measured perpendicular to the bathtub by 48 inches (1219 mm) measured parallel to the bathtub from the con- trol end of the bathtub. 404.3.1.4 Shower compartments. Where a shower compartment is the only bathing fixture, the shower compartment shall have minimum base dimensions of 36 inches by 36 inches (914 mm by 914 mm). Clear floor space shall be provided that is at least 30 inches (762 mm) measured perpendicular to the opening to the compart- ment by 48 inches (1219 mm) measured parallel to the compartment from the control side. Fold down or inte- grally molded -in seats in accessible shower compart- ments shall be permitted to project into the minimum base dimension. 404.3.2 Multiple accessible fixtures. Each fixture provided shall comply with Sections 404.3.2.1 through 404.3.2.4 A lavatory and a water closet located in a room containing only a lavatory and water closet shall not be required to comply with this section provided that the room does not contain the only lavatory or water closet on the accessible level of the dwelling unit. 4043.2.1 Lavatory. A clear floor space at the lavatory shall be provided for parallel approach by a wheelchair. The required clear floor space shall extend a minimum of 15 inches (381 mm) from each side of the centerline of the lavatory Exception: Clear floor space for parallel approach is not required for a lavatory complying with CABO/ ANSI A117 1 4043.2.2 Water closets. Water closets shall comply with Section 404.3 1.2. 4043.2.3 Bathtubs. Clear floor space at bathtubs shall comply with Section 404.3.2.3.1 or Section 404.3.2.3.2 based on the type of wheelchair approach provided. 404.3.2.3.1 Parallel wheelchair approach. Where parallel wheelchair approach is provided to the bathtub, the minimum clear floor space shall be 30 inches (762 mm) measured perpendicular to the bathtub by 60 inches (1524 mm) measured parallel to the bathtub from the control end. A lavatory shall not be located in the required clear floor space unless located at the con- trol end of the bathtub and a clear floor space is pro- vided that is at least 48 inches (1219 mm) measured parallel to the bathtub from the lavatory Alternatively, the lavatory located in the required clear floor space shall be provided with a removable base allowing for a forward approach to the bathtub in accordance with CABO /ANSI A117 1 404.3.2.3.2 Forward wheelchair approach. Where forward wheelchair approach is provided to the bath- tub, the minimum clear floor space shall be 48 inches (1219 mm) measured perpendicular to the bathtub by 60 inches (1524 mm) measured parallel to the bathtub from the control end. A water closet shall not be located in the required clear floor space unless located at the control end of the tub 404.3.2.4 Shower compartments. Shower compart- ments shall comply with Section 404.3.1.4 404.3.3 Clear floor space. The clear floor space required by Sections 404.31 and 404.3.2 for toilet and bathing facilities shall also comply with Sections 404.3.3 1 through 404.3.3.3. 404.3.3.1 Door swing. Doors shall not swing into the required clear floor space for any fixture unless a 30 -inch by 48 -inch (762 mm by 1219 mm) clear floor space is pro- vided beyond the arc of the door swing and within the room. 404.3.3.2 Knee and toe clearances. The minimum required clear floor space shall include the space created 26 1997 INTERNATIONAL PLUMBING CODE by knee and toe clearances provided at fixtures, appliances and cabinets. 15" 404.3.3.3 Overlap. Where clear floor spaces overlap, each required clear floor space shall comply with the _18" requirements of Section 404.3 CLEARANCE 404.3.4 Wall reinforcement. Where walls are located so as to permit the installation of grab bars and seats in accordance with CABO /ANSI A1171, reinforcements shall be pro- vided for the installation of such grab bars and seats. 30" 404.3.3.3— 405.6 30" 16" CLEARANCE LCOMPARTMENT Exceptions: 1. Wall reinforcements are not required in a room con- taining only a lavatory and a water closet, provided 30" 30" 15" that water c�loset on accesses ccessi 15" ble level of the dwelling 18 �---► K--� unit. CLEARANCE 2. Wall reinforcement is not required for shower UR UR TUB compartment seats where the shower compartment base is larger than 36 inches by 36 inches (914 mm by WC WC 18" 914 mm). F77 n SECTION 405 INSTALLATION OF FIXTURES 405.1 Water supply protection. The supply lines and fittings for every plumbing fixture shall be installed so as to prevent backflow 405.2 Access for cleaning. Plumbing fixtures shall be installed so as to afford easy access for cleaning both the fixture and the area around the fixture. 4053 Setting. Fixtures shall be set level and in proper align- ment with reference to adjacent walls. 405.3.1 Water closets, lavatories and bidets. A water closet, lavatory or bidet shall not be set closer than 15 inches (381 mm) from its center to any side wall, partition, vanity or other obstruction, or closer than 30 inches (762 mm) center - to- center between toilets or adjacent fixtures. There shall be at least 18 inches (457 mm) clearance in front of the water closet or bidet to any wall, fixture or door. Water closet compartments shall not be less than 30 inches (762 mm) wide and 60 inches (1524 mm) deep. There shall be at least 18 inches (457 mm) clearance in front of a lavatory to any wall, fixture or door (see Figure 405.3 1). 405.3.2 Urinals. A urinal shall not be set closer than 15 inches (381 mm) from the center of the urinal to any side wall, partition, vanity or other obstruction, or closer than 30 inches (762 mm) center -to- center between urinals (see Figure 405.3 1). 405.4 Floor and wall drainage connections. Connections between the drain and floor outlet plumbing fixtures shall be made with a floor flange. The flange shall be attached to the drain and anchored to the structure. Connections between the drain and wall -hung water closets shall be made with an approved extension nipple or horn adapter. The water closet FIGURE 405.3.1 FIXTURE CLEARANCES For SI: 1 inch = 25.4 mm. shall be bolted to the hanger with corrosion- resistant bolts or screws. Joints shall be sealed with an approved elastomeric gasket or setting compound conforming to FS TT P- 1536a. 405.4.1 Floor flanges. Floor flanges for water closets or similar fixtures shall not be less than 1/8 inch (3.2 mm) thick for brass, 1/4 inch (6.4 mm) thick for plastic, and 1/4 inch (6.4 mm) thick and not less than a 2 -inch (51 mm) caulking depth for cast -iron or galvanized malleable iron. Floor flanges of hard lead shall weigh not less than 1 pound 9 ounces (0.7 kg) and shall be composed of lead alloy with not less than 7 75 percent antimony by weight. Closet screws and bolts shall be of brass. Flanges shall be secured to the building structure with corrosion- resistant screws or bolts. 405.4.2 Securing floor outlet fixtures. Floor outlet fixtures shall be secured to the floor or floor flanges by screws or bolts of corrosion - resistant material. 405.4.3 Securing wall -hung water closet bowls. Wall - hung water closet bowls shall be supported by a concealed metal carrier that is attached to the building structural mem- bers so that strain is not transmitted to the closet connector or any other part of the plumbing system. The carrier shall con- form to ASME A112.6.1 405.5 Water -tight joints. Joints formed where fixtures come in contact with walls or floors shall be sealed. 405.6 Plumbing in mental health centers. In mental health centers, pipes or traps shall not be exposed, and fixtures shall be bolted through walls. 1997 INTERNATIONAL PLUMBING CODE 27 405.7-412.4 405.7 Design of overflows. Where any fixture is provided with ,an overflow, the waste shall be designed and installed so that standing water in the fixture will not rise in the overflow when the stopper is closed, and no water will remain in the overflow when the fixture is empty 405.7.1 Connection of overflows. The overflow from any fixture shall discharge into the drainage system on the inlet or fixture side of the trap. Exception: The overflow from a flush tank serving a water closet or urinal shall discharge into the fixture served. 405.8 Access to concealed connections. Fixtures with con- cealed slip -joint connections shall be .provided with an access panel or utility space at least 12 inches (305 mm) in its smallest dimension or other approved arrangement so as to provide access to the slip connections for inspection and repair. Where such access cannot be provided, access doors shall not be required provided that all joints are soldered, solvent cemented or screwed so as to form a solid connection. SECTION 406 AUTOMATIC CLOTHES WASHERS 406.1 Approval. Domestic automatic clothes washers shall conform to ASSE 1007 406.2 Water connection. The water supply to an automatic clothes washer shall be protected against backflow by an air gap installed integrally within the machine conforming to ASSE 1007 or with the installation of a backflow preventer in accordance with Section 608. 406.3 Waste connection. The discharge from an automatic clothes washer shall be through an air break and connected to a standpipe in accordance with Section 802.4 SECTION 407 BATHTUBS 407.1 Approval. Bathtubs shall conform to ANSI Z124 1, ASME A112.19 1, ASME A112.19 4, ASME A112.19.9, CSA B45.2, CSA B45.3 or CSA B45.5 407.2 Bathtub waste outlets. Bathtubs shall have waste out- lets a minimum of 11/2 inches (38 mm) in diameter. The waste outlet shall be equipped with an approved stopper. in accordance with Section 608.13.1, Section 608.13.2, Section 608.13.3, Section 608.13.5, Section 608.13.6 or Section 608.13.8. SECTION 409 DISHWASHING MACHINES 409.1 Approval. Domestic dishwashing machines shall con- form to ASSE 1006. Commercial dishwashing machines shall conform to ASSE 1004 409.2 Water connection. The water supply to a dishwashing machine shall be protected against backflow by an air gap or backflow preventer in accordance with Section 608. 409.3 Waste connection. Dishwashing machines shall dis- charge separately into a trap, trapped fixture, tailpiece of the kitchen sink or the dishwasher connection of a food waste grinder. SECTION 410 DRINKING FOUNTAINS 410.1 Approval. Drinking fountains shall conform to ASME A112.19 1, A112.19.2 or A112.19.9, and water coolers shall conform to ARI 1010. Where water is served in restaurants or where bottled water coolers are provided in other occupancies, drinking fountains shall not be required. 410.2 Prohibited location. Drinking fountains shall not be installed in public restrooms. SECTION 411 EMERGENCY SHOWERS AND EYEWASH STATIONS 411.1 Water connection. Emergency showers and eyewash stations shall be provided with a supply of cold water as required by the manufacturer. 411.2 Waste connection. Waste connections shall not be required for emergency showers and eyewash stations. SECTION 412 FLOOR DRAINS 412.1 Approval. Floor drains shall conform to ASME A112.21.1 or CSA B79 4073 Glazing. Windows and doors within a bathtub enclosure 412.2 Floor drain trap and strainer. Floor drain traps shall shall conform to the safety glazing requirements of the building have removable strainers. The strainer shall have a waterway code. area of not less than the area of the tailpiece. The floor drain shall be constructed so that the drain is capable of being cleaned. Access shall be provided to the drain inlet. SECTION 408 BIDETS 408.1 Approval. Bidets shall conform to ASME A112.19.2, ASME A112.19.9 or CSA B45 1 408.2 Water connection. The water supply to a bidet shall be protected against backflow by an air gap or backflow preventer 412.3 Size of floor drains. Floor drains shall have a minimum' 2- inch - diameter (51 mm) drain outlet. 412.4 Required location and construction. In public coin - operated laundries and in the central washing facilities of mul- tiple family dwellings, the rooms containing the automatic clothes washers shall be provided with floor drains located to 28 1997 INTERNATIONAL PLUMBING CODE readily drain the entire floor area. Such drains shall have a minimum outlet cross section of not less than 3 inches (76 mm) in diameter SECTION 413 FOOD WASTE GRINDER UNITS 413.1 Approval. Domestic food waste grinders shall conform to ASSE 1008. Commercial food waste grinders shall conform to ASSE 1009 Food waste grinders shall not increase the drain- age fixture unit load on the sanitary drainage system. 413.2 Domestic food waste grinder waste outlets. Domestic food waste grinders shall be connected to a drain of not less than 11/2 inches (38 mm) in diameter. 413.3 Commercial food waste grinder waste outlets. Com- mercial food waste grinders shall be connected to a drain a minimum of 2 inches (51 mm) in diameter. Commercial food waste grinders shall be connected and trapped separately from any other fixtures or sink compartments. 413.4 Water supply required. All food waste grinders shall be provided with a supply of cold water. SECTION 414 GARBAGE CAN WASHERS 414.1 Water connection. The water supply to a garbage can washer shall be protected against backflow by an air gap or a backflow preventer in accordance with Section 608.13 1, Sec- tion 608.13.2, Section 608.13.3, Section 608.13.5, Section 608.13.6 or Section 608.13.8. 414.2 Waste connection. Garbage can washers shall be trapped separately The receptacle receiving the waste from the washer shall have a removable basket or strainer to prevent the discharge of large particles into the drainage system. SECTION 415 LAUNDRY TRAYS 415.1 Approval. Laundry trays shall conform to ANSI Z124.6, ASME A112.19 1, ASME A112.19.3, ASME A112.19.9, CSA B45.2 or CSA B45 4 415.2 Waste outlet. Each compartment of a laundry tray shall be provided with a waste outlet a minimum of 11/2 inches (38 mm) in diameter and a strainer or crossbar to restrict the clear opening of the waste outlet. SECTION 416 LAVATORIES 416.1 Approval. Lavatories shall conform to ANSI Z124.3, ASME A112.191, ASME A112.19.2, ASME A112.19.3, ASME A112.19 4, ASME A112.19.9, CSA B45 1, CSA B45.2, CSA 1345.3 or CSA B45 4 Group wash -up equipment shall conform to the requirements of Section 402. Every 413 — 417.4.2 20 inches (508 mm) of rim space shall be considered as one lav- atory 416.2 Cultured marble lavatories. Cultured marble vanity tops with an integral lavatory shall ,conform to ANSI Z124.3 or CSA 1345.5 4163 Lavatory waste outlets. Lavatories shall have waste outlets not less than 11/4 inches (32 mm) in diameter. A strainer, pop -up stopper, crossbar or other device shall be provided to restrict the clear opening of the waste outlet. SECTION 417 SHOWERS 417.1 Approval. Prefabricated showers and shower compart- ments shall conform to ANSI Z124.2, ASME A112.19.9 or CSA B45.5 Shower valves for individual showers shall con- form to the requirements of Section 424 4 417.2 Water supply riser. Every water supply riser from the shower valve to the shower head outlet, whether exposed or not, shall be attached to the structure in an approved manner. 4173 Shower waste outlet. Waste outlets serving showers shall be at least 2 inches (51 mm) in diameter and, for other than waste outlets in bathtubs, shall have removable strainers not less than 3 inches (76 mm) in diameter with strainer openings not less than 1/4 inch (6.4 mm) in minimum dimension. Where each shower space is not provided with an individual waste out- let, the waste outlet shall be located and the floor pitched so that waste from one shower does not flow over the floor area serv- ing another shower. Waste outlets shall be fastened to the waste pipe in an approved manner. 417.4 Shower compartments. All shower compartments shall have a minimum of 900 square inches (0.58 m2) of interior cross- sectional area. Shower compartments shall not be less than 30 inches (762 mm) in minimum dimension measured from the finished interior dimension of the compartment, exclusive of fixture valves, showerheads, soap dishes, and safety grab bars or rails. The 30 -inch (762 mm) minimum dimension shall be measured as the side of a rectangle, altitude of a triangle or diameter of a circle. Except as required in Sec- tion 404.3 14, the minimum required area and dimension shall be measured from the finished interior dimension at a height equal to the top of the threshold and at a point tangent to its cen- terline. 417.4.1 Square shower units. Square shower units designed to accommodate a 32 -inch by 32 -inch (813 mm by 813 mm) nominal rough -in opening shall be permitted, pro- vided that such units conform in material composition to the applicable standards and provided that any exterior base side measures not less than 311/2 inches (800 mm). 417.4.2 Wall area. The wall area above built -in tubs with installed shower heads and in shower compartments shall be constructed of smooth, noncorrosive and nonabsorbent waterproof materials to a height not less than 6 feet (1829 mm) above the room floor level, and not less than 70 inches (1778 mm) where measured from the compartment floor at the drain. Such walls shall form a water -tight joint with each other and with either the tub, receptor or shower floor. 1997 INTERNATIONAL PLUMBING CODE 29 417.5 - 421 A 417.5 Shower floors or receptors. Floor surfaces shall be constructed of impervious, noncorrosive, nonabsorbent and waterproof materials. 417.5.1 Support. Floors or receptors under shower compartments shall be laid on, and supported by, a smooth and structurally sound base. 417.5.2 Pans. Floors under shower compartments, except where prefabricated receptors have been provided, shall be lined and made water tight by the provision of suitable shower pans of approved material. Such pans shall turn up on all sides at least 2 inches (51 mm) above the finished thresh- old level. Pans shall be securely fastened to the waste outlet at the seepage entrance, making a water -tight joint between the pan and the outlet. Exception: Floor surfaces under shower heads provided for rinsing laid directly on the ground are not required to comply with this section. 417.5.3 PVC sheets. Plasticized polyvinyl chloride (PVC) sheet shall be a minimum of 0.040 inch (1.02 mm) thick, and shall meet the requirements of ASTM D 4551. Sheets shall be joined by solvent welding in accordance with the manufacturer's instructions. 417.5.4 PE sheets. Nonplasticized chlorinated polyethylene (PE) sheet shall be a minimum 0.040 inch (1.02 mm) thick. 417.6 Glazing. Windows and doors within a shower enclosure shall conform to the safety glazing requirements of the building code. SECTION 418 SINKS 418.1 Approval. Sinks shall conform to ANSI Z124.6, ASME A112.191, ASME A112.19.2, ASME A112.19.3, ASME A112.19 4, ASME A112.19.9, CSA B45 1, CSA 1345.2, CSA B45.3 or CSA B45 4 418.2 Sink waste outlets. Sinks shall be provided with waste outlets a minimum of 11/2 inches (38 mm) in diameter. A strainer or crossbar shall be provided to restrict the clear open- ing of the waste outlet. Sinks on which a food waste * gnnder is installed shall have a waste opening a minimum of 3r/2 inches (89 mm) in diameter. SECTION 419 URINALS 419.1 Approval. Urinals shall conform to ASME A112.19.2, CSA B45 1 or CSA 1345.5 Urinals shall conform to the water consumption requirements of Section 604 4 Urinals shall con- form to the hydraulic performance requirements of ASME A112.19.6, CSA B45 1 or CSA B45.5 419.2 Substitution for water closets. In each bathroom or toi- let room, urinals shall not be substituted for more than 50 per- cent of the required water closets. 419.3 Urinals for public or employee toilet facilities. Urinals for public or employee toilet facilities shall have a visible trap seal. 419.4 Surrounding material. Wall and floor space to a point 2 feet (610 mm) in front of a urinal lip and 4 feet (121.9 mm) above the floor and at least 2 feet (610 mm) to each side of the urinal shall be waterproofed with a smooth, readily cleanable, nonabsorbent material. SECTION 420 WATER CLOSETS 420.1 Approval. Water closets shall conform to the water con- sumption requirements of Section 604 4 and shall conform to ANSI Z124 4, ASME A112.19.2, CSA B45 1, CSA B45 4 or CSA 1345.5 Water closets shall conform to the hydraulic per- formance requirements of ASME A112.19.6. Water closet tanks shall conform to ANSI Z124 4, ASME A112.19.2, ASME A112.19.9, CSA B45 1, CSA B45 4 or CSA 1345.5 420.2 Water closets for public or employee toilet facilities. Water closet bowls for public or employee toilet facilities shall be of the elongated type. 420.3 Water closet seats. Water closets shall be equipped with seats of smooth, nonabsorbent material. All seats of water clos- ets provided for public or employee toilet facilities shall be of the hinged open -front type. Integral water closet seats shall be of the same material as the fixture. Water closet seats shall be sized for the water closet bowl type. 420.4 Water closet connections. A 4 -inch by 3 -inch (102 mm by 76 mm) closet bend shall be acceptable. Where a 3 -inch (76 mm) bend is utilized on water closets, a 4 -inch by 3 -inch (102 mm by 76 mm) flange shall be installed to receive the fixture horn. SECTION 421 WHIRLPOOL BATHTUBS 421.1 Approval. Whirlpool bathtubs shall comply with ASME A112.19 7 or with CSA 1345.5 and CSA CAN /CSA -1345 (Sup- plement 1). 421.2 Installation. Whirlpool bathtubs shall be installed and tested in accordance with the manufacturer's installation instructions. The pump shall be located above the weir of the fixture trap. Access shall be provided to the pump. 4213 Drain. The pump drain and circulation piping shall be sloped to drain the water in the volute and the circulation piping when the whirlpool bathtub is empty 421.4 Suction fittings. Suction fittings for whirlpool bathtubs shall comply with ASME A112.19.8. 30 1997 INTERNATIONAL PLUMBING CODE . .,.. SECTION 422 HEALTH CARE FIXTURES AND EQUIPMENT 422.1 Scope. This section shall govern those aspects of health care plumbing systems that differ from plumbing systems in other structures. Health care plumbing systems shall conform to the requirements of this section in addition to the other requirements of this code. The provisions of this section shall apply to the special devices and equipment installed and main- tained in the following occupancies: nursing homes, homes for the aged, orphanages, infirmaries, first aid stations, psychiatric facilities, clinics, professional offices of dentists and doctors, mortuaries, educational facilities, surgery, dentistry, research and testing laboratories, establishments manufacturing phar- maceutical drugs and medicines, and other structures with sim- ilar apparatus and equipment classified as plumbing. 422.2 Approval. All special plumbing fixtures, equipment, devices and apparatus shall be of an approved type. 422.3 Protection. All devices, appurtenances, appliances and apparatus intended to serve some special function, such as ster- ilization, distillation, processing, cooling, or storage of ice or foods, and that connect to either the water supply or drainage system, shall be provided with protection against backflow, flooding, fouling, contamination of the water supply system and stoppage of the drain. 422.4 Materials. Fixtures designed for therapy, special cleans- ing or disposal of waste materials, combinations of such pur- poses, or any other special purpose, shall be of smooth, imper- vious, corrosion- resistant materials and, where subjected to temperatures in excess of 180 °F (82 °C), shall be capable of withstanding, without damage, higher temperatures. 422.5 Access. Access shall be provided to concealed piping in connection with special fixtures where such piping contains steam traps, valves, relief valves, check valves, vacuum break- ers or other similar items that require periodic inspection, serv- icing, maintenance or repair. Access shall be provided to con- cealed piping that requires periodic inspection, maintenance or repair. 422.6 Clinical sink A clinical sink shall have an integral trap in which the upper portion of a visible trap seal provides a water surface. The fixture shall be designed so as to permit complete removal of the contents by siphonic or blowout action and to reseal the trap. A flushing rim shall provide water to cleanse the interior surface. The fixture shall have the flushing and cleans- ing characteristics of a water closet. 422.7 Prohibited usage of clinical sinks and service sinks. A clinical sink serving a soiled utility room shall not be consid- ered as a substitute for, or be utilized as, a service sink. A serv- ice sink shall not be utilized for the disposal of urine, fecal mat- ter or other human waste. 422.8 Ice prohibited in soiled utility room. Machines for manufacturing ice, or any device for the handling or storage of ice, shall not be located in a soiled utility room. 422.9 Sterilizer equipment requirements. The approval and installation of all sterilizers shall conform to the requirements of the mechanical code. 422-424.4 422.9.1 Sterilizer piping. Access for the purposes of inspec- tion and maintenance shall be provided to all sterilizer piping and devices necessary for the operation of sterilizers. 422.9.2 Steam supply. Steam supplies to sterilizers, includ- ing those connected by pipes from overhead mains or branches, shall be drained to prevent any moisture from reaching the sterilizer. The condensate drainage from the steam supply shall be discharged by gravity 422.9.3 Steam condensate return. Steam condensate returns from sterilizers shall be a gravity return system. 422.9.4 Condensers. Pressure sterilizers shall be equipped with a means of condensing and cooling the exhaust steam vapors. Nonpressure sterilizers shall be equipped with a device that will automatically control the vapor, confining the vapors within the vessel. 422.10 Special elevations. Control valves, vacuum outlets and devices protruding from a wall of an operating, emergency, recovery, examining or delivery room, or in a corridor or other location where patients are transported on a wheeled stretcher, shall be located at an elevation that prevents bumping the patient or stretcher against the device. SECTION 423 SPECIALTY PLUMBING FIXTURES 423.1 Water connections. Baptisteries, ornamental and lily pools, aquariums, ornamental fountain basins, swimming pools, and similar constructions, where provided with water supplies, shall be protected against backflow in accordance with Section 608. 423.2 Approval. Specialties requiring water and waste con- nections shall be submitted for approval. SECTION 424 FAUCETS AND OTHER FIXTURE FITTINGS 424.1 Approval. Faucets and fixture fittings shall conform to ASME A112.18.1 or CSA CAN /CSA -B125 and shall conform to the water consumption requirements of Section 604 4 Fau- cets and fixture fittings that supply drinking water for human ingestion shall conform to the requirements of ANSI/NSF 61, Section 9 424.2 Hose spray. Sink faucets with a flexible hose and spray assembly shall conform to ASSE 1025 or CSA CAN /CSA- B125 424.3 Hand showers. Hand -held showers shall conform to ASSE 1014 or CSA CAN /CSA -B125 424.4 Shower valves. Shower and tub - shower combination valves shall be balanced pressure, thermostatic or combination mixing valves that conform to the requirements of ASSE 1016 or CSA CAN /CSA -B125 Such valves shall be equipped with handle position stops that are field adjusted in accordance with the manufacturer's instructions to a maximum hot water setting of 120 °F (49 °C). Exception: Balanced pressure, thermostatic or combination mixing valves shall not be required for showers and tub- 1997 INTERNATIONAL PLUMBING CODE 31 425-425.4 shower combinations in one- or two- family dwellings and multiple showers supplied with a single tempered water sup- ply provided the hot water supply for such showers is con- trolled by an approved master thermostatic mixing valve .adjusted in accordance with the manufacturer's instructions to a maximum hot water setting of 1207 (49 °C). Such mas- ter thermostatic mixing valves shall be sized according to the peak demand of fixtures located downstream of the valve ,and shall comply with ASSE 1016. The water heater thermo- stat shall not be used as the temperature - control device for compliance with this section. SECTION 425 FLUSHING DEVICES FOR WATER CLOSETS AND URINALS 425.1 Flushing devices required. Each water closet, urinal, clinical sink and any plumbing fixture that depends on trap siphonage to discharge the fixture contents to the drainage sys- tem shall be provided with a flushometer valve, flushometer tank or a flush tank designed and installed to supply water in quantity and rate of flow to flush the contents of the fixture, cleanse the fixture and refill the fixture trap. 425.1.1 Separate for each fixture. A flushing device shall not serve more than one fixture. 425.2 Flushometer valves and tanks. Flushometer valves and tanks shall comply with ASSE 1037 Vacuum breakers on flushometer valves shall conform to the performance require- ments of ASSE 1001 or CSA CAN /CSA -B64.1 1. Access shall be provided to vacuum breakers. Flushometer valves shall be of the water - conservation type and shall not be utilized where the water pressure is lower than the minimum required for normal operation. When operated, the valve shall automatically com- plete the cycle of operation, opening fully and closing posi- tively under the water supply pressure. Each flushometer valve shall be provided with a means for regulating the flow through the valve. The trap seal to the fixture shall be automatically re- filled after each valve flushing cycle. 425.3 Flush tanks. Flush tanks equipped for manual flushing shall be controlled by a device designed to refill the tank after each discharge and to shut off completely the water flow to the tank when the tank is filled to operational capacity The trap seal to the fixture shall be automatically refilled after each flushing. The water supply to flush tanks equipped for auto- matic flushing shall be controlled with a timing device or sen- sor control devices. 425.3.1 Ball cocks. All flush tanks shall be equipped with an antisiphon ball cock conforming to ASSE 1002 or CSA CAN /CSA -13125 The ball cock backflow preventer shall be located at least 1 inch (25 4 mm) above the full opening of the overflow pipe. A sheathed ball cock shall be installed in all gravity flush tanks in which the flush valve seat is located less than 1 inch (25 4 mm) above the flood level rim of the bowl. 4253.2 Overflows in flush tanks. Flush tanks shall be pro- vided with overflows discharging to the water closet or uri- nal connected thereto and shall be sized to prevent flooding the tank at the maximum rate at which the tanks are supplied with water. The opening of the overflow pipe shall be located above the flood level rim of the water closet or urinal or above a secondary overflow in the flush tank. 425.3.3 Sheet copper.'Sheet copper utilized for flush tank Y linings shall conform to ASTM B 152 and shall not weigh less than 10 ounces per square foot (0.03 kg/m2). 425.3.4 Access required. All parts in a flush tank shall be accessible for repair and replacement. 425.4 Flush pipes and fittings. Flush pipes and fittings shall be of nonferrous material and shall conform to ASME A112.19.5 or CSA CAN /CSA -13125 32 1997 INTERNATIONAL PLUMBING CODE CHAPTER 5 WATER HEATERS SECTION 501 GENERAL 501.1 Scope. The provisions of this chapter shall govern the materials, design and installation of water heaters and the related safety devices and appurtenances. 501.2 Water heater as space heater. A water heater used as a part of a space heating system shall have a maximum outlet water temperature of 1607 (71 °C). The potability of the water shall be maintained throughout the system. 501.3 Drain valves. Drain valves for emptying shall be installed at the bottom of each tank -type water heater and hot water storage tank. Drain valves shall conform to ASSE 1005 501.4 Location. Water heaters and storage tanks shall be located and connected so as to provide access for observation, maintenance, servicing and replacement. 501.5 Water heater labeling. All water heaters shall bear the label of an approved agency 501.6 Water temperature control in piping from tankless heaters. The temperature of water from tankless water heaters shall be a maximum of 140 °F (60 °C) when intended for domes- tic uses. This provision shall not supersede the requirement for protective shower valves in accordance with Section 424 4 501.7 Pressure marking of storage tanks. Storage tanks and water heaters installed for domestic hot water shall have the maximum allowable working pressure clearly and indelibly stamped in the metal or marked on a plate welded thereto or otherwise permanently attached. Such markings shall be in an accessible position outside of the tank so as to make inspection or reinspection readily possible. 501.8 Temperature controls. All hot water supply systems shall be equipped with automatic temperature controls capable of adjustments from the lowest to the highest acceptable tem- perature settings for the intended temperature operating range. SECTION 502 INSTALLATION 502.1 General. Water heaters shall be installed in accordance with the manufacturer's installation instructions. Gas- and oil- fired water heaters shall conform to the requirements of this code and the mechanical code or gas code. Electric water heat- ers shall conform to the requirements of this code and the provi- sions of NFPA 70 listed in Chapter 14 502.2 Water heaters installed in garages. Water heaters hav- ing an ignition source shall be elevated such that the source of ignition is not less than 18 inches (457 mm) above the garage floor. 502.3 Rooms used as a plenum. Water heaters using solid, liq- uid or gas fuel shall not be installed in a room containing air - handling machinery when such room is used as a plenum. 502.4 Prohibited location. Fuel -fired water heaters shall not be installed in a sleeping room, bathroom or a closet accessed through a sleeping room or bathroom. Exception: A sealed combustion chamber or direct vent water heater may be installed in a sleeping room, bathroom or closet accessed through a sleeping room or bathroom. 502.5 Water heaters installed in attics. Attics containing a water heater shall be provided with an opening and unob- structed passageway large enough to allow removal of the wa- ter heater. The passageway shall not be less than 30 inches (762 mm) high and 22 inches (559 mm) wide and not more than 20 feet (6096 mm) in length when measured along the centerline of the passageway from the opening to the water heater. The passageway shall have continuous solid flooring not less than 24 inches (610 mm) wide. A level service space at least 30 inch- es (762 mm) deep and 30 inches (762 mm) wide shall be present at the front or service side of the water heater. The clear access opening dimensions shall be a minimum of 20 inches by 30 inches (508 mm by 762 mm) where such dimensions are large enough to allow removal of the water heater. SECTION 503 CONNECTIONS 503.1 Cold water line valve. The cold water branch line from the main water supply line to each hot water storage tank or water heater shall be provided with a valve accessible on the same floor, located near the equipment and only serving the hot water storage tank or water heater. The valving shall not inter- fere or cause a disruption of the cold water supply to the remainder of the cold water system. 503.2 Water circulation. The method of connecting a circulat- ing water heater to the tank shall provide proper circulation of water through the water heater. The pipe or tubes required for the installation of appliances that will draw from the water heater or storage tank shall comply with the provisions of this code for material and installation. SECTION 504 SAFETY DEVICES 504.1 Antisiphon devices. An approved means shall be pro- vided to prevent siphoning of any storage water heater or tank. A cold water "dip" tube with a hole at the top or a vacuum relief valve installed in the cold water supply line above the top of the heater or tank shall be approved for this purpose. 504.2 Vacuum relief valve. Bottom fed water heaters and bot- tom fed tanks connected to water heaters shall have a vacuum 1997 INTERNATIONAL PLUMBING CODE 33 504.3-505.1 relief valve installed. The vacuum relief valve shall comply with ANSI Z21.22. 5043 Energy cutoff device. All automatically controlled water heaters shall be equipped with an energy cutoff device that will cut off the supply of heat energy to the water .tank before the temperature of the water in the tank exceeds 210 °F (99 °C). This cutoff device shall be required in addition to the temperature and pressure relief valves. 504.4 Shutdown. A separate switch shall be provided to termi- nate the energy supplied to electric hot water supply systems. A separate valve shall be provided to turn off the energy supplied to the main burner of all other types of hot water supply sys- tems. 504.5 Relief valve. All storage water heaters operating above atmospheric pressure shall be provided with an approved, self - closing (levered) pressure relief valve and temperature relief valve or combination thereof. The relief valve shall conform to ANSI Z21.22. The relief valve shall not be used as a means of controlling thermal expansion. 504.5.1 Installation. Such valves shall be installed in the shell of the water heater tank. Temperature relief valves shall be so located in the tank as to be actuated by the water in the top 6 inches (153 mm) of the tank served. For installations with separate storage tanks, the valves shall be installed on the tank and there shall not be any type of valve installed between the water heater and the storage tank. There shall not be a check valve or shutoff valve between a relief valve and the heater or tank served. 504.6 Relief valve approval. Temperature and pressure relief valves, or combinations thereof, and energy cutoff devices shall bear the label of an approved agency and shall have a tem- perature setting of not more than 210 °F (99 °C) and a pressure setting not exceeding the tank or water heater manufacturer's rated working pressure or 150 psi (1035 kPa), whichever is less. The relieving capacity of each pressure relief valve and each temperature relief valve shall equal or exceed the heat input to the water heater or storage tank. 504.7 Relief outlet waste. The outlet of a pressure, tempera- ture or other relief valve shall not be directly connected to the drainage system. 504.7.1 Discharge. The discharge from the relief valve shall be piped full -size separately to the outside of the building or to an indirect waste receptor located inside the building. In areas subject to freezing, the relief valve shall discharge through an air gap into an indirect waste receptor located within a heated space, or by other approved means. The dis- charge shall be installed in a manner that does not cause per- sonal injury or property damage and that is readily observ- able by the building occupants. The discharge from a relief valve shall not be trapped. The diameter of the discharge pip- ing shall not be less than the diameter of the relief valve out- let. The discharge pipe shall be installed so as to drain by gravity flow and shall terminate atmospherically not more than 6 inches (153 mm) above the floor. The end of the dis- charge pipe shall not be threaded. 504.7.2 Location. In addition to all other requirements, if the relief outlet discharge piping is installed so that it leaves the room or enclosure in which the water heater and relief valve are located and discharges to an indirect waste receptor, there shall be an air gap installed before or at the point of leaving the room or enclosure. 504.7.3 Materials. Relief valve discharge piping shall be of ' those materials listed in Section 605.5 or shall be tested, rated and approved for such use in accordance with ASME A112.4 1 Piping from safety pan drains shall be of those ma- terials listed in Table 605.5 504.8 Required pan. Where water heaters or hot water storage tanks are installed in locations where leakage of the tanks or connections will cause damage, the tank or water heater shall be installed in a galvanized steel or other metal pan of equal corrosion resistance having a minimum thickness of 24 gage, 0.0276 inch (0.70 mm). Electric water heaters shall be installed in a metal pan as herein required or in a high- impact plastic pan of at least 0.0625 inch (1.59 mm) thickness. 504.8.1 Pan size and drain. The pan shall not be less than 11/2 inches (38 mm) deep and shall be of sufficient size and shape to receive all dripping or condensate from the tank or water heater. The pan shall be drained by an indirect waste pipe having a minimum diameter of 1 inch (25 mm) or the outlet diameter of the required relief valve, whichever is larger. 504.8.2 Pan drain termination. The pan drain shall extend full -size and terminate over a suitably located indirect waste receptor or floor drain or extend to the exterior of the build- ing and terminate not less than 6 inches (152 mm) or more than 24 inches (610 mm) above the adjacent ground surface. SECTION 505 INSULATION 505.1 Unfired vessel insulation. Unfired hot water storage tanks shall be insulated so that heat loss is limited to a maxi- mum of 15 British thermal units per hour (Btu/h) per square foot (47 W /m2) of external tank surface area. For purposes of determining this heat loss, the design ambient temperature shall not be higher than 65 °F (18 °C). 34 1997 INTERNATIONAL PLUMBING CODE CHAPTER 6 WATER SUPPLY AND DISTRIBUTION SECTION 601 GENERAL 601.1 Scope. This chapter shall govern the materials, design and installation of water supply systems, both hot and cold, for utilization in connection with human occupancy and habitation and shall govern the installation of individual water supply sys- tems. 601.2 Solar energy utilization. Solar energy systems used for heating potable water or using an independent medium for heating potable water shall comply with the applicable require- ments of this code. The use of solar energy shall not compro- mise the requirements for cross connection or protection of the potable water supply system required by this code. 6013 Existing piping used for grounding. Existing metallic water service piping used for electrical grounding shall not be replaced with nonmetallic pipe or tubing until other approved means of grounding are provided. SECTION 602 WATER REQUIRED 6023.4 Disinfection of system. After construction or major repair, the individual water supply system shall be purged of deleterious matter and disinfected in accordance with Sec- tion 610. 6023.5 Pumps. Pumps shall be rated for the transport of po- table water. Pumps in an individual water supply system shall be constructed and installed so as to prevent contamina- tion from entering a potable water supply through the pump units. Pumps shall be sealed to the well casing or covered with a water -tight seal. Pumps shall be designed to maintain a prime and installed such that ready access is provided to the pump parts of the entire assembly for repairs. 6023.5.1 Pump enclosure. The pump room or enclosure around a well pump shall be drained and protected from freezing by heating or other approved means. Where pumps are installed in basements, such pumps shall be mounted on a block or shelf not less than 18 inches (457 mm) above the basement floor. Well pits shall be prohib- ited. SECTION 603 WATER SERVICE ' 602.1 General. Every structure equipped with plumbing fix- 603.1 Size of water service pipe. The water service pipe shall tures and utilized for human occupancy or habitation shall be be sized to supply water to the structure in the quantities and at provided with a potable supply of water in the amounts and at the pressures required in this code. The minimum diameter of the pressures specified in this chapter. water service pipe shall be 3/4 inch (19 1 mm). 602.2 Potable water required. Only potable water shall be supplied to plumbing fixtures that provide water for drinking, bathing or culinary purposes, or for the processing of food, medical or pharmaceutical products. Unless otherwise pro- vided in this code, potable water shall be supplied to all plumb- ing fixtures. 6023 Individual water supply Where a potable public water supply is not available, individual sources of potable water sup- ply shall be utilized. 602.3.1 Sources. Dependent on geological and soil condi- tions and the amount of rainfall, individual water supplies are of the following types: drilled well, driven well, dug well, bored well, spring, stream or cistern. Surface bodies of water and land cisterns shall not be sources of individual water sup- ply unless properly treated by approved means to prevent contamination. 602.3.2 Minimum quantity. The combined capacity of the source and storage in an individual water supply system shall supply the fixtures with water at rates and pressures as required by this chapter. 602.3.3 Water quality Water from an individual water sup- ply shall be approved as potable by the authority having jurisdiction prior to connection to the plumbing system. 603.2 Separation of water service and building sewer/ drain. Water service pipe and the building sewer shall be sepa- rated by 5 feet (1524 mm) of undisturbed or compacted earth. Exception: The required separation distance shall not apply where the bottom of the water service pipe within 5 feet (1524 mm) of the sewer is a minimum of 12 inches (305 mm) above the top of the highest point of the sewer and the pipe materials conform to Section 703 1. 603.2.1 Water service near sources of pollution. Potable water service pipes shall not be located in, under or above cesspools, septic tanks, septic tank drainage fields or seep- age pits (see Section 605.2 for soil and groundwater condi- tions). SECTION 604 DESIGN OF BUILDING WATER DISTRIBUTION SYSTEM 604.1 General. The design of the water distribution system shall conform to accepted engineering practice. Methods uti- lized to determine pipe sizes shall be approved. 604.2 System interconnection. At the points of interconnec- tion between the hot and cold water supply piping systems and 1997 INTERNATIONAL PLUMBING CODE 35 !604.3 - .804.8.1 ,rams :.»r. w, u.,... w. .o.,..sw....,w.....- .+..•.y.... .d.._.,_.....u...r.:u. r......,+. �aew. w•..,. o-,.. a....:..,`-.. a--,...... r.-.. w... Hr-..<....; u ....w,�,..».ww+w........a..... m».. ..w.,:: .w.uw+ww,w.- ,......,....+r;: .� -_ ;..e M..:i..�....+. 8 4i k,.. a+ .f.r.A�+".. .,,�,,,w+l.w.w...- ...« -ww �,r..w..� e.... .- .,•.,..r. ww..+ Waw., M+. r...=,.+ r-• .+ w- a«. v:.. s, e,,...+ �-. r.. r. ac.- +,..'�ww`.'.r......- vw,ra.; ++.e,..��+..... -t .. .. the .individual fixtures, appliances or devices, provisions shall 6. Water closets provided for the public in theaters, night - A* made to .prevent flow between such piping :systems. clubs, restaurants, halls, museums, coliseums, arenas, churches, stadiums and similar occupancies. 6043'Water distribution system design criteria. The water 7 Water closets provided for patients and residents in hos- distribution system shall be destgned, and.pipe sizes shall be ,_, _ - . -- -- - - --_:• itals;:nursing . homes,= sanitariums= and,,similar�occu -- -- ,3t� -�_- ;p selected such dtai and i conditions of peak demand; the capact - panties. r :ties-at the fixture supply pipe outlets .shall not be less than shown in Table 604.3. 8. Water closets provided for inmates and residents in _prisons, asylums, reformatories and similar occupan- . TABLE 604.3 'WATER DISTRIBUTION SYSTEM DESIGN CRITERIA '.REQUIRED CAPACITIES AT FIXTURE SUPPLY PIPE OUTLETS FIXTURE SUPPLY OUTLET m u _ V1. 'SERVING FLOW RATEa (gpm) PRESSURE w (PSI) Bathtub 4 8 Bidet 2 4 ,Coinbination fixture 4 8 Dishwasher, residential 2.75 .8 Drinking fountain 0.75 .8 Laundry tray 4 8 Lavatory 2 8 Shower 3 8 .Shower, temperature controlled 3 20 Sillcock, hose bibb 5 8 Sink, residential 2.5 8 'Sink, service 3 8 Urinal, valve 15 15 "Water closet, blow out, "flushometer valve 35 25 Water closet, flushometer tank 1.6 8 Water closet, siphonic, flushorneter valve 25 15 Water'closet, tank, close ,,coupled 3 8 Water closet, tank, one piece 6 20 Foi:Sl: 1 psi = 6.895 kPa, 1 gallon per minute (gpm) = 3.785 Um. a For additional requirements for flow rates and quantities,.see Section 604 4. 604.4 Maximum flow and water consumption. The maxi- mum water consumption flow rates and quantities for all plumbing fixtures and fixture fittings shall be in accordance with Table 604 4 Water consumption for water closets listed in the following exceptions shall not be greater than 4 gallons (15 L) per flushing cycle. Water consumption for urinals listed in the .following exceptions shall not be greater than 1.5 gallons (5 7 L) per flushing cycle. Exceptions: 1. Blowout design fixtures. 2. Penalware. 3 'Clinical sinks. 4 Service sinks. 5 Emergency showers. TABLE 604.4 'MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGS e, PLUMBING FIXTURE --- ---OR FIXTURE FITTING - MAXIMUM FLOW RATE - * ---OR QUANTITY8 -- b Lavatory,. private 2.5 gpm at 80 psi i _N. Lavatory, public 0.5 gpm at 80.psi Lavatory, . public, metering or self- closing 0.25 . gallon per metering cycle Shower head 2.5 gpm at 80 psi a Sink faucet 2.5 gpm at 60 psi Urinal 1.0 gallon per flushing cycle Water closet 1.6 gallons per flushing cycle For SI: 1 gallon = 3.7851, 1 gpm = 3.785 Um, l .psi = &895 kPa. a Consumption tolerances shall be determined from referenced standards. .,Ji 604.5 Size of fixture supply. The minimum size of a fixture supply pipe shall be as shown in Table,604.5 The1ixture sup- ply pipe shall not terminate more than X30 inches (762 mm) from the point of connection to the fixture. A reduced -size flexible connector installed between the supply pipe and the fixture shall be of an approved type. The supply pipe shall extend to the floor or wall adjacent to the fixture. The minimum size of indi- vidual distribution lines utilized in parallel water distribution systems shall be as shown in Table 604.5 604.6 Variable street pressures. Where street water train pressures fluctuate, the building water distribution system shall be designed for the minimum pressure available. 604.7 Inadequate water pressure. Wherever water pressure from the street main or other source of supply is insufficient to provide flow pressures at fixture outlets as required under Sec- tion 604.3, a water pressure booster system conforming to Sec- tion 606.5, shall be installed on the building water supply sys- tem. 604.8 Water pressure reducing valve or regulator. Where water pressure within a building exceeds 80 psi (552 kPa) static, an approved water pressure reducing valve conforming to ASSE 1003 with strainer shall be installed to reduce the pres- sure in the building water distribution piping to 80 psi (552 kPa) static or less. Exceptions to this requirement are service lines to sill cocks and outside hydrants, and main supply risers where pressure from the mains is reduced to 80 psi (552 kPa) or less at individual fixtures. 604.8.1 Valve design. The pressure reducing valve shall be designed to remain open to permit uninterrupted water flow in case of valve failure. ,36 1997 INTERNATIONAL PLUMBING CODE :� sr t,. v:. r TABLE 604.5 MINIMUM SIZES OF FIXTURE WATER SUPPLY PIPES FIXTURE MINIMUM PIPE SIZE (Inch) 'Bathtubs (60" x 32" and smaller)' 1/2 Bathtubs (larger than 60" x 32 ") 1/2 Bidet 3/8 Combination sink and tray 1/2 Dishwasher, domestic' 1/2 Drinking fountain 3/8 Hose bibbs 1/2 Kitchen sink' 1/2 Laundry, 1, 2 or 3 compartmentsa 1/2 Lavatory 3/8 Shower, single heads 1/2 Sinks, flushing rim 3/4 Sinks, service 1/2 Urinal, flush tank 1/2 Urinal, flush valve 3/4 Wall hydrant 1/2 Water closet, flush tank 3/8 Water closet, flush valve 1 Water closet, flushometer tank 3/8 Water closet, one piece' 1/2 For SI: 1 inch = 25 4 mm, 1 foot = 304.8 mm, 1 psi = 6.895 kPa. a Where the developed length of the distribution line is 60 feet or less, and the available pressure at the meter is a minimum of 35 psi, the minimum size of an individual distribution line supplied from a manifold and installed as part of a parallel water distribution system shall be one nominal tube size smaller than the sizes indicated. 604.8.2 Repair and removal. All water pressure reducing valves, regulators and strainers shall be so constructed and installed as to permit repair or removal of parts without breaking a pipeline or removing the valve and strainer from the pipeline. 604.9 Water hammer. The flow velocity of the water distribu- tion system shall be controlled to reduce the possibility of water hammer. A water - hammer arrestor shall be installed where quick - closing valves are utilized, unless otherwise approved. The arrestor shall be located within an effective range of the quick - closing valve. Water- hammer arrestors shall conform to ASSE 1010 Access shall be provided to water- hammer arres- tors. 604.10 Parallel water distribution system manifolds. Hot water and cold water manifolds installed with parallel con- nected individual distribution lines to each fixture or fixture fit- ting shall be designed in accordance with Sections 604 10.1 through 604 10.3 604.10.1 Manifold sizing. Hot water and cold water man- ifolds shall be sized in accordance with Table 604 10.1. The total gallons per minute is the demand of all outlets supplied. 604.8.2-605.5 TABLE 604.10.1 MANIFOLD SIZING NOMINAL SIZE INTERNAL DIAMETER (inches) MAXIMUM DEMAND (9Pm) Velocity at 4 feet per second Velocity at 6 feet per second 1/2 2 5 3/4 6 11 1 10 20 11/4 15 31 11/2 22 44 For SI: 1 inch = 25.4 mm, 1 gpm = 3.785 Urn, 1 foot per second = 0.305 m/s. 604.10.2 Valves. Individual fixture shutoff valves installed at the manifold shall be identified as to the fixture being sup- plied. 604.10.3 Access. Access shall be provided to manifolds. SECTION 605 MATERIALS, JOINTS AND CONNECTIONS 605.1 Water compatibility Water service pipe and water dis- tribution pipe shall be resistant to corrosive action and degrad- ing action from the potable water supplied by the water pur- veyor or individual water supply system. 605.2 Soil and ground water. The installation of a water serv- ice pipe shall be prohibited in soil and ground water contami- nated with solvents, fuels, organic compounds or other detri- mental materials causing permeation, corrosion, degradation or structural failure of the piping material. Where detrimental conditions are suspected, a chemical analysis of the soil and ground water conditions shall be required to ascertain the acceptability of the water service material for the specific installation. Where detrimental conditions exist, approved alternative materials or routing shall be required. 605.3 Lead content of water supply pipe and fittings. Pipe and pipe fittings, including valves and faucets, utilized in the water supply system shall have a maximum of 8 percent lead content. 605.4 Water service pipe. Water service pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table 605 4 All water service pipe or tubing, installed underground and outside of the structure, shall have a minimum working pressure rating of 160 psi (1100 kPa) at 73 4 °F (23 °C). Where the water pressure exceeds 160 psi (1100 kPa), piping material shall have a minimum rated working pressure equal to the high- est available pressure. Plastic water service piping shall termi- nate within 5 feet (1524 mm) inside the point of entry into a building. All ductile iron water pipe shall be cement mortar lined in accordance with AWWA C104 605.5 Water distribution pipe. Water distribution pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table 605.5 All hot water distribution pipe and tubing shall have a minimum pressure rating of 100 psi (690 kPa) at 180 °F (82 °C). 1997 INTERNATIONAL PLUMBING CODE 37 605.6-605.10.1 TABLE 605.4 WATER SERVICE PIPE MATERIAL STANDARD Acrylonitrile butadiene styrene ASTM D 1527; ASTM D 2282 (ABS) plastic pipe ASTM D 2846; ASTM F 441, Asbestos -cement pipe ASTM C 296 Brass pipe ASTM B 43 Copper or copper -alloy pipe ASTM B 42; ASTM B 302 Copper or copper -alloy tubing ASTM B 75, ASTM B 88, (Type K, WK, L, WL, M or ASTM B 251, ASTM B 447 WM) ASME B16.23, ASME Chlorinated polyvinyl chloride ASTM D 2846; ASTM F 441, (CPVC) plastic pipe ASTM F 442; CSA B137.6 Ductile iron water pipe AWWA C151, AWWA C115 Galvanized steel pipe ASTM A 53 Polybutylene (PB) plastic pipe ASTM D 2662; ASTM D 2666; and tubing ASTM D 3309; CSA B137.8 Polyethylene (PE) plastic pipe ASTM D 2239; CSA Polybutylene (PB) plastic pipe CAN /CSA- B137.1 Polyethylene (PE) plastic ASTM D 2737, CSA B137 1 tubing ASME B16.28 Cross - linked polyethylene ASTM F 876; ASTM F 877, (PEX) plastic tubing CSA CAN /CSA- B137.5 Cross - linked polyethylene/ ASTM F 1281, CSA aluminum /cross - linked CAN /CSA B13710 polyethylene (PEX -AL -PEX) pipe Polyethylene /aluminum/ ASTM F 1282; CSA polyethylene (PE- AL -PE) CAN /CSA- B137.9 pipe Polyvinyl chloride (PVC) ASTM D 1785, ASTM D 2241, plastic pipe ASTM D 2672; CSA CAN /CSA- B137.3 TABLE 605.5 WATER DISTRIBUTION PIPE MATERIAL STANDARD Brass pipe ASTM B 43 Chlorinated polyvinyl chloride ASTM D 2846; ASTM F 441, (CPVC) plastic pipe and ASTM F 442; CSA B137.6 tubing ASTM F 437, ASTM F 438; Copper or copper -alloy pipe ASTM B 42; ASTM B 302 Copper or copper -alloy tubing ASTM B 75; ASTM B 88, (Type K, WK, L, WL, M or ASTM B 251, ASTM B 447 WM) ASME B16.23, ASME Cross - linked polyethylene ASTM F 877, CSA (PEX) plastic tubing CAN /CSA- B137.5 Cross - linked polyethylene/ ASTM F 1281, CSA aluminum /cross - linked CAN /CSA- B13710 polyethylene (PEX -AL -PEX) ASTM D 2609 pipe ASTM D 2464, ASTM D 2466; Galvanized steel pipe ASTM A 53 Polybutylene (PB) plastic pipe ASTM D 3309; CSA and tubing CAN3- 13137.8 605.6 Fittings. Pipe fittings shall be approved for installation with the piping material installed and shall conform to the respective pipe standards or one of the standards listed in Table 605.6. All pipe fittings utilized in water supply systems shall also conform to NSF 61 The fittings shall not have ledges, shoulders or reductions capable of retarding or obstructing flow in the piping. Ductile and gray iron pipe fittings shall be cement mortar lined in accordance with AWWA C104 605.7 Valves. All valves shall be of the approved type and com- patible with the type of piping material installed in the system. 605.8 Manufactured pipe nipples. Manufactured pipe nip- ples shall conform to one of the standards listed in Table 605.8. TABLE 605.6 PIPE FITTINGS MATERIAL STANDARD Acrylonitrile butadiene styrene ASTM D 2468 (ABS) plastic ASTM B 687 Cast iron ASME B16.4, ASME B16.12 Chlorinated polyvinyl chloride ASTM F 437, ASTM F 438; (CPVC) plastic ASTM F 439 Copper or copper alloy ASME B16.15, ASME B16.18, ASME B16.22; ASME B16.23, ASME B16.26; ASME B16.29; ASME B16.32 Gray iron and ductile iron AWWA C110; AWWA C153 Malleable iron ASME B16.3 Polyethylene (PE) plastic ASTM D 2609 Polyvinyl chloride (PVC) ASTM D 2464, ASTM D 2466; plastic ASTM D 2461; CSA CAN /CSA- B137.2 Steel ASME B16.9; ASME B16.11, ASME B16.28 TABLE 605.8 MANUFACTURED PIPE NIPPLES MATERIAL STANDARD Steel ASTM A 733 Brass -, copper -, chromium - plated ASTM B 687 605.9 Prohibited joints and connections. The following types of joints and connections shall be prohibited. 1 Cement or concrete joints. 2. Joints made with fittings not approved for the specific installation. 3 Solvent- cement joints between different types of plastic pipe. 4 Saddle -type fittings. 605.10 ABS plastic. Joints between ABS plastic pipe or fit- tings shall comply with Sections 605 10.1 through 605 10.3 605.10.1 Mechanical joints. Mechanical joints on water pipes shall be made with an elastomeric seal conforming to ASTM D 3139 Mechanical joints shall only be installed in underground systems, unless otherwise approved. Joints shall be installed in accordance with the manufacturer's instructions. 38 1997 INTERNATIONAL PLUMBING CODE I 605.10.2 Solvent cementing. Joint surfaces shall be clean and free from moisture. Solvent cement that conforms to ASTM D 2235 shall be applied to all joint surfaces. The joint shall be made while the cement is wet. Joints shall be made in - accordance with ASTM D 2235 Solvent - cement joints shall be permitted above or below ground. 605.10.3 Threaded joints. Threads shall conform to ASME B1.20.1 Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe. Approved thread lubricant or tape shall be applied on the male threads only 605.11 Asbestos- cement. Joints between asbestos - cement pipe or fittings shall be made with a sleeve coupling of the same composition as the pipe, sealed with an elastomeric ring con- forming to ASTM D 1869 605.12 Brass. Joints between brass pipe or fittings shall com- ply with Sections 605 12.1 through 605 12.4 605.12.1 Brazed joints. All joint surfaces shall be cleaned. An.approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. 605.12.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 605.12.3 Threaded joints. Threads shall conform to ASME B1.20.1 Pipe -joint compound or tape shall be applied on the male threads only 605.12.4 Welded joints. All joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal. 605.13 Gray iron and ductile iron joints. Joints for gray and ductile iron pipe and fittings shall comply with AWWA C111 and shall be installed in accordance with the manufacturer's installation instructions. TABLE 605.13 LEAD DEPTH FOR CAULKED CAST -IRON PIPE PIPE SIZE (Inches) DEPTH OF LEAD (Inches) Up to 20 21/4 24, 30, 36 21/2 Larger than 36 3 For SI: 1 inch = 25.4 mm. 605.14 Copper pipe. Joints between copper or copper -alloy pipe or fittings shall comply with Sections 605 14 1 through 60514.5 605.14.1 Brazed joints. All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. 605.14.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 605.143 Soldered joints. Solder joints shall be made in accordance with the methods of ASTM B 828. All cut tube ends shall be reamed to the full inside diameter of the tube end. All joint surfaces shall be cleaned. A flux conforming to W5.10.2 — 605.17.2 ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. The joining of water supply piping shall be made with lead -free solder and fluxes. "Lead free" shall mean a chemical composition equal to or less than 0.2 percent lead. 605.14.4 Threaded joints. Threads shall conform to ASME 131.20.1 Pipe -joint compound or tape shall be applied on the male threads only 605.14.5 Welded joints. All joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal. 605.15 Copper tubing. Joints between copper or copper -alloy tubing or fittings shall comply with Sections 605 15 1 through 605 15 4 605.15.1 Brazed joints. All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. 605.15.2 Flared joints. Flared joints for water pipe shall be made by a tool designed for that operation. 605.153 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 605.15.4 Soldered joints. Solder joints shall be made in accordance with the methods of ASTM B 828. All cut tube ends shall be reamed to the full inside diameter of the tube end. All joint surfaces shall be cleaned. A flux conforming to ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. The joining of water supply piping shall be made with lead -free solders and fluxes. "Lead free" shall mean a chemical composition equal to or less than 0.2 percent lead. 605.16 CPVC plastic. Joints between CPVC plastic pipe or fit- tings shall comply with Sections 605 16.1 through 605 16.3 605.16.1 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 605.16.2 Solvent cementing. Joint surfaces shall be clean and free from moisture and an approved primer shall be applied. Solvent cement, orange in color and conforming to ASTM F 493, shall be applied to all joint surfaces. The joint shall be made while the cement is wet, and in accordance with ASTM D 2846 or ASTM F 493 Solvent- cement joints shall be permitted above or below ground. 605.163 Threaded joints. Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe, but the pressure rating of the pipe shall be reduced by 50 percent. Thread by socket molded fittings shall be permitted. Approved thread lubricant or tape shall be applied on the male threads only 605.17 Steel. Joints between galvanized steel pipe or fittings shall comply with Sections 605 17 1 and 605 17.2. 605.17.1 Threaded joints. Threads shall conform to ASME B1.20.1 Pipe -joint compound or tape shall be applied on the male threads only 605.17.2 Mechanical joints. Joints shall be made with an approved elastomeric seal. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 1997 INTERNATIONAL PLUMBING CODE 39 805.18-606.2 605.18 Polybutylene plastic. Joints between polybutylene plastic pipe and tubing or fittings shall comply with Sections 605.18.1 through 605 18.3 605.18.1 Flared joints. Flared pipe ends shall be made by a fool designed for that operation. 605.18.2 Heat - fusion joints. Joints shall be of the socket - fusion or butt - fusion type. Joint surfaces shall be clean and free from moisture. All joint surfaces shall be heated to melt temperature and joined. The joint shall be undisturbed until cool. Joints shall be made in accordance with ASTM D 2657, ASTM D 3309 or CSA CAN3- B137.8. 605.183 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. Metallic lock rings employed with insert fittings as described in ASTM D 3309 or CSA CAN3- B137.8 shall be installed in accordance with the manufacturer's instructions. 605.19 Polyethylene plastic. Joints between polyethylene plastic pipe and tubing or fittings shall comply with Sections 605.191 through 605 19 4 605.19.1 Flared joints. Flared joints shall be permitted where so indicated by the pipe manufacturer. Flared joints shall be made by a tool designed for that operation. 605.19.2 Heat - fusion joints. Joint surfaces shall be clean and free from moisture. All joint surfaces shall be heated to melt temperature and joined. The joint shall be undisturbed until cool. Joints shall be made in accordance with ASTM D 2657 605.193 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 605.19.4 Installation. Polyethylene pipe shall be cut square, with a cutter designed for plastic pipe. Except where joined by heat fusion, pipe ends shall be chamfered to remove sharp edges. Kinked pipe shall not be installed. The minimum pipe bending radius shall not be less than 30 pipe diameters, or the minimum coil radius, whichever is greater. Piping shall not be bent beyond straightening of the curvature of the coil. Bends shall not be permitted within 10 pipe diameters of any fitting or valve. Stiffener inserts installed with compression - type couplings and fittings shall not extend beyond the clamp or nut of the coupling or fitting. 605.20 PVC plastic. Joints between PVC plastic pipe or fit- tings shall comply with Sections 605.20.1 through 605.20.3 605.20.1 Mechanical joints. Mechanical joints on water pipe shall be made with an elastomeric seal conforming to ASTM D 3139 Mechanical joints shall not be installed in above - ground systems unless otherwise approved. Joints shall be installed in accordance with the manufacturer's instructions. 605.20.2 Solvent cementing. Joint surfaces shall be clean and free from moisture. A purple primer that conforms to ASTM F 656 shall be applied. Solvent cement not purple in color and conforming to ASTM D 2564 or CSA CAN /CSA- B137.3 shall be applied to all joint surfaces. The joint shall be made while the cement is wet and shall be in accordance with ASTM D 2855 Solvent- cement joints shall be per- mitted above or below ground. 605.20.3 Threaded joints. Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe, but the pressure rating of the pipe shall be reduced by 50 percent. Thread by socket molded fittings shall be permitted. Approved thread lubricant or tape shall be applied on the male threads only 605.21 Joints between different materials. Joints between different piping materials shall be made with a mechanical joint of the compression or mechanical- sealing type, or as permitted in Sections 605.21.1 and 605.21.2. Connectors or adapters shall have an elastomeric seal conforming to ASTM D 1869 or ASTM F 477 Joints shall be installed in accordance with the manufacturer's instructions. 605.21.1 Copper or copper -alloy tubing to galvanized steel pipe. Joints between copper or copper -alloy tubing and galvanized steel pipe shall be made with a brass converter fit- ting or dielectric fitting. The copper tubing shall be soldered to the fitting in an approved manner, and the fitting shall be screwed to the threaded pipe. 605.21.2 Plastic pipe or tubing to other piping material. Joints between different grades of plastic pipe or between plastic pipe and other piping material shall be made with an approved adapter fitting. N SECTION 606 INSTALLATION OF THE BUILDING WATER DISTRIBUTION SYSTEM 606.1 Location of full -open valves. Full -open valves shall be installed in the following locations. 1 On the building water service pipe from the public water supply near the curb 2. On the water distribution supply pipe at the entrance into the structure. 3 On the discharge side of every water meter. 4 On the base of every water riser pipe in occupancies other than multiple family residential occupancies that are two stories or less in height and in one- and two- family resi- dential occupancies. 5 On the top of every water down -feed pipe in occupancies other than one- and two- family residential occupancies. 6. On the entrance to every water supply pipe to a dwelling unit, except where supplying a single fixture equipped with individual stops. 7 On the water supply pipe to a gravity or pressurized water tank. 8. On the water supply pipe to every water heater. 606.2 Location of shutoff valves. Shutoff valves shall be installed in the following locations: 1 On the fixture supply to each plumbing fixture in other than one- and two- family and multiple family residential occupancies, and other than in individual guestrooms that 40 1997 INTERNATIONAL PLUMBING CODE are provided with unit shutoff valves in hotels, motels, boarding houses and similar occupancies. 2. On the water supply pipe to each sillcock. On the water supply pipe to each appliance or mechanical equipment. 6063 Access to valves. Access shall be provided to all required full -open valves and shutoff valves. 606.4 Valve identification. Service and hose bibb valves shall be identified. All other valves installed in locations that are not adjacent to the fixture or appliance shall be identified, indicat- ing the fixture or appliance served. 606.5 Water pressure booster systems. Water pressure booster systems shall be provided as required by Sections 606.5 1 through 606.5 10. 606.5.1 Water pressure booster systems required. Where the water pressure in the public water main or individual water supply system is insufficient to supply the minimum pressures and quantities specified in this code, the supply shall be supplemented by an elevated water tank, a hydro - pneumatic .pressure booster system or a water pressure booster pump installed in accordance with Section 606.5.5 606.5.2 Support. All water supply tanks shall be supported in accordance with the building code. 606.5.3 Covers. All water supply tanks shall be covered to keep out unauthorized persons, dirt and vermin. The covers of gravity tanks shall be vented with a return bend vent pipe with an area not less than the area of the down -feed riser pipe, and the vent shall be screened with a corrosion- resistant screen of not less than 16 by 20 mesh per inch (630 by 787 mesh per m). 606.5.4 Overflows for water supply tanks. Each gravity or suction water supply tank shall be provided with an overflow with a diameter not less than that shown in Table 606.5 4 The overflow outlet shall discharge above and within not less than 6 inches (152 mm) of a roof or roof drain, floor or floor drain, or over an open water - supplied fixture. The over- flow outlet shall be covered with a corrosion- resistant screen of not less than 16 by 20 mesh per inch (630 by 787 mesh per m) and by 1/4 -inch (6.4 mm) hardware cloth or shall terminate in a horizontal angle seat check valve. Drainage from overflow pipes shall be directed so as not to freeze on roof walks. 606.5.5 Low- pressure cutoff required on booster pumps. A low- pressure cutoff shall be installed on all booster pumps in a water pressure booster system to prevent creation of a vacuum or negative pressure on the suction side of the pump when a positive pressure of 10 psi (68.94 kPa) or less occurs on the suction side of the pump. 606.5.6 Potable water inlet control and location. Potable water inlets to gravity tanks shall be controlled by a ball cock or other automatic supply valve installed so as to prevent the tank from overflowing. The inlet shall be terminated so as to provide an air gap not less than 4 inches (102 mm) above the overflow 606.3-606.6 TABLE 606.5.4 SIZES FOR OVERFLOW PIPES FOR WATER SUPPLY TANKS MAXIMUM CAPACITY OF WATER SUPPLY LINE TO TANK (gpm) DIAMETER OF OVERFLOW PIPE (Inches) 0 -50 2 50-150 21/2 150-200 3 200-400 4 400-700 5 700-1,000 6 Over 1,000 8 For SI: 1 inch = 25.4 mm, 1 gpm = 3.785 Um. 606.5.7 Tank drain pipes. A valved pipe shall be provided at the lowest point of each tank to permit emptying of the tank. The tank drain pipe shall discharge as required for overflow pipes and shall not be smaller in size than specified in Table 606.5 7 TABLE 606.5.7 SIZE OF DRAIN PIPES FOR WATER TANKS TANK CAPACITY (gallons) DRAIN PIPE (Inches) Up to 750 1 751 to 1,500 11 /2 1,501 to 3,000 2 3,001 to 5,000 21/2 F'::-5,001 to 7,500 -:Over 3 7,500 4 For SI: 1 gallon = 3.7851,, 1 inch = 25.4 mm. 606.5.8 Prohibited location of potable supply tanks. Pota- ble water gravity tanks or manholes of potable water pres- sure tanks shall not be located directly under any soil or waste piping or any source of contamination. 606.5.9 Pressure tanks, vacuum relief. All water pressure tanks shall be provided with a vacuum relief valve at the top of the tank that will operate up to a maximum water pressure of 200 psi (1380 kPa) and up to a maximum temperature of 200 °F (93 °C). The minimum size of such vacuum relief valve shall be 1/2 inch (12.7 mm). Exception: This section shall not apply to pressurized I captive air diaphragm/bladder tanks. 606.5.10 Pressure relief for tanks. Every pressure tank in a hydropneumatic pressure booster system shall be protected with a pressure relief valve. The pressure relief valve shall be set at a maximum pressure equal to the rating of the tank. The relief valve shall be installed on the supply pipe to the tank or on the tank. The relief valve shall discharge by gravity to a safe place of disposal. 606.6 Water supply system test. Upon completion of a section of or the entire water supply system, the system, or portion completed, shall be tested in accordance with Section 312. 1997 INTERNATIONAL PLUMBING CODE 41 607-608.9 SECTION 607 HOT WATER SUPPLY SYSTEM 607.1 Where required. In occupied structures, hot water shall be supplied to all plumbing fixtures and equipment utilized for bathing, washing, culinary purposes, cleansing, laundry or building maintenance. Exception: In nonresidential occupancies, hot water or tem- pered water shall be supplied for bathing and washing pur- poses. Tempered water shall be delivered from accessible hand - washing facilities. 607.2 Hot water supply temperature maintenance. Where the developed length of hot water piping from the source of hot water supply to the farthest fixture exceeds 100 feet (30 480 mm), the hot water supply system shall be provided with a method of maintaining the temperature of hot water to within 100 feet (30 480 mm) of the fixtures. The methods of maintain- ing the temperatures shall not expend more energy than required by a recirculation system. 607.2.1 Piping insulation. Piping in required return circula- tion systems shall be insulated to provide a thermal resis- tance, R, excluding film resistances, of R = [" 25 "(hr )(ft. 2)'F J / Btu For SI: R = I t; — to (0.0304) K m2 ] / W where t; — to is the design temperature differential between the water in the pipe and the surrounding air in °F Exception: Pipe insulation is not required where t; — to is 25 °F (14 °C) or less. 607.2.2 Pump operation. Where a circulating pump is installed on a return circulation hot water system, the pump shall be arranged to shut off automatically or to allow manual shut off when the hot water system is not in operation. 607.3 Thermal expansion control. A means of controlling increased pressure caused by thermal expansion shall be pro- vided where required in accordance with Sections 607.3 1 and 607.3.2. 607.3.1 Pressure reducing valve. For water service system sizes up to and including 2 inches (51 mm), a device for con- trolling pressure shall be installed where, because of thermal expansion, the pressure on the downstream side of a pressure reducing valve exceeds the main supply pressure. A pressure reducing valve with an integral bypass check valve or other device shall be installed to satisfy this requirement. 607.3.2 Backflow prevention device or check valve. Where a backflow prevention device, check valve or other device is installed on a water supply system utilizing storage water heating equipment such that thermal expansion causes an increase in pressure, a device for controlling pressure shall be installed. 607.4 Hot water supply to fixtures. The hot water supply to any fixture requiring hot water shall be installed on the left side of the fixture. SECTION 608 PROTECTION OF POTABLE WATER SUPPLY 608.1 General. A potable water supply system shall be designed, installed and maintained in such .a manner so as to prevent contamination from nonpotable liquids, solids or gases being introduced into the potable water supply through cross - connections or any other piping connections to the system. Backflow preventer applications shall conform to Table 608.1 608.2 Plumbing fixtures. The supply lines or fittings for every plumbing fixture shall be installed so as to prevent backflow 608.3 Devices, appurtenances, appliances and apparatus. All devices, appurtenances, appliances and apparatus intended to serve some special function, such as sterilization, distilla- tion, processing, cooling, or storage of ice or foods, and that connect to the water supply system, shall be provided with protection against backflow and contamination of the water supply system. Water pumps, filters, softeners, tanks and all other appliances and devices that handle or treat potable water shall be protected against contamination. 608.3.1 Special equipment, water supply protection. The water supply for hospital fixtures shall be protected against backflow with a reduced pressure principle backflow .pre - venter, an atmospheric or spill -proof vacuum breaker, or an air gap. Vacuum breakers for bedpan washer hoses shall not be located less than 5 feet (1524 mm) above the floor. Hose connections in health care or laboratory areas shall not be less than 6 feet (1829 mm) above the floor. 608.4 Water service piping. Water service piping shall be pro- tected in accordance with Sections 603.2 and 603.2.1 608.5 Chemicals and other substances. Chemicals and other substances that produce either toxic conditions, taste, odor or discoloration in a potable water system shall not be introduced into, or utilized in, such systems. 608.6 Cross - connection control. Cross - connections shall be ' prohibited, except where approved protective devices are installed. 608.6.1 Private water supplies. Cross - connections between a private water supply and a potable public supply shall be prohibited. 608.7 Stop -and -waste valves prohibited. Combination stop - and -waste valves or cocks shall not be installed underground. 608.8 Identification of potable and nonpotable water. In all buildings where two or more water distribution systems, one potable water and the other nonpotable water, are installed, each system shall be identified either by color marking or metal tags as required by ASME A13 1 608.9 Reutilization prohibited. Water utilized for the cooling of equipment or other processes shall not be returned to the potable water system. Such water shall be discharged into a drainage system through an air gap or shall be utilized for non - potable purposes. 42 1997 INTERNATIONAL PLUMBING CODE 608.10— 608.13.2 TABLE 808.1 APPLICATION FOR BACKFLOW PREVENTERS For SI: 1 inch = 25.4 mm. a Low hazard —See Pollution (Section 202). High hazard —See Contamination (Section 202). b See Backpressure (Section 202). See Backpressure, Low Head (Section 202). See Backsiphonage (Section 202). 608.10 Reuse of piping. Piping that has been utilized for any purpose other than conveying potable water shall not be uti- lized for conveying potable water. 608.11 Painting of water tanks. The interior surface of a pota- ble water tank shall not be lined, painted or repaired with any material that changes the taste, odor, color or potability of the water supply when the tank is placed in, or returned to, service. 608.12 Pumps and other appliances. Water pumps, filters, softeners, tanks and all other devices that handle or treat pota- ble water shall be protected against contamination. 608.13 Backflow protection. Means of protection against backflow shall be provided in accordance with Sections 608.13.1 through 608.13 7 608.13.1 Air gap. The minimum required air gap shall be measured vertically from the lowest end of a potable water outlet to the flood level rim of the fixture or receptacle into which such potable water outlet discharges. 608.13.2 Reduced pressure principle backflow prevent - ers. Reduced pressure principle backflow preventers shall 1997 INTERNATIONAL PLUMBING CODE 43 DEGREE OF DEVICE HAZARD° APPUCATIONb APPLICABLE STANDARDS Air Gap High or low Backsiphonage or backpressure ASME A112.1.2 hazard Antisiphon -type Water Closet Flush Tank Low hazard Backsiphonage only ASSE 1002 Ball Cock CSA CAN /CSA -B125 Reduced Pressure Principle Backflow Preventer High or low Backpressure or backsiphonage ASSE 1013 hazard Sizes 3/8" - 16" AWWA C511 CSA CAN /CSA -B64 4 Reduced Pressure Detector Assembly Backflow High or low Backsiphonage or backpressure ASSE 1047 Preventer hazard (Fire sprinkler systems) Double Check Backflow Prevention Assembly Low hazard Backpressure or backsiphonage ASSE 1015 Sizes 3/8" -16" AWWA C510 Double Check Detector Assembly Backflow Low hazard Backpressure or backsiphonage ASSE 1048 Preventer (Fire sprinkler systems) Sizes 11 /2" -16" Dual- check - valve -type Backflow Preventer Low hazard Backpressure or backsiphonage ASSE 1024 Sizes 114" - 1" Backflow Preventer with Intermediate Low hazard Backpressure or backsiphonage ASSE 1012 Atmospheric Vents Sizes 1/4" - 3/4" CSA CAN /CSA -B64.3 Dual- check - valve -type Backflow Preventer for Low hazard Backpressure or backsiphonage ASSE 1032 Carbonated Beverage Dispensers/Post Mix Sizes 1/411- 3/8" Type Pipe - applied Atmospheric -type Vacuum High or low Backsiphonage only ASSE 1001 Breaker hazard Sizes 1/4" - 4" CSA CAN /CSA -B641 1 Pressure Vacuum Breaker Assembly High or low Backsiphonage only ASSE 1020 hazard Sizes 1/2" - 2" Hose - connection Vacuum Breaker High or low Low head backpressure or ASSE 1011 hazard backsiphonage CSA CAN /CSA -B64.2 Sizes i /2„% 3/4% 1„ Vacuum Breaker Wall Hydrants, Frost - resistant, High or low Low head backpressure or ASSE 1019 Automatic Draining Type hazard backsiphonage CSA CAN /CSA- B64.2.2 Sizes /4 ", 1" Laboratory Faucet Backflow Preventer High or low Low head backpressure and ASSE 1035 hazard backsiphonage CSA B64 7 Hose Connection Backflow Preventer High or low Low head backpressure, rated ASSE 1052 hazard working pressure backpressure or backsiphonage f Sizes /2 Spill -proof vacuum breaker High or low Backsiphonage only ASSE 1056 hazard Sizes 1/4 "- 2" For SI: 1 inch = 25.4 mm. a Low hazard —See Pollution (Section 202). High hazard —See Contamination (Section 202). b See Backpressure (Section 202). See Backpressure, Low Head (Section 202). See Backsiphonage (Section 202). 608.10 Reuse of piping. Piping that has been utilized for any purpose other than conveying potable water shall not be uti- lized for conveying potable water. 608.11 Painting of water tanks. The interior surface of a pota- ble water tank shall not be lined, painted or repaired with any material that changes the taste, odor, color or potability of the water supply when the tank is placed in, or returned to, service. 608.12 Pumps and other appliances. Water pumps, filters, softeners, tanks and all other devices that handle or treat pota- ble water shall be protected against contamination. 608.13 Backflow protection. Means of protection against backflow shall be provided in accordance with Sections 608.13.1 through 608.13 7 608.13.1 Air gap. The minimum required air gap shall be measured vertically from the lowest end of a potable water outlet to the flood level rim of the fixture or receptacle into which such potable water outlet discharges. 608.13.2 Reduced pressure principle backflow prevent - ers. Reduced pressure principle backflow preventers shall 1997 INTERNATIONAL PLUMBING CODE 43 608.13.3-608.15.4 conform to ASSE 1013, AWWA C511 or CSA CAN /CSA- B64 4 These devices shall be permitted to be installed where subject to continuous pressure conditions. The relief open- ing shall discharge by air gap and shall be prevented from being submerged. 608.133 Backflow preventer with intermediate atmo- spheric vent. Backflow preventers with intermediate atmo- spheric vents shall conform to ASSE 1012 or CSA CAN/ CSA -B64.3 These devices shall be permitted to be installed where subject to continuous pressure conditions. The relief opening shall discharge by air gap and shall be prevented from being submerged. 608.13.4 Barometric loop. Barometric loops shall precede the point of connection and shall extend vertically to a height of 35 feet (10 668 mm). A barometric loop shall only be uti- lized as an atmospheric -type or pressure -type vacuum breaker. 608.13.5 Pressure-type vacuum breakers. Pressure -type vacuum breakers shall conform to ASSE 1020 for outdoor use. These devices are designed for installation under con- tinuous- pressure conditions when the critical level is installed at the required height. 608.13.6 Atmospheric -type vacuum breakers. Pipe - applied atmospheric -type vacuum breakers shall conform to ASSE 1001 or CSA CAN /CSA -B64 11 Hose - connection vacuum breakers shall conform to ASSE 1011, CSA CAN/ CSA- B64.2, ASSE 1019, CSA CAN /CSA- B64.2.2, ASSE 1035, CSA B64 7 or ASSE 1052. These devices shall oper- ate under normal atmospheric pressure when the critical level is installed at the required height. 608.13.7 Double check -valve assemblies. Double check - valve assemblies shall conform to ASSE 1015 or AWWA C510. Double- detector check -valve assemblies shall con- form to ASSE 1048. These devices shall be capable of oper- ating under continuous pressure conditions. 608.13.8 Spill -proof vacuum breakers. Spill -proof vac- uum breakers (SVB) shall conform to ASSE 1056. These devices are designed for installation under continuous - pressure conditions when the critical level is installed at the required height. 608.14 Location of backflow preventers. Access shall be pro- vided to backflow preventers as specified by the installation in- structions of the approved manufacturer. 608.15 Protection of potable water outlets. All potable water openings and outlets shall be protected against backflow in accordance with Section 608.15 1, Section 608.15.2, Section 608.15.3, Section 608.15 4, Section 608.15 4 1 or Section 608.15 4.2. 608.15.1 Protection by air gap. Openings and outlets shall be protected by an air gap between the opening and the fix- ture flood level rim as specified in Table 608.15 1 Openings and outlets equipped for hose connection shall be protected by means other than an air gap. 608.15.2 Protection by a reduced pressure principle backflow preventer. Openings and outlets shall be pro- tected by a reduced pressure principle backflow preventer. 608.15.3 Protection by a backflow preventer with inter- mediate atmospheric vent. Openings and outlets shall be protected by a backflow preventer with an intermediate atmospheric vent. 608.15.4 Protection by a vacuum breaker. Openings and outlets shall be protected by atmospheric -type or pressure - type vacuum breakers. The critical level of the vacuum breaker shall be set a minimum of 6 inches (152 mm) above the flood level rim of the fixture or device. Ball cocks shall be set in accordance with Section 425.3 1. Vacuum breakers shall not be installed under exhaust hoods or similar loca- tions that will contain toxic fumes or vapors. Pipe - applied vacuum breakers shall be installed not less than 6 inches (152 mm) above the flood level rim of the fixture, receptor or device served. TABLE 608.15.1 MINIMUM REQUIRED AIR GAPS For SI: 1 inch = 25 4 mm. Applicable where walls or obstructions are spaced from the nearest inside edge of the spout opening a distance greater than three times the diameter of the effec tive opening for a single wall, or a distance greater than four times the diameter of the effective opening for two intersecting walls. 44 1997 INTERNATIONAL PLUMBING CODE MINIMUM AIR GAP FIXTURE Away from a walla (Inches) Close to a wall (Inches) Lavatories and other fixtures with effective opening not 1 11/2 greater than 1/2 inch in diameter Sink, laundry trays, gooseneck back faucets and other 11/2 21/2 fixtures with effective openings not greater than 3/4 inch in diameter Over -rim bath fillers and other fixtures with effective 2 3 openings not greater than 1 inch in diameter Drinking water fountains, single orifice not greater than 7/16 inch in diameter or multiple orifices with a total area 1 11/2 of 0.150 square inch (area of circle 7/16 inch in diameter) Effective openings greater than 1 inch Two times the diameter Three times the diameter of the effective opening of the effective opening For SI: 1 inch = 25 4 mm. Applicable where walls or obstructions are spaced from the nearest inside edge of the spout opening a distance greater than three times the diameter of the effec tive opening for a single wall, or a distance greater than four times the diameter of the effective opening for two intersecting walls. 44 1997 INTERNATIONAL PLUMBING CODE 608.15.4.1 Deck- mounted and integral vacuum break- ers. All pull -out spout -type faucets shall be in compliance with CSA CAN /CSA -B125 and have an integral vacuum breaker or vent to atmosphere in their design or shall .require a dedicated deck- or wall - mounted vacuum breaker. Approved deck - mounted or equipment- mounted vacuum breakers and faucets with integral atmospheric or spill -proof vacuum breakers shall be installed in accord- ance with the manufacturer's instructions and the require- ments for labeling with the critical level not less than 1 inch (25 4 mm) above the flood level rim. 608.15.4.2 Hose connections. Sillcocks, hose bibbs, wall hydrants and other openings with a hose connection shall be protected by an atmospheric -type or pressure -type vac- uum breaker or a permanently attached hose connection vacuum breaker. Exceptions: 1. This section shall not apply to water heater and boiler drain valves that are provided with hose connection threads and that are intended only for tank or vessel draining. 2. This section shall not apply to water supply valves intended for connection of clothes wash- ing machines where backflow prevention is otherwise provided or is integral with the machine. 608.16 Connections to the potable water system. Connec- tions to the potable water system shall conform to Sections 608.16.1 through 608.16.6. 608.16.1 Beverage dispensers. The water supply connec- tion to carbonated beverage dispensers shall be protected against backflow by a double check valve with an intermedi- ate atmospheric vent conforming to ASSE 1012 or ASSE 1022. The double check valve with an intermediate atmo- spheric vent device and the piping downstream therefrom shall not be affected by carbon dioxide gas. Secondary protection in the form of a dual check valve conforming to ASSE 1032 shall be installed on the beverage- dispensing equipment. 608.16.2 Connections to boilers. The potable supply to the boiler shall be equipped with a backflow preventer with an intermediate atmospheric vent complying with ASSE 1012 or CSA CAN /CSA 1364.3 Where conditioning chemicals are introduced into the system, the potable water connection shall be protected by an air gap or a reduced pressure princi- ple backflow preventer, complying with ASSE 1013, CSA CAN /CSA B64 4 or AWWA C511 608.16.3 Heat exchangers. Heat exchangers utilizing an essentially toxic transfer fluid shall be separated from the potable water by double -wall construction. An air gap open to the atmosphere shall be provided between the two walls. Heat exchangers utilizing an essentially nontoxic transfer fluid shall be permitted to be of single -wall construction. 608.16.4 Connections to automatic fire sprinkler systems and standpipe systems. The potable water supply to auto- matic fire sprinkler and standpipe systems shall be protected 608.15.4.1 — 608.17 1 against backflow by a double check -valve assembly or a reduced pressure principle backflow preventer Exceptions: 1 Where systems are installed as a portion of the water distribution system in accordance with the require- ments of this code and are not provided with a fire department connection, isolation of the water supply system shall not be required. 2. Isolation of the water distribution system is not required for deluge, preaction or dry pipe systems. 608.16.4.1 Additives or nonpotable source. Where sys- tems contain chemical additives or antifreeze, or where systems are connected to a nonpotable secondary water supply, the potable water supply shall be protected against backflow by a reduced pressure principle backflow pre - venter. Where chemical additives or antifreeze are added to only a portion of an automatic fire sprinkler or stand- pipe system, the reduced pressure principle backflow pre - venter shall be permitted to be located so as to isolate that portion of the system. 608.16.5 Connections to lawn irrigation systems. The potable water supply to lawn irrigation systems shall be pro- tected against backflow by an atmospheric -type vacuum breaker, a pressure -type vacuum breaker or a reduced pres- sure principle backflow preventer. A valve shall not be installed downstream from an atmospheric vacuum breaker. Where chemicals are introduced into the system, the potable water supply shall be protected against backflow by a reduced pressure principle backflow preventer. 608.16.6 Connections subject to back pressure. Where a potable water connection is made to a nonpotable line, fix- ture, tank, vat, pump or other equipment subject to back pres- sure, the potable water connection shall be protected by a reduced pressure principle backflow preventer. 608.16.7 Chemical dispensers. Where chemical dispensers connect to the water distribution system, the water supply system shall be protected against backflow in accordance with Section 608.13 1, Section 608.13.2, Section 608.13.3, Section 608.13.5, Section 608.13.6 or Section 608.13.8. 608.16.8 Portable cleaning equipment. Where the portable cleaning equipment connects to the water distribution sys- tem, the water supply system shall be protected against back- flow in accordance with Section 608.13 1, Section 608.13.2, Section 608.13.3, Section 608.13 7 or Section 608.13.8. 608.16.9 Dental pump equipment. Where dental pumping equipment connects to the water distribution system, the water supply system shall be protected against backflow in accordance with Section 608.13 1, Section 608.13.5, Sec- tion 608.13.6 or Section 608.13.8. 608.17 Protection of individual water supplies. An individ- ual water supply shall be located and constructed so as to be safeguarded against contamination in accordance with Sec- tions 608.17 1 through 608.17.8. 608.17.1 Well locations. A potable ground water source or pump suction line shall not be located closer to potential sources of contamination than the distances shown in Table 1997 INTERNATIONAL PLUMBING CODE 45 608.17.2 —609.6 608.17 1 In the event the underlying rock structure is lime- stone or fragmented shale, the local or state health depart- ment shall be consulted on well site location. The distances in Table 608.17 1 constitute minimum separation and shall be increased in areas of creviced rock or limestone, or where the direction of movement of the ground water is from sources of contamination toward the well. TABLE 608.17 1 DISTANCE FROM SOURCES OF CONTAMINATION TO PRIVATE WATER SUPPLIES AND PUMP SUCTION LINES SOURCE OF CONTAMINATION DISTANCE (feet) Barnyard 100 Farm silo 25 Pasture F 100 Pumphouse floor drain of cast iron draining to ground surface 2 Seepage pits 50 Septic tank 25 Sewer 10 Subsurface disposal fields 50 Subsurface pits 50 For SI: 1 foot = 304.8 mm. 608.17.2 Elevation. Well sites shall be positively drained and shall be at higher elevations than potential sources of contamination. 608.17.3 Depth. Private potable well supplies shall not be developed from a water table less than 10 feet (3048 mm) below the ground surface. 608.17.4 Water -tight casings. Each well shall be provided with a water -tight casing to a minimum distance of 10 feet (3048 mm) below the ground surface. All casings shall extend at least 6 inches (152 mm) above the well platform. The casing shall be large enough to permit installation of a separate drop pipe. Casings shall be sealed at the bottom in an impermeable stratum or extend several feet into the water- bearing stratum. 608.17.5 Drilled or driven well casings. Drilled or driven well casings shall be of steel or other approved material. Where drilled wells extend into a rock formation, the well casing shall extend to and set firmly in the formation. The annular space between the earth and the outside of the casing shall be filled with cement grout to a minimum distance of 10 feet (3048 mm) below the ground surface. In an instance of casing to rock installation, the grout shall extend to the rock surface. 608.17.6 Dug or bored well casings. Dug or bored well cas- ings shall be of water -tight concrete, tile, or galvanized or corrugated metal pipe to a minimum distance of 10 feet (3048 mm) below the ground surface. Where the water table is more than 10 feet (3048 mm) below the ground surface, the water -tight casing shall extend below the table surface. Well casings for dug wells or bored wells constructed with sections of concrete, tile, or galvanized or corrugated metal pipe shall be surrounded by 6 inches (152 mm) of grout poured into the hole between the outside of the casing and the ground to a minimum depth of 10 feet (3048 mm). 608.17 7 Cover. Every potable water well shall be equipped with an overlapping water -tight cover at the top of the casing well or pipe sleeve such that contaminated water or other substances are prevented from entering the well through the annular opening at the top of the well casing, wall or pipe sleeve. Covers shall extend downward at least 2 inches (51 mm) over the outside of the well casing or wall. A dug well cover shall be provided with a pipe sleeve permitting the withdrawal of the pump suction pipe, cylinder or jet body without disturbing the cover. Where pump sections or dis- charge pipes enter or leave a well through the side of the cas- ing, the circle of contact shall be water tight. 608.17.8 Drainage. All potable water wells and springs shall be constructed such that surface drainage will be diverted away from the well or spring. SECTION 609 HEALTH CARE PLUMBING 609.1 Scope. This section shall govern those aspects of health care plumbing systems that differ from plumbing systems in other structures. Health care plumbing systems shall conform to the requirements of this section in addition to the other requirements of this code. The provisions of this section shall apply to the special devices and equipment installed and main- tained in the following occupancies: nursing homes, homes for the aged, orphanages, infirmaries, first aid stations, psychiatric facilities, clinics, professional offices of dentists and doctors, mortuaries, educational facilities, surgery, dentistry, research and testing laboratories, establishments manufacturing phar- maceutical drugs and medicines, and other structures with sim- ilar apparatus and equipment classified as plumbing. 609.2 Water service. All hospitals shall have two water service pipes installed in such a manner so as to minimize the potential for an interruption of the supply of water in the event of a water main or water service pipe failure. 6093 Hot water. Hot water shall be provided to supply all of the hospital fixture, kitchen and laundry requirements. Special fixtures and equipment shall have hot water supplied at a tem- perature specified by the manufacturer. The hot water system shall be installed in accordance with Section 607 609.4 Vacuum breaker installation. Vacuum breakers shall be installed a minimum of 6 inches (152 mm) above the flood level rim of the fixture or device in accordance with Section 608. The flood level rim of hose connections shall be the maxi- mum height at which any hose is utilized. 609.5 Prohibited water closet and clinical sink supply. Jet- or water - supplied orifices, except those supplied by the flush connections, shall not be located in or connected with a water closet bowl or clinical, sink. This section shall not pro- hibit an approved bidet installation. 609.6 Clinical, hydrotherapeutic and radiological equip- ment. All clinical, hydrotherapeutic, radiological or any equip- ment that is supplied with water or that discharges to the waste system shall conform to the requirements of this section and Section 608. 46 1997 INTERNATIONAL PLUMBING CODE 609.7 —611.2 609.7 Condensate drain trap seal. A water supply shall be provided for cleaning, flushing and resealing the condensate trap, and the trap shall discharge through an air gap in accord- ance with Section 608. 609.8 Valve leakage diverter. Each water sterilizer filled with water through directly connected piping shall be equipped with an approved leakage diverter or bleed line on the water supply control valve to indicate and conduct any leakage of unsterile water away from the sterile zone. SECTION 610 DISINFECTION OF POTABLE WATER SYSTEM 610.1 General. New or repaired potable water systems shall be purged of deleterious matter and disinfected prior to utilization. The method to be followed shall be that prescribed by the health authority or water purveyor having jurisdiction or, in the absence of a prescribed method, the procedure described in either AWWA C651 or AWWA C652, or as described in this section. This requirement shall apply to "on- site" or "in- plant" fabrication of a system or to a modular portion of a system. 1. The pipe system shall be flushed with clean, potable water until dirty water does not appear at the points of outlet. 2. The system or part thereof shall be filled with a water/ chlorine solution containing at least 50 parts per million (50 mg/L) of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours; or the sys- tem or part thereof shall be filled with a water /chlorine solution containing at least 200 parts per million (200 mg/L) of chlorine and allowed to stand for 3 hours. 3 Following the required standing time, the system shall be flushed with clean potable water until the chlorine is purged from the system. 4 The procedure shall be repeated where shown by a bacte- riological examination that contamination remains pres- ent in the system. SECTION 611 WATER TREATMENT UNITS 611.1 Design. Drinking water treatment units shall meet the requirements of NSF 42 and NSF 53 611.2 Reverse osmosis systems. Reverse osmosis drinking water treatment systems shall meet the requirements of NSF 58. Waste or discharge from reverse osmosis or other types of water treatment units shall enter the drainage system through an air gap. 1997 INTERNATIONAL PLUMBING CODE 47 48 1997 INTERNATIONAL PLUMBING CODE CHAPTER 7 SANITARY DRAINAGE SECTION 701 GENERAL 701.1 Scope. The provisions of this chapter shall govern the materials, design, construction and installation of sanitary drainage systems. 701.2 Sewer required. Every building in which plumbing fix- tures are installed and every premises having drainage piping shall be connected to a public sewer, where available, or an approved private sewage disposal system. 7013 Separate sewer connection. Every building having plumbing fixtures installed and intended for human habitation, occupancy or use on premises abutting on a street, alley or ease- ment in which there is a public sewer shall have a separate con - Inection with the sewer. Where located on the same lot, multiple buildings shall not be prohibited from connecting to a common 0 1 building sewer that connects to the public sewer. 701.4 Sewage treatment. Sewage or other waste from a plumbing system that is deleterious to surface or subsurface waters shall not be discharged into the ground or into any waterway unless it has first been rendered innocuous through subjection to an approved form of treatment. 701.5 Damage to drainage system or public sewer. Wastes detrimental to the public sewer system or detrimental to the functioning of the sewage- treatment plant shall be treated and disposed of in accordance with Section 1003 as directed by the code official. 701.6 Tests. The sanitary drainage system shall be tested in accordance with Section 312. 701.7 Connections. Direct connection of a steam exhaust, blowoff or drip pipe shall not be made with the building drain- age system. Waste water when discharged into the building drainage system shall be at a temperature not higher than 140 °F (60 °C). When higher temperatures exist, approved cooling methods shall be provided. 701.8 Engineered systems. Engineered sanitary drainage sys- tems shall conform to the provisions of Sections 105 4 and 714 SECTION 702 MATERIALS 702.1 Above -ground sanitary drainage and vent pipe. Above - ground soil, waste and vent pipe shall conform to one of the standards listed in Table 702.1. 702.2 Underground building sanitary drainage and vent pipe. Underground building sanitary drainage and vent pipe shall conform to one of the standards listed in Table 702.2. 7023 Building sewer pipe. Building sewer pipe shall conform to one of the standards listed in Table 702.2. 702.4 Fittings. Pipe fittings shall be approved for installation with the piping material installed and shall conform to the respective pipe standards or one of the standards listed in Table 702.4 702.5 Chemical waste system. A chemical waste system shall be completely separated from the sanitary drainage system. The chemical waste shall be treated in accordance with Section 803.2 before discharging to the sanitary drainage system. Sepa- rate drainage systems for chemical wastes and vent pipes shall be of an approved material that is resistant to corrosion and deg- radation for the concentrations of chemicals involved. TABLE 702.1 ABOVE - GROUND DRAINAGE AND VENT PIPE MATERIAL STANDARD Acrylonitrile butadiene styrene (ABS) plastic pipe ASTM D 2661, ASTM F 628, CSA B181.1 Brass pipe ASTM B 43 Cast -iron pipe ASTM A 74, CISPI 301, ASTM A 888 Copper or copper -alloy pipe ASTM B 42; ASTM B 302 Copper or copper -alloy tubing (Type K, L, M or DWV) ASTM B 75, ASTM B 88; ASTM B 251, ASTM B 306 Galvanized steel pipe ASTM A 53 Glass pipe ASTM C 1053 Polyolefin pipe CSA CAN /CSA- B181.3 Polyvinyl chloride (PVC) plastic pipe (Type DWV) ASTM D 2665, ASTM D 2949; ASTM F 891, CSA CAN /CSA- B181.2 TABLE 702.2 UNDERGROUND BUILDING DRAINAGE AND VENT PIPE MATERIAL STANDARD Acrylonitrile butadiene styrene ASTM D 2661, ASTM F 628; (ABS) plastic pipe CSA B181.1 Asbestos -cement pipe ASTM C 428 Cast -iron pipe ASTM A 74, CISPI 301, ASTM A 888 Copper or copper -alloy tubing ASTM B 75, ASTM B 88, (Type K or L) ASTM B 251 Polyolefin pipe CSA CAN /CSA- B181.3 Polyvinyl chloride (PVC) ASTM D 2665, ASTM D plastic pipe (Type DWV) 2949; ASTM F 891, CSA CAN/CSA-B181.2 1997 INTERNATIONAL PLUMBING CODE 49 4 703-705.2 TABLE 702.3 BUILDING SEWER PIPE MATERIAL STANDARD Acrylonittile butadiene styrene ASTM D 2661, ASTM D 2751, "(ABS) plastic pipe ASTM F 628 Asbestos- cement pipe ASTM C 428 Cast -iron pipe ASTM A 74, ASTM A 888; CISPI301 Concrete pipe ASTM C 14, ASTM C 76; CSA A257.1, CSA CAN /CSA A257.2 Copper or copper -alloy tubing ASTM B 75, ASTM B 88; (Type K or L) ASTM B 251 Polyvinyl chloride (PVC) ASTM D 2665, ASTM D plastic pipe (7Pype DWV, 2949; ASTM D 3034, SDR26, SDR35, SDR41, ASTM F 891, CSA B182.2; PS50 or PS100) CSA CAN /CSA- B182.4 Vitrified clay pipe ASTM C 4, ASTM C 700 TABLE 702.4 PIPE FITTINGS MATERIAL STANDARD Acrylonitrile butadiene styrene ASTM D 3311, CSA B181.1 (ABS) plastic 1/8 Cast iron ASME B 16.4, ASME B16.12; ASTM A 74, ASTM A 888; CISPI 301 Copper or copper alloy ASME B16.15, ASME B16.18, ASME B16.22; ASME B16.23, ASME B16.26; ASME B16.29; ASME B16.32 Glass ASTM C 1053 Gray iron and ductile iron AWWA C110 Malleable iron ASME 1316.3 Polyvinyl chloride (PVC) ASTM D 3311 plastic Plastic, general ASTM F 409 Steel ASME 1316.9; ASME B16.11, ASME B16.28 SECTION 703 BUILDING SEWER 703.1 Building sewer pipe near the water service. Where the building sewer is installed within 10 feet (3048 mm) of the water service, as provided for in Section 603.2, the building sewer pipe shall conform to one of the standards for ABS plas- tic pipe, cast -iron pipe, copper or copper -alloy tubing, or PVC plastic pipe listed in Table 702.3 703.2 Drainage pipe in filled ground. Where a building sewer or building drain is installed on filled or unstable ground, the drainage pipe shall conform to one of the standards for ABS plastic pipe, cast -iron pipe, copper or copper -alloy tubing, or PVC plastic pipe listed in Table 702.3 7033 Sanitary and storm sewers. Where separate systems of sanitary drainage and storm drainage are installed in the same property, the sanitary and storm building sewers or drains shall be permitted to be laid side by side in one trench. 703.4 Existing building sewers and drains. Existing building sewers and drains shall connect with new building sewer and drainage systems only where found by examination and test to conform to the new system in quality of material. The code offi- cial shall notify the owner to make the changes necessary to conform to this code. 703.5 Cleanouts on building sewers. Cleanouts on building sewers shall be located as set forth in Section 708. 4 SECTION 704 DRAINAGE PIPING INSTALLATION 704.1 Slope of horizontal drainage piping. Horizontal drain- age piping shall be installed in uniform alignment at uniform slopes. The minimum slope of a horizontal drainage pipe shall be in accordance with Table 704 1. TABLE 704.1 SLOPE OF HORIZONTAL DRAINAGE PIPE SIZE (Inches) MINIMUM SLOPE (Inch per foot) 21/2 or less 1/4 3 to 6 1/8 8 or larger 1/16 For SI: 1 inch = 25.4 mm, 1 inch per foot = 0.0833 mm/m. 704.2 Change in size. The size of the drainage piping shall not be reduced in size in the direction of the flow A 4 -inch by 3 -inch (102 mm by 76 mm) water closet connection shall not be considered as a reduction in size. 7043 Connections to offsets and bases of stacks. Horizontal branches shall connect to the bases of stacks at a point located not less than 10 pipe diameters downstream from the stack. Except as prohibited by Section 713.2, horizontal branches shall connect to horizontal stack offsets at a point located not less than 10 pipe diameters downstream from the upper stack. 704.4 Future fixtures. Drainage piping for future fixtures shall terminate with an approved cap or plug. 704.5 Dead ends. In the installation or removal of any part of a drainage system, dead ends shall be prohibited. Cleanout extensions and approved future fixture drainage piping shall not be considered as dead ends. SECTION 705 JOINTS 705.1 General. This section contains provisions applicable to joints specific to sanitary drainage piping. 705.2 ABS plastic. Joints between ABS plastic pipe or fittings shall comply with Sections 705.2.1 through 705.2.3 50 1997 INTERNATIONAL PLUMBING CODE I I 705.2.1 Mechanical joints. Mechanical joints on drainage pipes shall be made with an elastomeric seal conforming to ASTM C 1173, ASTM D 3212 or CSA CAN /CSA -B602. Mechanical joints shall only be installed in underground sys- tems unless otherwise approved. Joints shall be installed in accordance with the manufacturer's instructions. 705.2.2 Solvent cementing. Joint surfaces shall be clean and free from moisture. Solvent cement that conforms to ASTM D 2235 or CSA B181 1 shall be applied to all joint surfaces. The joint shall be made while the cement is wet. Joints shall be made in accordance with ASTM D 2235, ASTM D 2661, ASTM F 628 or CSA CAN /CSA -B181 1 Solvent -cement joints shall be permitted above or below ground. 705.2.3 Threaded joints. Threads shall conform to ASME B1.20.1 Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe. Approved thread lubricant or tape shall be applied on the male threads only 705.3 Asbestos- cement. Joints between asbestos - cement pipe or fittings shall be made with a sleeve coupling of the same composition as the pipe, sealed with an elastomeric ring con- forming to ASTM D 1869 705.4 Brass. Joints between brass pipe or fittings shall comply with Sections 705 4 1 through 705 4 4 705.4.1 Brazed joints. All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. 705.4.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 705.4.3 Threaded joints. Threads shall conform to ASME B1.20.1 Pipe -joint compound or tape shall be applied on the male threads only 705.4.4 Welded joints. All joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal. 705.5 Cast iron. Joints between cast -iron pipe or fittings shall comply with Sections 705.5 1 through 705.5.3 705.5.1 Caulked joints. Joints for hub and spigot pipe shall be firmly packed with oakum or hemp. Molten lead shall be poured in one operation to a depth of not less than 1 inch (25 mm). The lead shall not recede more than 1/8 inch (3.2 mm) below the rim of the hub and shall be caulked tight. Paint, varnish or other coatings shall not be permitted on the joint- ing material until after the joint has been tested and approved. Lead shall be run in one pouring and shall be caulked tight. Acid - resistant rope and acid -proof cement shall be permitted. 705.5.2 Compression gasket joints. Compression gaskets shall conform to ASTM C 564 Gaskets shall be compressed when the pipe is fully inserted. 705.5.3 Mechanical joint coupling. Mechanical joint cou- plings shall comply with CISPI 310 or ASTM C 1277 The elastomeric sealing sleeve shall conform to ASTM C 564 or CSA CAN /CSA -B602 and shall be provided with a center 705.2.1 — 705.10 stop. Mechanical joint couplings shall be installed in accord- ance with the manufacturer's installation instructions. 705.6 Concrete joints. Joints between concrete pipe or fittings shall be made with an elastomeric seal conforming to ASTM C 443, ASTM C 1173, CSA- A257.3 or CSA CAN /CSA -B602. 705.7 Copper pipe. Joints between copper or copper -alloy pipe or fittings shall comply with Sections 705 7 1 through 7057.5 705.7.1 Brazed joints. All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. 705.7.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 705.7.3 Soldered joints. Solder joints shall be made in accordance with the methods of ASTM B 828. All cut tube ends shall be reamed to the full inside diameter of the tube end. All joint surfaces shall be cleaned. A flux conforming to ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. 705.7.4 Threaded joints. Threads shall conform to ASME B1.20.1 Pipe -joint compound or tape shall be applied on the male threads only 705.7.5 Welded joints. All joint surfaces shall be cleaned. The joint shall be welded with an approved filler metal. 705.8 Copper tubing. Joints between copper or copper -alloy tubing or fittings shall comply with Sections 705.8.1 through 705.8.3 705.8.1 Brazed joints. All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. 705.8.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer's instructions. 705.8.3 Soldered joints. Solder joints shall be made in accordance with the methods of ASTM B 828. All cut tube ends shall be reamed to the full inside diameter of the tube end. All joint surfaces shall be cleaned. A flux conforming to ASTM B 813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B 32. 705.9 Borosilicate glass joints. Glass -to -glass connections shall be made with a bolted compression -type stainless steel (300 series) coupling with contoured acid - resistant elastomer compression ring and a fluorocarbon polymer inner seal ring; or with caulked joints in accordance with Section 705.9 1 705.9.1 Caulked joints. Every lead- caulked joint for hub and spigot soil pipe shall be firmly packed with oakum or hemp and filled with molten lead not less than 1 inch (25 mm) deep and not to extend more than 1/8 inch (3.2 mm) below the rim of the hub Paint, varnish or other coatings shall not be permitted on the jointing material until after the joint has been tested and approved. Lead shall be run in one pouring and shall be caulked tight. Acid - resistant rope and acid -proof cement shall be permitted. 705.10 Steel. Joints between galvanized steel pipe or fittings shall comply with Sections 705 10 1 and 705 10.2. 1997 INTERNATIONAL PLUMBING CODE 51 705.10.1 —705.17 705.10.1 Threaded joints. Threads shall conform to ASME 131.20.1 Pipe -joint compound or tape shall be applied on the male threads only 705.10.2 Mechanical joints. Joints shall be made with an :approved elastomeric seal. Mechanical joints shall be ,installed in accordance with the manufacturer's instructions. 705.11 Lead. Joints between lead pipe or fittings shall comply with Sections 705 it 1 and 705 11.2. 705.11.1 Burned. Burned joints shall be uniformly fused together into one continuous piece. The thickness of the joint shall be at least as thick as the lead being joined. The filler metal shall be of the same material as the pipe. 705.11.2 Wiped. Joints shall be fully wiped, with an exposed surface on each side of the joint not less than 3/4 inch (19 1 mm). The joint shall be at least 3/g inch (9.5 mm) thick at the thickest point. 705.12 PVC plastic. Joints between PVC plastic pipe or fit- tings shall comply with Sections 705 12.1 through 705 12.3 705.12.1 Mechanical joints. Mechanical joints on drainage pipe shall be made with an elastomeric seal conforming to ASTM C 1173, ASTM D 3212 or CSA CAN /CSA -B602. Mechanical joints shall not be installed in above - ground sys- tems, unless otherwise approved. Joints shall be installed in accordance with the manufacturer's instructions. 705.12.2 Solvent cementing. Joint surfaces shall be clean and free from moisture. A purple primer that conforms to ASTM F 656 shall be applied. Solvent cement not purple in color and conforming to ASTM D 2564, CSA CAN /CSA- 13137.3, CSA CAN /CSA - 13181.2 or CSA CAN /CSA- B182.1 shall be applied to all joint surfaces. The joint shall be made while the cement is wet and shall be in accordance with ASTM D 2855 Solvent- cement joints shall be per- mitted above or below ground. 705.12.3 Threaded joints. Threads shall conform to ASME 131.20.1 Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe. Approved thread lubricant or tape shall be applied on the male threads only 705.13 Vitrified clay Joints between vitrified clay pipe or fit- tings shall be made with an elastomeric seal conforming to ASTM C 425, ASTM C 1173 or CSA CAN /CSA -B602. 705.14 Joints between different materials. Joints between different piping materials shall be made with a mechanical joint of the compression or mechanical - sealing type, or as permitted in Sections 705 14 1 through 705 14.6. Connectors or adapters shall have an elastomeric seal conforming to ASTM C 425, ASTM C 443, ASTM C 564, ASTM C 1173, ASTM D 1869, ASTM F 477, CSA A257.3 or CSA CAN /CSA -B602. Joints shall be installed in accordance with the manufacturer's instructions. 705.14.1 Copper or copper -alloy tubing to cast -iron hub pipe. Joints between copper or copper -alloy tubing and cast - iron hub pipe shall be made with a brass ferrule or compres- sion joint. The copper or copper -alloy tubing shall be sol- dered to the ferrule in an approved manner, and the ferrule shall be joined to the cast -iron hub by a caulked joint or a mechanical compression joint. 705.14.2 Copper or copper -alloy tubing to galvanized steel pipe. Joints between copper or copper -alloy tubing and galvanized steel pipe shall be made with a brass converter fit- ting or dielectric fitting. The copper tubing shall be soldered to the fitting in an approved manner, and the fitting shall be screwed to the threaded pipe. 705.143 Cast -iron pipe to galvanized steel or brass pipe. Joints between cast -iron and galvanized steel or brass pipe shall be made by either caulked or threaded joints or with an approved adapter fitting. 705.14.4 Plastic pipe or tubing to other piping material. Joints between different grades of plastic pipe or between plastic pipe and other piping material shall be made with an approved adapter fitting. Joints between plastic pipe and cast -iron hub pipe shall be made by a caulked joint or a mechanical compression joint. 705.14.5 Lead pipe to other piping material. Joints between lead pipe and other piping material shall be made by a wiped joint to a caulking ferrule, soldering nipple, bushing or shall be made with an approved adapter fitting. 705.14.6 Borosilicate glass to other materials. Joints between glass pipe and other types of materials shall be made with adapters having a TFE seal and shall be installed in accordance with the manufacturer's instructions. 705.15 Drainage slip joints. Slip joints shall be made with an approved elastomeric gasket and shall only be installed on the trap outlet, trap inlet and within the trap seal. Slip joints installed in concealed locations shall conform to Section 405.8. 705.16 Caulking ferrules. Ferrules shall be of red brass and shall be in accordance with Table 705 16. 705.17 Soldering bushings. Soldering bushings shall be of red brass and shall be in accordance with Table 705 17 TABLE 705.16 CAULKING FERRULE SPECIFICATIONS PIPE SIZES (inches) INSIDE DIAMETER (Inches) LENGTH (inches) MINIMUM WEIGHT EACH 2 21/4 41/2 1 pound 3 31/4 41/2 1 pound 12 ounces 4 41/4 1 41/2 2 pounds 8 ounces For SI: 1 inch = 25 4 mm, 1 ounce = 28.35 g, 1 pound = 0.454 kg. TABLE 705.17 SOLDERING BUSHING SPECIFICATIONS PIPE SIZES (Inches) MINIMUM WEIGHT EACH 11/4 6 ounces 11/2 8 ounces 2 14 ounces 21/2 1 pound 6 ounces 3 2 pounds 4 3 pounds 8 ounces For SI: 1 inch = 25.4 mm, 1 ounce = 28.35 g, 1 pound = 0.454 kg. 52 1997 INTERNATIONAL PLUMBING CODE SECTION 706 CONNECTIONS BETWEEN DRAINAGE PIPING AND FIXTURES 706.1 Connections and changes in direction. All connections and changes in direction of the sanitary drainage system shall be made with approved drainage fittings. Connections between drainage piping and fixtures shall conform to Section 405 706.2 Obstructions. The fittings shall not have ledges, shoul- ders or reductions capable of retarding or obstructing flow in the piping. Threaded drainage pipe fittings shall be of the recessed drainage type. 706.3 Installation of fittings. Fittings shall be installed to guide sewage and waste in the direction of flow Change in direction shall be made by fittings installed in accordance with Table 706.3 Change in direction by combination fittings, side inlets or increasers shall be installed in accordance with Table 706.3 based on the pattern of flow created by the fitting. Double 'sanitary tee patterns shall not receive the discharge of back -to- back water closets and fixtures or appliances with pumping action discharge. SECTION 707 PROHIBITED JOINTS AND CONNECTIONS 707.1 Prohibited joints. The following types of joints and con- nections shall be prohibited. 1 Cement or concrete joints. 2. Mastic or hot -pour bituminous joints. 3 Joints made with fittings not approved for the ,specific installation. 4 Joints between different diameter pipes made with elasto- meric rolling 0-rings. 5 Solvent- cement joints between different types of plastic pipe. 6. Saddle -type fittings. TABLE 706.3 FITTINGS FOR CHANGE IN DIRECTION TYPE OF FITTING PATTERN CHANGE IN DIRECTION Horizontal to vertical Vertical to horizontal Horizontal to horizontal Sixteenth bend X X X Eighth bend X X X Sixth bend X X X Quarter bend X Xa Xa Short sweep X Xa,b Xa Long sweep X X X Sanitary tee X° Wye X X X Combination wye and eighth bend X X X For SI: 1 inch = 25 4 mm. a The fittings shall only be permitted for a 2 -inch or smaller fixture drain b Three inches and larger. c For a limitation on double sanitary tees, see Section 706.3. 706-708.4 SECTION 708 CLEANOUTS 708.1 Scope. This section shall govern the size, location, instal- lation and maintenance of drainage pipe cleanouts. 708.2 Cleanout plugs. Cleanout plugs shall be of brass, plastic or other approved materials. Brass cleanout plugs shall be uti- lized with metallic drain, waste and vent piping only, and shall conform to ASTM A 74 Plastic cleanout plugs shall conform to the requirements of Section 702.4 Plugs shall have raised square or countersunk square heads. Countersunk heads shall be installed where raised heads are a trip hazard. Cleanout plugs with borosilicate glass systems shall be of borosilicate glass. 708.3 Where required. Cleanouts shall be located in accord- ance with Sections 708.3 1 through 708.3.5 708.3.1 Horizontal drains within buildings. All horizontal drains shall be provided with cleanouts located not more than 100 feet (30 480 mm) apart. 708.3.2 Building sewers. All building sewers shall be pro- vided with cleanouts located not more than 100 feet (30 480 mm) apart measured from the upstream entrance of the I cleanout. 708.3.3 Changes of direction. Cleanouts shall be installed at each change of direction of the building drain or horizontal waste or soil lines greater than 45 degrees (0.79 rad). Where more than one change of direction occurs in a run of piping, only one cleanout shall be required for each 40 feet (12 192 mm) of developed length of the drainage piping. 708.3.4 Base of stack. A cleanout shall be provided at the base of each waste or soil stack. 708.3.5 Building drain and building sewer junction. There shall be a cleanout near the junction of the building drain and the building sewer. The cleanout shall be either inside or outside the building wall and shall be brought up to the finished ground level or to the basement floor level. An approved two -way cleanout is allowed to be used at this loca- tion to serve as a required cleanout for both the building drain and building sewer. The cleanout at the junction of the build- ing drain and building sewer shall not be required if the cleanout on a 3 -inch (76 mm) or larger diameter soil stack is located within a developed length of 10 feet (3048 mm) of the building drain and building sewer connection. 708.3.6 Manholes. Manholes serving a building drain shall have secured gas -tight covers and shall be located in accord- ance with Section 708.8. 708.4 Concealed piping. Cleanouts on concealed piping or piping under a floor slab or piping in a crawl space of less than 24 inches (610 mm) in height or a plenum shall be extended through and terminate flush with the finished wall, floor or ground surface or shall be extended to the outside of the build- ing. Cleanout plugs shall not be covered with cement, plaster or any other permanent finish material. Where it is necessary to conceal a cleanout or to terminate a cleanout in an area subject to vehicular traffic, the covering plate, access door or cleanout 1997 INTERNATIONAL PLUMBING CODE 53 M8.5 — 710.3 shall be of an approved type designed and installed for this pur- pose. 708.5 Opening direction. Every cleanout shall be installed to open to allow cleaning in the direction of the flow of the drain- age pipe or at right angles thereto. 708.6 Prohibited installation. Cleanout openings shall not be utilized for the installation of new fixtures or floor drains, except where approved and where another cleanout of equal access and capacity is provided. 708.7 Minimum size. Cleanouts shall be the same nominal size ' as the pipe they serve up to 4 inches (102 mm). For pipes larger than 4 inches (102 mm) nominal size, the minimum size of the cleanout shall be 4 inches (102 mm). Exception: "P" trap connections with slip joints or ground joint connections, or stack cleanouts that are no more than one pipe diameter smaller than the drain served, shall be approved. 708.8 Pipes 8 inches (203 mm) and larger nominal size. For building sewers 8 inches (203 mm) and larger, manholes shall be provided and located at each change in direction and at inter- vals of not more than 400 feet (121.9 m). Manholes and man- hole covers shall be of an approved type. 708.9 Clearances. Cleanouts on 6 -inch (153 mm) and smaller pipes shall be provided with a clearance of not less than 18 inches (457 mm) for rodding. Cleanouts on 8 -inch (203 mm) and larger pipes shall be provided with a clearance of not less than 36 inches (914 mm) for rodding. 708.10 Access. Access shall be provided to all cleanouts. SECTION 709 FIXTURE UNITS 709.1 Values for fixtures. Drainage fixture unit values as given in Table 709 1 designate the relative load weight of dif- ferent kinds of fixtures that shall be employed in estimating the total load carried by a soil or waste pipe, and shall be used in connection with Tables 710.1(1) and 710.1(2) of sizes for soil, waste and vent pipes for which the permissible load is given in terms of fixture units. 709.2 Fixtures not listed in Table 709.1. Fixtures not listed in Table 709 1 shall have a drainage fixture unit load based on the outlet size of the fixture in accordance with Table 709.2. The minimum trap size for unlisted fixtures shall be the size of the drainage outlet but not less than 11/4 inches (32 mm). 709.3 Values for continuous flow Drainage fixture unit val- ues for continuous flow into a drainage system shall be com- puted on the basis that 1 gpm (0.06 Us) of flow is equivalent to two fixture units. 709.4 Values for semicontinuous flow. Drainage fixture unit values for semicontinuous flow into a drainage system shall be computed on the basis that 1 gpm (0.06 Us) of flow is equiva- lent to one fixture unit. 709.5 Values for indirect waste receptor. The drainage fix- ture unit load of an indirect waste receptor receiving the dis- charge of indirectly connected fixtures shall be the sum of the drainage fixture unit values of the fixtures that discharge to the receptor. If this drainage fixture value is less than the indirect waste receptor drainage fixture value given in Table 709 1 or Table 709.2, then the values in the referenced tables shall be used. SECTION 710 DRAINAGE SYSTEM SIZING 710.1 Maximum fixture unit load. The maximum number of drainage fixture units connected to a given size of building sewer, building drain or horizontal branch of the building drain shall be determined using Table 710.1(1). The maximum num- ber of drainage fixture units connected to a given size of hori- zontal branch or vertical soil or waste stack shall be determined using Table 710.1(2). 710.1.1 Horizontal stack offsets. Horizontal stack offsets shall be sized as required for building drains in accordance with Table 710.1(1), except as required by Section 7114 710.1.2 Vertical stack offsets. Vertical stack offsets shall be sized as required for straight stacks in accordance with Table 710.1(2), except when required to be sized as a building drain in accordance with Section 711.1 1. 710.2 Future fixtures. When provision is made for the future installation of fixtures, those provided for shall be considered in determining the required sizes of drain pipes. Construction to provide for such future installation shall be terminated with an approved cap or plug. 7103 Underground drainage piping. Any portion of the drainage system installed underground or below a basement or cellar shall not be less than 2 inches (51 mm) in diameter 54 1997 INTERNATIONAL PLUMBING CODE f TABLE 709.1 — TABLE 709.2 TABLE 709.1 DRAINAGE FIXTURE UNITS FOR FIXTURES AND GROUPS FIXTURE TYPE DRAINAGE FIXTURE UNIT VALUE AS LOAD FACTORS MINIMUM SIZE OF TRAP (Inches) Automatic clothes washers, commerciala 3 2 Automatic clothes washers, residential 3 2 Bathroom group consisting of water closet, lavatory, bidet and bathtub or shower 6 — Bathtub (with or without overhead shower or whirlpool attachments) 2 11/2 Bidet 2 11/4 Combination sink and tray 2 11 /2 Dental lavatory 1 11/4 Dental unit or cuspidor 1 11/4 Dishwashing machine,c domestic 2 11/2 Drinking fountain 1/2 11/4 Emergency floor drain 0 2 Floor drains 2 2 Kitchen sink, domestic 2 11/2 Kitchen sink, domestic with food waste grinder and /or dishwasher 2 11/2 Laundry tray (1 or 2 compartments) 2 11/2 Lavatory 1 11/4 Shower compartment, domestic 2 2 Sink 2 11 /2 Urinal 4 Footnote d Urinal, 1 gallon per flush or less 2e Footnote d Wash sink (circular or multiple) each set of faucets 2 11/2 Water closet, flushometer tank, public or private 4e Footnote d Water closet, private installation 4 Footnote d Water closet, public installation 6 Footnote d For SI: 1 inch = 25.4 mm, 1 gallon = 3.785 L. a For traps larger than 3 inches, use Table 709.2. b A showerhead over a bathtub or whirlpool bathtub attachments does not increase the drainage fixture unit value. c See Sections 709.2 through 709 4 for methods of computing unit value of fixtures not listed in Table 709.1 or for rating of devices with intermittent flows. d Trap size shall be consistent with the fixture outlet size. e For the purpose of computing loads on building drains and sewers, water closets or urinals shall not be rated at a lower drainage fixture unit unless the lower values are confirmed by testing. TABLE 709.2 DRAINAGE FIXTURE UNITS FOR FIXTURE DRAINS OR TRAPS FIXTURE DRAIN OR TRAP SIZE (Inches) DRAINAGE FIXTURE UNIT VALUE 11/4 1 11 /2 2 2 3 21/2 4 3 5 4 6 For SI: 1 inch = 25 4 mm. 1997 INTERNATIONAL PLUMBING CODE 55 711— 911.4 TABLE 710.1(1) BUILDING DRAINS AND SEWERS µ DIAMETER OF PIPE (Inches) MAXIMUM NUMBER OF DRAINAGE FIXTURE UNITS CONNECTED TO ANY PORTION OF THE BUILDING DRAIN OR THE BUILDING SEWER, INCLUDING L`18RANCHES OF THE BUILDING'DRAIP01 Slope per foot t /ia Inch /a Inch 1/4 Inch 1/2 Inch 11/4 Totelfor stack greater than three branch intervals 11/2 1 1 '11/2 8 2 3 3 2 24 21/2 21 26 21/2 42 3 24 31 3 72 36 42 50 4 500 180 216 250 5 1,100 390 480 575 6 1,900 700 840 1,000 8 1,400 1,600 1,920 21300 10 2,500 2,900 3,500 4,200 12 2,900 4,600 5,600 6,700 15 7,000 8,300 10,000 12,000 For:SI: 1 inch= 25.4 mm, 1 inch per foot = 0.0833 mm/m. `e The'minimum size of any building drain serving a water closet shall be 3 inches. TABLE 710.1(2) HORIZONTAL FIXTURE BRANCHES AND STACKSa DIAMETER OF PIPE pnches) MAXIMUM NUMBER OF DRAINAGE FD(TURE UNITS (df+) Total for a horizontal branch Stacks Total discharge Into one branch Interval Totelfor stack of three branch Intervals or less Totelfor stack greater than three branch intervals 11/2 3 2 4 8 2 6 6 10 24 21/2 12 9 20 42 3 20 20 48 72 4 160 90 240 500 5 360 200 540 1,100 6 620 350 960 1,900 8 1,400 600 2,200 3,600 10 2,500 1,000 3,800 5,600 12 3,900 1,500 6,000 8,400 15 7,000 Footnote c Footnote c Footnote c For SI: 1 inch = 25.4 mm. a Does not include branches of the building drain. Refer to Table 710.1(1). b Stacks shall be sized based on the total accumulated connected load at each story or branch interval. As the total accumulated connected load decreases, stacks are permitted to be reduced in size. Stack diameters shall not be reduced to less than one -half of the diameter of the largest stack size required. Sizing load based on design criteria. SECTION 711 OFFSETS IN DRAINAGE PIPING IN BUILDINGS OF FIVE STORIES OR MORE - 711.1.Horizontal :branch .connections :above-or.below:verti- cal stack offsets. If a horizontal branch connects to the stack within 2 feet (610 mm) above or below a vertical stack offset, and the offset is located more than four branch intervals- below the top of the stack, -the offset shall be :vented in accordance with Section 915 711.1.1 Omission of vents for vertical stack offsets. Vents for vertical offsets required by Section 711.1 shall not be required where the stack and its offset are sized as a building drain [see Table 7-10.1(1), Column 51. 711.2 Horizontal branch connections to horizontal stack offsets. When a horizontal stack offset is located more than four branch intervals below the top of the stack, a horizontal branch shall not connect within the horizontal stack offset or within 2 feet (610 mm) above or below such offset. 711.3 Horizontal stack offsets. A stack with a horizontal off- set located more than four branch intervals below the top of the stack shall be vented in accordance with'Section 914 and :sized as follows: 1. The portion of the stack above the offset shall be sized as for a vertical stack based on the total number of drainage fixture units above the offset. 2. The offset shall be sized in accordance with Section 710.1.1 3. The portion of the stack below the offset shall be sized as for the offset or based on the total number of drainage fix- ture units on the entire stack, whichever is larger [see Table 710.1(2), Column 41. 711.3.1 Omission of vents for horizontal stack offsets. Vents for horizontal stack offsets required by Section 711.3 shall not be required where the stack and its offset is one pipe size larger than required for a building drain [see Table 710.1(1), Column 5] and the entire stack and offset is not less in cross - sectional area than that required for a straight stack plus the area of an offset vent as provided for in Section 915 Omission of offset vents in accordance with this section shall not constitute approval of horizontal branch connections within the offset or within 2 feet (610 mm) above or below the offset. 711.4 Offsets below lowest branch. Where a vertical offset occurs in a soil or waste stack below the lowest horizontal branch, change in diameter of the stack because of the offset shall not be required. If a horizontal offset occurs in a soil or waste stack below the lowest horizontal branch, the required diameter of the offset and the stack below it shall be determined as for a building drain in accordance with Table 710.1(1). 56 1997 INTERNATIONAL PLUMBING CODE I 4 SECTION 712 SUMPS AND EJECTORS 712.1 Building drains below sewer. Building drains that can- not be discharged to the sewer by gravity flow shall be dis- charged into a tightly covered and vented sump from which the liquid shall be lifted and discharged into the building gravity drainage system by automatic pumping equipment or other approved method. 712.2 Check and gate valve required. A gate valve located on the discharge side of the check valve shall be installed in the pump or ejector discharge piping between the pump or ejector and the gravity drainage system. Access shall be provided to such valves. Such valves shall be located above the sump cover required by Section 712.1 or, when the discharge pipe from the ejector is below grade, the valves shall be accessibly located outside the sump below grade in .an access pit with a removable access cover. Exception: In residential buildings, only a check valve shall be required, located on the discharge piping from the sewage pump or ejector. 712.3 Sump design. The sump pump, pit and discharge piping shall conform to the requirements of Sections 712.3.1 though 712.3.5 712.3.1 Sump pump. The sump pump capacity and head shall be appropriate to anticipated use requirements. 712.3.2 Sump pit. The sump pit shall be not less than 18 inches (457 mm) in diameter and 24 inches (610 mm) deep, unless otherwise approved. The pit shall be accessible and located such that all drainage flows into the pit by grav- ity The sump pit shall be constructed of tile, concrete, steel, plastic or other approved materials. The pit bottom shall be solid and provide permanent support for the pump. The sump pit shall be fitted with a gas -tight removable cover ade- quate to support anticipated loads in the area of use. The sump pit shall be vented in accordance with Chapter 9 712.3.3 Discharge piping. Discharge piping shall meet the requirements of Section 712.2. 712.3.4 Maximum effluent level. The effluent level control shall be adjusted and maintained to at all times prevent the effluent in the sump from rising to within 2 inches (51 mm) of the invert of the gravity drain inlet into the sump. 712.3.5 Ejector connection to the drainage system. Pumps connected to the drainage system shall connect to the building sewer or shall connect to a Wye fitting in the build- ing drain a minimum of 10 feet (3048 mm) from the base of any soil stack, waste stack or fixture drain. Where the dis- charge line connects into horizontal drainage piping, the connector shall be made through a Wye fitting into the top of the drainage piping. 712.4 Sewage pumps and sewage ejectors. A sewage pump or sewage ejector shall automatically discharge the contents of the sump to the building drainage system. ' 712.4.1 Capacity A sewage pump or sewage ejector shall have the capacity and head for the application requirements. 712-713.5 Pumps or ejectors that receive the discharge of water closets shall be capable of handling spherical solids with a diameter of up to and including 2 inches (51 mm). Other pumps or ejectors shall be capable of handling spherical solids with a .diameter of up to and .including .l :inch (25 mm). The mini- mum capacity of a pump or ejector based on the diameter of the discharge pipe shall be in accordance with Table 712.4 1. Exception: Grinder pumps or grinder ejectors that receive the discharge of water closets shall have a mini- mum discharge opening of 11/4 inches (32 mm). TABLE 712.4.1 MINIMUM CAPACITY OF SEWAGE PUMP OR SEWAGE EJECTOR DIAMETER OF THE DISCHARGE PIPE (Inches) CAPACITY OF PUMP OR EJECTOR (gpm) 2 21 21/2 30 3 46 For SI: 1 inch = 25.4 mm, 1 gpm = 3.785 Lm. SECTION 713 HEALTH CARE PLUMBING 713.1 Scope. This section shall govern those aspects of health care plumbing systems that differ from plumbing systems in other structures. Health care plumbing systems shall conform to this section in addition to the other requirements of this code. The provisions of this section shall apply to the special devices and equipment installed and maintained in the following occu- pancies. nursing homes, homes for the aged, orphanages, infir- maries, first aid stations, psychiatric facilities, clinics, profes- sional offices of dentists and doctors, mortuaries, educational facilities, surgery, dentistry, research and testing laboratories, establishments manufacturing pharmaceutical drugs and medi- cines, and other structures with similar apparatus and equip- ment classified as plumbing. 713.2 Bedpan washers and clinical sinks. Bedpan washers and clinical sinks shall connect to the drainage and vent system in accordance with the requirements for a water closet. Bedpan washers shall also connect to a local vent. 7133 Indirect waste. All sterilizers, steamers and condensers shall discharge to the drainage through an indirect waste pipe by means of an air gap. Where a battery of not more than three sterilizers discharges to an individual receptor, the distance between the receptor and a sterilizer shall not exceed 8 feet (2438 mm). The indirect waste pipe on a bedpan steamer shall be trapped. 713.4 Vacuum system station. Ready access shall be provided to vacuum system station receptacles. Such receptacles shall be built into cabinets or recesses and shall be visible. 713.5 Bottle system. Vacuum (fluid suction) systems intended for collecting, removing and disposing of blood, pus or other fluids by the bottle system shall be provided with receptacles equipped with an overflow prevention device at each vacuum outlet station. 1997 INTERNATIONAL PLUMBING CODE 57 713.6 — 713.11.3 713.6 Central disposal system equipment. All central vac- uum (fluid suction) systems shall provide continuous service. Systems equipped with collecting or control tanks shall provide for draining and cleaning of the tanks while the system is in operation. in hospitals, the system shall be connected to the emergency power system. The exhausts from a vacuum pump serving a vacuum (fluid suction) system shall discharge sepa- rately to open air above the roof. 713.7 Central vacuum or disposal systems. Where the waste from a central vacuum (fluid suction) system of the barometric - lag, collection -tank or bottle - disposal type is connected to the drainage system, the waste shall be directly connected to the sanitary drainage system through a trapped waste. 713.7.1 Piping. The piping of a central vacuum (fluid suc- tion) system shall be of corrosion- resistant material with a smooth interior surface. A branch shall not be less than 1/2 -inch (12.7 mm) nominal pipe size for one outlet and shall be sized in accordance with the number of vacuum outlets. A main shall not be less than 1 -inch (25 4 mm) nominal pipe size. The pipe sizing shall be increased in accordance with the manufacturer's instructions as stations are increased. For the purposes of inspection, maintenance and replacement, all piping shall have cleanout facilities on mains and branches. Access shall be provided to such clean - out facilities. 713.7.2 Velocity. The velocity of airflow in a central vacuum (fluid suction) system shall be less than 5,000 feet per minute (25 m/s). 713.8 Vent connections prohibited. Connections between local vents serving bedpan washers or sterilizer vents serving sterilizing apparatus and normal sanitary plumbing systems are prohibited. Only one type of apparatus shall be served by a local vent. 713.9 Local vents and stacks for bedpan washers. Bedpan washers shall be vented to open air above the roof by means of one or more local vents. The local vent for a bedpan washer shall not be less than a 2- inch - diameter (51 mm) pipe. A local vent serving a single bedpan washer is permitted to drain to the fixture served. 713.9.1 Multiple installations. Where bedpan washers are located above each other on more than one floor, a local vent stack is permitted to be installed to receive the local vent on the various floors. Not more than three bedpan washers shall be connected to a 2 -inch (51 mm) local vent stack, not more than six to a 3 -inch (76 mm) local vent stack and not more than 12 to a 4 -inch (102 mm) local vent stack. In multiple installations, the connections between a bedpan washer local vent and a local vent stack shall be made with tee or tee -wye sanitary pattern drainage fittings installed in an upright posi- tion. 713.9.2 Trap required. The bottom of the local vent stack, except where serving only one bedpan washer, shall be drained by means of a trapped and vented waste connection to the sanitary drainage system. The trap and waste shall be the same size as the local vent stack. 713.9.3 Trap seal maintenance. A water supply pipe not less than 1/4 inch (6.4 mm) in diameter shall be taken from the flush supply of each bedpan washer on the discharge or fixture side of the vacuum breaker, shall be trapped to form not less than a 3 -inch (76 mm) water seal, and shall be con- nected to the local vent stack on each floor. The water supply shall be installed so as to provide a supply of water to the local vent stack for cleansing and drain trap seal mainte- nance each time a bedpan washer is flushed. 713.10 Sterilizer vents and stacks. Multiple installations of pressure and nonpressure sterilizers shall have the vent connec- tions to the sterilizer vent stack made by means of inverted wye fittings. Access shall be provided to vent connections for the purpose of inspection and maintenance. 713.10.1 Drainage. The connection between sterilizer vent or exhaust openings and the sterilizer vent stack shall be designed and installed to drain to the funnel or basket -type waste fitting. In multiple installations, the sterilizer vent stack shall be drained separately to the lowest sterilizer fun- nel or basket -type waste fitting or receptor. 713.11 Sterilizer vent stack sizes. Sterilizer vent stack sizes shall comply with Sections 713.111 through 713.114 713.11.1 Bedpan steamers. The minimum size of a steril- izer vent serving a bedpan steamer shall be 11/2 inches (38 mm) in diameter. Multiple installations shall be sized in accordance with Table 713.11 1 TABLE 713.11 1 STACK SIZES FOR BEDPAN STEAMERS AND BOILING -TYPE STERILIZERS (Number of Connections of Various Sizes Permitted to Various -sized Sterilizer Vent Stacks) STACK SIZE (Inches) CONNECTION SIZE 11/2 2" 11 /2a 1 or 0 2a 2 or 1 2b 1 and 1 3a 4 or 2 3b 2 and 2 4a 8 or 4 4b 4 and 4 For SI: 1 inch = 25.4 mm. a Total of each size. b Combination of sizes. 713.11.2 Boiling -type sterilizers. The minimum size of a sterilizer vent stack shall be 2 inches (51 mm) in diameter where serving a utensil sterilizer and 11/2 inches (38 mm) in diameter where serving an instrument sterilizer. Combina- tions of boiling -type sterilizer vent connections shall be sized in accordance with Table 713 11 1 713.11.3 Pressure sterilizers. Pressure sterilizer vent stacks shall be 21/2 inches (64 mm) minimum. Those serving com- binations of pressure sterilizer exhaust connections shall be sized in accordance with Table 713 11.3 58 1997 INTERNATIONAL PLUMBING CODE TABLE 713.11.3 STACK SIZES FOR PRESSURE STERILIZERS (Number of Connections of Various Sizes Permitted to Various -sized Vent Stacks) STACK SIZE (Inches) CONNECTION SIZE 34" 1 11/4 11/2" 11 /2a 3 or 2 or 1 11/2 2 and 1 2a 6 or 3 or 2 or 1 2b 3 and 2 2 2 and 1 and 1 2 1 and 1 and 1 38 15 or 7 or 5 or 3 3 1 and 1 and 5 and 2 and .2 1 For SI: 1 inch = 25.4 mm. a Total of each size. b Combination of sizes. 713.11.4 — 715.6 est plumbing fixtures are below the next upstream manhole in the public sewer. Plumbing fixtures with flood rims above the next upstream manhole shall not discharge through the back- water valve. 715.2 Fixture branches. Backwater valves shall be installed in the branch of the building drain that receives only the discharge from fixtures located within such branch and shall be located below ground. 715.3 Material. All bearing parts of backwater valves shall be of corrosion- resistant material. Backwater valves shall comply with ASME A112.141, CSA CAN /CSA -B1811 or CSA CAN /CSA- B181.2. 715.4 Seal. Backwater valves shall be so constructed as to pro- vide a mechanical seal against backflow 715.5 Diameter. Backwater valves, when fully opened, shall have a capacity not less than that of the pipes in which they are installed. 713.11.4 Pressure instrument washer sterilizer sizes. The 715.6 Location. Backwater valves shall be installed so that minimum diameter of a sterilizer vent stack serving an access is provided to the working parts for service and repair. instrument washer sterilizer shall be 2 inches (51 mm). Not more than two sterilizers shall be installed on a 2 -inch (51 mm) stack, and not more than four sterilizers shall be installed on a 3 -inch (76 mm) stack. SECTION 714 COMPUTERIZED DRAINAGE DESIGN 714.1 Design of drainage system. The sizing requirements for plumbing drainage systems shall be determined by approved computer program design methods. 714.2 Load on drainage system. The load shall be computed from the simultaneous or sequential discharge conditions from fixtures, appurtenances and appliances or the peak usage design condition. 714.2.1 Fixture discharge profiles. The discharge profiles for flow rates versus time from fixtures and appliances shall be in accordance with the manufacturer's specifications. 7143 Selections of drainage pipe sizes. Pipe shall be sized to prevent full -bore flow 714.3.1 Selecting pipe wall roughness. Pipe size calcula- tions shall be conducted with the pipe wall roughness factor (k5), in accordance with the manufacturer's specifications and as modified for aging roughness factors with deposits and corrosion. 714.3.2 Slope of horizontal drainage piping. Horizontal drainage piping shall be designed and installed at slopes in accordance with Table 704 1 SECTION 715 BACKWATER VALVES 715.1 Sewage backflow. A backwater valve shall be installed only for plumbing fixtures where the overflow rim of the low- 1997 INTERNATIONAL PLUMBING CODE 59 1997 INTERNATIONAL PLUMBING CODE 60 CHAPTER 8 INDIRECT /SPECIAL WASTE SECTION 801 GENERAL 801.1 Scope. This chapter shall govern matters concerning indirect waste piping and special wastes. This chapter shall fur- ther control matters concerning food - handling establishments, sterilizers, clear -water wastes, swimming pools, methods of providing air breaks or air gaps, and neutralizing devices for corrosive wastes. 801.2 Protection. All devices, appurtenances, appliances and apparatus intended to serve some special function, such as ster- ilization, distillation, processing, cooling, or storage of ice or foods, and that discharge to the drainage system, shall be pro- vided with protection against backflow, flooding, fouling, con- tamination and stoppage of the drain. SECTION 802 INDIRECT WASTES 802.1 Where required. Food - handling equipment and Clear- water waste shall discharge through an indirect waste pipe as specified in Sections 802.11 through 802.1.4 All health care related fixtures, devices and equipment shall discharge to the drainage system through an indirect waste pipe by means of an air gap in accordance with this chapter and Section 713.3 802.1.1 Food handling. Equipment and fixtures utilized for the storage, preparation and handling of food shall discharge through an indirect waste pipe by means of an air gap. Exception: This requirement shall not apply to dishwash- ing machines and dishwashing sinks. 802.1.2 Floor drains in food storage areas. Floor drains located within walk -in refrigerators or freezers in food serv- ice and food establishments shall be indirectly connected to the sanitary drainage system by means of an air gap. Exception. Where protected against backflow by a back- water valve, such floor drains shall be indirectly con- nected to the sanitary drainage system by means of an air break or an air gap. 802.1.3 Potable clear -water waste. Where devices and equipment, such as sterilizers, swimming pools and relief valves, discharge potable water to the building drainage sys- tem, the discharge shall be through an indirect waste pipe by means of an air gap. 802.1.4 Nonpotable clear -water waste. Where devices and equipment, such as process tanks, filters, drips and boilers, discharge nonpotable water to the building drainage system, the discharge shall be through an indirect waste pipe by means of an air break or an air gap. 802.2 Installation. All indirect waste piping shall discharge through an air gap or air break into a waste receptor or stand- pipe. Waste receptors and standpipes shall be trapped and vented and shall connect to the building drainage system. All indirect waste piping that exceeds 2 feet (610 mm) in devel- oped length measured horizontally, or 4 feet (1219 mm) in total developed length, shall be trapped. 802.2.1 Air gap. The air gap between the indirect waste pipe and the flood level rim of the waste receptor shall be a mini- mum of twice the effective opening of the indirect waste pipe. 802.2.2 Air break. An air break shall be provided between the indirect waste pipe and the trap seal of the waste receptor or standpipe. 802.3 Waste receptors. Every waste receptor shall be of an approved type. A removable strainer or basket shall cover the waste outlet of waste receptors. Waste receptors shall be installed in ventilated spaces. Waste receptors shall not be installed in bathrooms or toilet rooms or in any inaccessible or unventilated space such as a closet or storeroom. Ready access shall be provided to waste receptors. 802.3.1 Size of receptors. A waste receptor shall be sized for the maximum discharge of all indirect waste pipes served by the receptor. Receptors shall be installed to prevent splash- ing or flooding. 802.3.2 Open hub waste receptors. Waste receptors shall be permitted in the form of a hub or pipe extending not less than 1 inch (25 mm) above a water - impervious floor and are not required to have a strainer. 802.4 Standpipes. Standpipes shall be individually trapped. Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1066 mm) above the trap. Access shall be provided to all standpipe traps and drains for rodding. SECTION 803 SPECIAL WASTES 803.1 Waste -water temperature. Steam pipes shall not con- nect to any part of a drainage or plumbing system and water above 140 °F (60 °C) shall not be discharged into any part of a drainage system. Such pipes shall discharge into an indirect waste receptor connected to the drainage system. 803.2 Neutralizing device required for corrosive wastes. Corrosive liquids, spent acids or other harmful chemicals that destroy or injure a drain, sewer, soil or waste pipe, or create noxious or toxic fumes or interfere with sewage treatment pro- cesses, shall not be discharged into the plumbing system with- out being thoroughly diluted, neutralized or treated by passing through an approved dilution or neutralizing device. Such devices shall be automatically provided with a sufficient sup- ply of diluting water or neutralizing medium so as to make the contents noninjurious before discharge into the drainage sys- tem. The nature of the corrosive or harmful waste and the 1997 INTERNATIONAL PLUMBING CODE 61 803.3-804.1 method of its treatment or dilution shall be approved prior to installation. 803.3 System design. A chemical drainage and vent system shall be designed and installed in accordance with this code. Chemical drainage and vent systems shall be completely sepa- rated from the sanitary systems. Chemical waste shall not dis- charge to a sanitary drainage system until such waste has been treated in accordance with Section 803.2. SECTION 804 MATERIALS, JOINTS AND CONNECTIONS 804.1 General. The materials and methods utilized for the construction and installation of indirect waste pipes and sys- tems shall comply with the applicable provisions of Chapter 7 62 1997 INTERNATIONAL PLUMBING CODE CHAPTER 9 VENTS SECTION 901 GENERAL '901.1 Scope. The provisions of this chapter shall govern the materials, design, construction and installation of vent systems. 901.2 Trap seal protection. The plumbing system shall be pro- vided with a system of vent piping that will permit the admis- sion or emission of air so that the seal of any fixture trap shall not be subjected to a pneumatic pressure differential of more than 1 inch of water (249 Pa). 901.2.1 Venting required. Every trap and trapped fixture shall be vented in accordance with one of the venting meth- ods specified in this chapter. 9013 Chemical waste vent system. The vent system for a chemical waste system shall be independent of the sanitary vent system and shall terminate separately through the roof to the open air. 901.4 Use limitations. The plumbing vent system shall not be utilized for purposes other than the venting of the plumbing system. 901.5 Tests. The vent system shall be tested in accordance with Section 312. 901.6 Engineered systems. Engineered venting systems shall conform to the provisions of Section 918. SECTION 902 MATERIALS 902.1 Vents. The materials and methods utilized for the construction and installation of venting systems shall comply with the applicable provisions of Section 702. 902.2 Sheet copper. Sheet copper for vent pipe flashings shall conform to ASTM B 152 and shall weigh not less than 8 ounces per square foot (2.5 kg/m2). 9023 Sheet lead. Sheet lead for vent pipe flashings shall weigh not less than 3 pounds per square foot (15 kg/m2) for field - constructed flashings and not less than 21/2 pounds per square foot (12 kg/m2) for prefabricated flashings. SECTION 903 VENT STACKS AND STACK VENTS 903.1 Main vent required. Every sanitary drainage system receiving the discharge of a water closet shall have a main vent that is either a vent stack or a stack vent. Such vent shall run undiminished in size and as directly as possible from the build- ing drain through to the open air above the roof. 903.2 Vent stack required. A vent stack shall be required for every drainage stack that is five branch intervals or more. 9033 Vent termination. Every vent stack or stack vent shall extend outdoors and terminate to the open air. 903.4 Vent connection at base. Every vent stack shall connect to the base of the drainage stack. The vent stack shall connect at or below the lowest horizontal branch. Where the vent stack connects to the building drain, the connection shall be located within ten pipe diameters downstream of the drainage stack. 903.5 Vent headers. Stack vents and vent stacks connected into a common vent header at the top of the stacks and extend- ing to the open air at one point shall be sized in accordance with the requirements of Section 916.1. The number of fixture units shall be the sum of all fixture units on all stacks connected thereto, and the developed length shall be the longest vent length from the intersection at the base of the most distant stack to the vent terminal in the open air, as a direct extension of one stack. SECTION 904 VENT TERMINALS 904.1 Roof extension. All open vent pipes that extend through a roof shall be terminated at least [NUMBER] inches (mm) above ' the roof, except that where a roof is to be used for any purpose other than weather protection, the vent extensions shall be run at least 7 feet (2134 mm) above the roof. 904.2 Frost closure. Where the 971/2- percent value for outside design temperature is less than 0 °F (- 18 °C), every vent exten- sion through a roof or wall shall be a minimum of 3 inches (76 mm) in diameter. Any increase in the size of the vent shall be made inside the structure a minimum of 1 foot (305 mm) below the roof or inside the wall. 9043 Flashings. The juncture of each vent pipe with the roof line shall be made water tight by an approved flashing. 904.4 Prohibited use. Vent terminals shall not be used as a flag pole or to support flag poles, TV aerials or similar items, except when the piping has been anchored in an approved manner. 904.5 Location of vent terminal. An open vent terminal from a drainage system shall not be located directly beneath any door, openable window, or other air intake opening of the building or of an adjacent building, and any such vent terminal shall not be within 10 feet (3048 mm) horizontally of such an opening unless it is at least 2 feet (610 mm) above the top of such opening. 904.6 Extension through the wall. Vent terminals extending through the wall shall terminate a minimum of 10 feet (3048 mm) from the lot line and 10 feet (3048 mm) above average ground level. Vent terminals shall not terminate under the over- 1997 INTERNATIONAL PLUMBING CODE 63 904.7-908.3 hang of a structure with soffit vents. Side wall vent terminals shall be protected to prevent birds or rodents from entering or blocking the vent opening. 904.7 Extension - outside a structure. In climates where the 971/2- percent value for outside design temperature is less than 0 °F (- 18 °C), vent pipes installed on the exterior of the structure shall be protected against freezing by insulation, heat or both. SECTION 905 VENT CONNECTIONS AND GRADES 905.1 Connection. All individual, branch and circuit vents shall connect to a vent stack, stack vent or extend to the open air. Exception: Individual, branch and circuit vents shall be per- mitted to terminate at an air admittance valve in accordance with Section 917 905.2 Grade. All vent and branch vent pipes shall be so graded and connected as to drain back to the drainage pipe by gravity 905.3 Vent connection to drainage system. Every dry vent connecting to a horizontal drain shall connect above the center- line of the horizontal drain pipe. 905.4 Vertical rise of vent. Every dry vent shall rise vertically to a minimum of 6 inches (152 mm) above the flood level rim of the highest trap or trapped fixture being vented. 905.5 Height above fixtures. A connection between a vent pipe and a vent stack or stack vent shall be made at least 6 inches (152 mm) above the flood level rim of the highest fixture served by the vent. Horizontal vent pipes forming branch vents, relief vents or loop vents shall be at least 6 inches (152 mm) above the flood level rim of the highest fixture served. 905.6 Side inlet. Side inlet closet bends are permitted only in cases where the fixture connecting thereto is vented and in no case shall the inlet be used to vent a bathroom group without being washed by a fixture. 905.7 Vent for future fixtures. Where the drainage piping has been roughed -in for future fixtures, a rough -in connection for a vent shall be installed a minimum of one -half the diameter of the drain. The vent rough -in shall connect to the vent system. The connection shall be identified to indicate that the connec- tion is a vent. SECTION 906 FIXTURE VENTS 906.1 Distance of trap from vent. Each fixture trap shall have a protecting vent located so that the slope and the developed length in the fixture drain from the trap weir to the vent fitting are within the requirements set forth in Table 906.1. TABLE 906.1 MAXIMUM DISTANCE OF FIXTURE TRAP FROM VENT SIZE OF TRAP (Inches) SIZE OF FIXTURE DRAIN (Inches) SLOPE (Inch per foot) DISTANCE FROM TRAP (feet) 11 /4 11/4 1/4 31/2 11/4 11/2 1/a 5 11/2 11/2 1/4 5 11/2 2 1/4 8 2 2 1/4 6 3 3 1/8 10 4 4 1/8 12 For SI: 1 inch = 25 4 mm, 1 inch per foot = 0.0833 mm /m, 1 foot = 304.8 mm. 906.2 Venting of fixture drains. The vent for a fixture drain, except where serving a fixture with integral traps, such as water closets, shall connect above the weir of the fixture trap being vented. 906.3 Crown vent. A vent shall not be installed within two pipe diameters of the trap weir. SECTION 907 INDIVIDUAL VENT 907.1 Individual vent permitted. Each trap and trapped fix- ture is permitted to be provided with an individual vent. The individual vent shall connect to the fixture drain of the trap or trapped fixture being vented. SECTION 908 COMMON VENT 908.1 Individual vent as common vent. An individual vent is permitted to vent two traps or trapped fixtures as a common vent. The traps or trapped fixtures being common vented shall be located on the same floor level. 908.2 Connection at the same level. Where the fixture drains being common vented connect at the same level, the vent con- nection shall be at the interconnection of the fixture drains or downstream of the interconnection. 908.3 Connection at different levels. Where the fixture drains connect at different levels, the vent shall connect as a vertical extension of the vertical drain. The vertical drain pipe connect- ing the two fixture drains shall be considered the vent for the lower fixture drain, and shall be sized in accordance with Table 908.3 The upper fixture shall not be a water closet. TABLE 908.3 COMMON VENT SIZES PIPE SIZE (Inches) MAXIMUM DISCHARGE FROM UPPER FIXTURE DRAIN (dfu) 11/2 1 2 4 21/2 to 3 6 For SI: 1 inch = 25 4 mm. 64 1997 INTERNATIONAL PLUMBING CODE SECTION 909 WET VENTING 909.1 Wet vent permitted. Any combination of fixtures within two bathroom groups located on the same floor level are permitted to be vented by a wet vent. The wet vent shall be con- sidered the vent for the fixtures and shall extend from the con- nection of the dry vent along the direction of the flow in the drain pipe to the most downstream fixture drain connection to the horizontal branch drain. Only the fixtures within the bath- room groups shall connect to the wet- vented horizontal branch drain. Any additional fixtures shall discharge downstream of the wet vent. 909.2 Vent connection. The dry vent connection to the wet vent shall be an individual vent or common vent to the lavatory, bidet, shower or bathtub 909.3 Size. The wet vent shall be of a minimum size as speci- fied in Table 909.3, based on the fixture unit discharge to the wet vent. TABLE 909.3 WET VENT SIZE WET VENT PIPE SIZE (Inches) DRAINAGE FIXTURE UNIT LOAD (dfu) 11/2 1 2 4 21/2 6 3 12 For SI: 1 inch = 25.4 mm. SECTION 910 WASTE STACK VENT 910.1 Waste stack vent permitted. A waste stack shall be con- sidered a vent for all of the fixtures discharging to the stack where installed in accordance with the requirements of this sec- tion. 910.2 Stack installation. The waste stack shall be vertical, and both horizontal and vertical offsets shall be prohibited. Every fixture drain shall connect separately to the waste stack. The stack shall not receive the discharge of water closets or urinals. 910.3 Stack vent. A stack vent shall be provided for the waste stack. The size of the stack vent shall be equal to the size of the waste stack. Offsets shall be permitted in the stack vent and shall be located at least 6 inches (152 mm) above the flood level of the highest fixture, and shall be in accordance with Section 905.2. 910.4 Waste stack size. The waste stack shall be sized based on the total discharge to the stack and the discharge within a branch interval in accordance with Table 910.4 The waste stack shall be the same size throughout the length of the waste stack. 909 — 911.4.2 TABLE 910.4 WASTE STACK VENT SIZE STACK SIZE (Inches) MAXIMUM NUMBER OF DRAINAGE FIXTURE UNITS (dfu) Total discharge Into one branch Interval Total discharge for stack 11/2 1 2 2 2 4 21/2 No limit 8 3 No limit 24 4 No limit 50 5 No limit 75 6 No limit 100 For SI: 1 inch = 25.4 mm. SECTION 911 CIRCUIT VENTING 911.1 Circuit vent permitted. A maximum of eight fixtures connected to a horizontal branch drain shall be permitted to be circuit vented. Each fixture drain shall connect horizontally to the horizontal branch being circuit vented. The horizontal branch drain shall be classified as a vent from the most down- stream fixture drain connection to the most upstream fixture drain connection to the horizontal branch. 911.1.1 Multiple circuit- vented branches. Circuit - vented horizontal branch drains are permitted to be connected together. Each group of a maximum of eight fixtures shall be considered a separate circuit vent and shall conform to the requirements of this section. 911.2 Vent connection. The circuit vent connection shall be located between the two most upstream fixture drains. The vent shall connect to the horizontal branch and shall be installed in accordance with Section 905 The circuit vent pipe shall not receive the discharge of any soil or waste. 911.3 Slope and size of horizontal branch. The maximum slope of the vent section of the horizontal branch drain shall be one unit vertical in 12 units horizontal (8- percent slope). The entire length of the vent section of the horizontal branch drain shall be sized for the total drainage discharge to the branch. 911.3.1 Size of multiple circuit vent. Each separate circuit - vented horizontal branch that is interconnected shall be sized independently in accordance with Section 911.3 The down- stream circuit - vented horizontal branch shall be sized for the total discharge into the branch, including the upstream branches and the fixtures within the branch. 911.4 Relief vent. A relief vent shall be provided for circuit - vented horizontal branches receiving the discharge of four or more water closets and connecting to a drainage stack that receives the discharge of soil or waste from upper horizontal branches. 911.4.1 Connection and installation. The relief vent shall connect to the horizontal branch drain between the stack and the most downstream fixture drain of the circuit vent. The relief vent shall be installed in accordance with Section 905 911.4.2 Fixture drain or branch. The relief vent is per- mitted to be a fixture drain or fixture branch for fixtures 1997 INTERNATIONAL PLUMBING CODE 65 1111:6 – >i1�i:2 ,.located within the same branch interval as the circuit- vented s Iorizontal branch. The maximum discharge to a relief vent shall be four fixture units. P 911.5, Additional fixft res. ,Fixtures, <otherAhan ,the ,circuit- x vented fixtures, are :permitted to discharge to the horizontal :branch drain. Such fixtures shall be located on the same floor as the-circuit- vented-fixtures and shall be either individually or :common vented. + SECTION 912 E. x -,COMBINATION DRAIN AND VENT SYSTEM t',,912.1 Type of fixtures. A combination drain and vent system shall not serve fixtures other than .floor drains, standpipes, sinks and lavatories. Y '912.2 :installation. The only vertical P i Pe of a combination gain and vent system shall be the connection between:tlie fix - ture drain of a sink, lavatory or standpipe,.and the horizontal combination drain and vent pipe. The maximum vertical dis- #';tance shall be 8 feet ,(2438 mm). 912.2.1 Slope. The horizontal combination drain and vent pipe shall have a maximum slope of one -half unit vertical in '12 units' horizontal (4- percent slope). The minimum slope "shill be in accordance with' Table 704:1. r 912.2.2 Connection. The combination drain and vent pipe mQ ihall connect to .a :horizontal drain that is vented or a vent shall connect to the combination :drain and .vent. The vent m- !connecting to the combination drain and vent pipe shall - ,gextend vertically a minimum of 6 inches (152 mm) above the flood level rim of the highest fixture being vented before off- setting horizontally f,. 112.2.3 -Vent size. The vent shall be sized for the total drain- J'age-fixture unit load in accordance with Section 916.2. t "912.2.4 Fixture branch or drain. The fixture branch or fix - ture drain shall connect to the combination :drain and vent ,.within a distance specified in Table 906.1. The combination `,drain and vent .pipe shall be considered the vent for the fix- ture. ;, '9123 Size. The minimum size of a combination drain and vent pipe shall be in accordance with Table 912.3 SECTION 913 ISLAND FIXTURE VENTING 913.1 Limitation. Island fixture venting shall not be permitted for fixtures .other.than_sinks.and lavatories. Residential kitchen sinks with a dishwasher waste connection, a food waste grinder, or both, in combination with the kitchen sink waste, shall be permitted to be vented in accordance with this section. TTABLEM2.2 SIZE OF COMBINATION AND VENT'PIPE 3 OUIMETER PIPE lunches) r. MAXIMUM :NUMBER OF ORAINAGE .Y nXTURE -UNITS (dlu) ;. ;,Connwdng to 6 .horlton l branch or ., stack _ : CennwUng to a^ ' 'bullding drain or 'building subdrain 2 Y ,3 a 4 �21z { 3 13 31 4 ,. ,20 _ so 5 160 250 .6 360 575 t For SI: t `inch = 25A mm i' .;i 913.2 Vent connection. The island fixture vent:shall connect to,}. ,the fixture, drain as required for an individual or"common vent. ,The vent .shall.rise veitically to .above the drainage outlet bf .the • fixture being vented before offsetting horizontally or vertically downward. The vent or branch vent for multiple island fixture t - -vents shall extend.to a minimum of 6 inches (152 mm) above the highest island fixturebeing vented before connecting to the outside vent teiminal..y 913.3 Vent installation.below.the fixture flood-level rim. The -vent located below the .flood .level -rin! of the fixture being vented shall be installed as required for :drainage ;piping -in accordance with Chapter 7; except for sizing. The vent shall be sized in accordance with Section 916.2. The lowest point of the •island fixture vent shall connect full size to the drainage .sys- tem. The connection shall be to a vertical drain pipe or to the -top half of a horizontal drain pipe. Cleanouts shall be,provided in , ,the .island fixture vent to permit 'rodding of all vent piping locatedbelow the flood level rim of the fixtures. Rodding in both directions shall be permitted through a cleanout. SECTION 914 RELIEF VENT"TACKS'OF, MORE THAN 10 BRANCH INTERVALS _ R 914.1 Where required. Soil and waste stacks in buildings hav- ing more than 10 branch.intervals shall be provided with a relief vent at each tenth interval installed, beginning with the ,top. floor. 914:2.Size and connection. The.size of the relief vent shall be equal to the size of the vent stack to which it connects. SECTION 915 VENTS FOR STACK OFFSETS 915.1 Vent for horizontal onset of drainage stack Horizon- tal offsets of drainage stacks shall be vented where five or more branch intervals are located above the offset. The offset shall be vented by venting the upper section of the drainage stack and the lower section of the drainage stack. 1 - -115.2 Upper section: 3be upper section of-the drainage- stack shall be vented as a separate stack with a vent stack connection installed in accordance with Section 903.4 The offset shall be considered the base of the stack. as 1997 INTERNATIONAL PLUMBING CODE 915.3 Lower section. The lower section of the drainage stack shall be vented by a yoke vent connecting between the offset and the next lower horizontal branch. The yoke vent connec- tion shall be permitted to be a vertical extension of the drainage stack. The size of the yoke vent and connection shall be a mini- mum of the size required for the vent stack of the drainage stack. SECTION 916 VENT PIPE SIZING 916.1 Size of stack vents and vent stacks. The minimum required diameter of stack vents and vent stacks shall be deter- 915.3 — 916.2 mined from the developed length and the total of drainage fix- ture units connected thereto in accordance with Table 916.1, but in no case shall the diameter be less than one -half the diame- ter of the drain served or less than 11/4 inches (32 mm). 916.2 Other vents. The diameter of individual vents, branch vents, circuit vents and relief vents shall be at least one -half the required diameter of the drain served. The required size of the drain shall be determined in accordance with Chapter 7 Vent pipes shall not be less than 11/4 inch (32 mm) in diameter. Vents exceeding 40 feet (12 192 mm) in developed length shall be increased by one nominal pipe size for the entire developed length of the vent pipe. Relief vents for soil and waste stacks in buildings having more than 10 branch intervals shall be sized in accordance with Section 914.2. TABLE 916.1 SIZE AND DEVELOPED LENGTH OF STACK VENTS AND VENT STACKS DIAMETER OF TOTAL FIXTURE UNITS MAXIMUM DEVELOPED LENGTH OF VENT (feet)s SOIL OR WASTE BEING VENTED DIAMETER OF VENT (Inches) 11/4 11/2 2 21/2 3 4 5 6 8 10 12 STACK (Inches) (dfu) 11/4 2 30 11 /2 8 50 150 11 /2 10 30 100 2 12 30 75 200 2 20 26 50 150 21/2 42 30 100 1 300 3 10 42 150 360 1,040 3 21 32 110 270 810 3 53 27 94 230 680 3 102 25 86 210 620 4 43 35 85 250 980 4 140 27 65 200 1 750 4 320 23 55 170 640 4 540 21 50 150 580 5 190 1 28 82 320 990 5 490 21 63 250 760 5 940 18 53 210 670 5 1,400 16 49 190 590 6 500 33 130 400 1,000 6 1,100 26 100 310 780 6 2,000 22 84 260 660 6 2,900 20 77 240 600 8 1,800 31 95 240 940 8 3,400 24 73 1 190 720 8 5,600 20 62 160 610 8 7,600 18 56 140 560 10 4,000 31 78 310 960 10 7,200 24 60 240 740 10 11,000 20 51 200 630 10 15,000 18 46 180 570 12 7,300 31 120 380 940 12 13,000 24 94 300 720 12 20,000 20 79 250 610 12 26,000 18 72 230 500 15 15,000 40 130 310 15 25,000 31 96 240 15 38,000 26 11 81 0 15 50,000 24 1 180 bor NI: 1 inch = 25.4 mm, 1 foot = 304.8 mm aThe developed length shall be measured from the vent connection to the open air. 1997 INTERNATIONAL PLUMBING CODE 67 916.3 —917.3.2 916.3 Developed length. The developed length of individual, branch, circuit and relief vents shall be measured from the far- thest point of vent connection to the drainage system to the point of connection to the vent stack, stack vent or termination outside of the building. 916.4 Multiple branch vents. Where multiple branch vents are connected to a common branch vent, the common branch vent shall be sized in accordance with this section based on the size of the common horizontal drainage branch that is or would be required to serve the total drainage fixture unit (dfu) load being vented. 916.4.1 Multiple branch vents exceeding 40 feet (12 192 mm) in developed length. Multiple branch vents exceeding 40 feet (12 192 mm) in developed length shall be increased by nominal size for the entire developed length of the vent pipe. 916.5 Sump vents. Sump vent sizes shall be determined in accordance with Sections 916.5 1 and 916.5.2. 916.5.1 Sewage pumps and sewage ejectors other than pneumatic. Drainage piping below sewer level shall be vented in a similar manner to that of a gravity system. Build- ing sump vent sizes for sumps with sewage pumps or sewage ejectors, other than pneumatic, shall be determined in accordance with Table 916.5 1 916.5.2 Pneumatic sewage ejectors. The air pressure relief pipe from a pneumatic sewage ejector shall be connected to an independent,vent stack terminating as required for vent extensions through the roof. The relief pipe shall be sized to relieve air pressure inside the ejector to atmospheric pres- sure, but shall not be less than 1114 inches (32 mm) in size. SECTION 917 AIR ADMITTANCE VALVES 917.1 General. Vent systems utilizing air admittance valves shall comply with this section. Individual- and branch -type air admittance valves shall conform to ASSE 1051 917.2 Installation. The valves shall be installed in accordance with the requirements of this section and the manufacturer's installation instructions. Air admittance valves shall be installed after the DWV testing required by Section 312.2 or 312.3 has been performed. 917.3 Where permitted. Individual, branch and circuit vents shall be permitted to terminate with a connection to an air admittance valve. The air admittance valve shall only vent fix- tures that are on the same floor level and connect to a horizontal branch drain. The horizontal branch drain shall conform to Sec- tion 917.3 1 or 917.3.2. 917.3.1 Location of branch. The horizontal branch drain shall connect to the drainage stack or building drain a maxi- mum of four branch intervals from the top of the stack. 917.3.2 Relief vent. The horizontal branch shall be provided with a relief vent that shall connect to a vent stack, or stack vent, or extend outdoors to the open air. The relief vent shall connect to the horizontal branch drain between the stack or building drain and the most downstream fixture drain con- nected to the horizontal branch drain. The relief vent shall be sized in accordance with Section 916.2 and installed in accordance with Section 905 The relief vent shall be per- mitted to serve as the vent for other fixtures. TABLE 916.5.1 SIZE AND LENGTH OF SUMP VENTS DISCHARGE M MAXIMUM DEVELOPED LENGTH OF VENT (feet)8 CAPACITY OF PUMP D Diameter of vent (Inches) (9Pm) 1 11/4 2 2 2 21/2 3 3 4 4 10 N No limitb N No limit N No limit N No limit N No limit N No limit 20 2 270 N No limit N No limit N No limit N No limit N No limit 40 7 72 1 160 N No limit N No limit N No limit N No limit 60 3 31 7 75 2 270 N No limit N No limit N No limit 80 1 16 4 41 1 150 3 380 N No limit N No limit 100 1 10C 2 25 9 97 2 250 N No limit N No limit 150 N Not permitted l loc 4 44 1 110 3 370 N No limit 200 N Not permitted N Not permitted 2 20 6 60 2 210 N No limit 250 N Not permitted N Not permitted 1 10 3 36 1 132 N No limit 300 N Not permitted N Not permitted 1 10 2 22 8 88 3 380 400 N Not permitted N Not permitted N Not permitted 1 10c 4 44 2 210 500 N Not permitted N Not permitted N Not permitted N Not permitted 2 24 1 130 inc., - �o aan, , iuot =.3u,+.6 mm, 1 gpm = 3.785 lim. a Developed length plus an appropriate allowance for entrance losses and friction due to fittings, changes in direction and diameter. Suggested allowances shall be obtained from NBS Monograph 31 or other approved sources. An allowance of 50 percent of the developed length shall be assumed if a more precise value is not available. b Actual values greater than 500 feet. c Less than 10 feet. 68 1997 INTERNATIONAL PLUMBING CODE 917.4 Location. The air admittance valve shall be located a minimum of 4 inches (102 mm) above the horizontal branch drain or fixture drain being vented. The air admittance valve shall be located within the maximum developed length per- mitted for the vent. The air admittance valve shall be installed a minimum of 6 inches (152 mm) above insulation materials. 917.5 Access and ventilation. Access shall be provided to all air admittance valves. The valve shall be located within a venti- lated space that allows air to enter the valve. 917.6 Size. The air admittance valve shall be rated for the size of the vent to which the valve is connected. 917 7 Vent required. Within each plumbing system, a mini- mum of one stack vent or vent stack shall extend outdoors to the open air. 917.8 Prohibited installations. Air admittance valves shall not be installed in nonneutralized special waste systems as described in Chapter 8. Valves shall not be located in spaces uti- lized as supply or return air plenums. SECTION 918 ENGINEERED VENT SYSTEMS 918.1 General. Engineered vent systems shall comply with this section and the design, submittal, approval, inspection and testing requirements of Section 105 4 918.2 Individual branch fixture and individual fixture header vents. The maximum developed length of individual fixture vents to vent branches and vent headers shall be deter- 917.4-918.2 mined in accordance with Table 918.2 for the minimum pipe diameters at the indicated vent airflow rates. The individual vent airflow rate shall be determined in accordance with the following: Qh,b = Nn,b Qv For SI: Qh,b = Nn,b Qv (0.4719 L /s) where: N,,,b = Number of fixtures per header (or vent branch), total number of fixtures connected to vent stack. Qh,b = Vent branch or vent header airflow rate (cfm). Q,, = Total vent stack airflow rate (cfm). Qv (gpm) = 27.8 rs 21 (1— rs) D8/3 Q„ (cfm) = 0.134 Q,, (gpm) where: D = Drainage stack diameter (inches). Qx, = Design discharge load (gpm). rs = Waste water flow area to total area. Q. 27.8 D8/1 Individual vent airflow rates are obtained by equally distrib- uting Qh b into one -half the total number of fixtures on the branch or header for more than two fixtures; for an odd number of total fixtures, decrease by one; for one fixture, apply the full value of Qh b. Individual vent developed length shall be increased by 20 percent of the distance from the vent stack to the fixture vent connection on the vent branch or header. TABLE 918.2 MINIMUM DIAMETER AND MAXIMUM LENGTH OF INDIVIDUAL BRANCH FIXTURE VENTS AND INDIVIDUAL FIXTURE HEADER VENTS FOR SMOOTH PIPES DIAMETER INDIVIDUAL VENT AIRFLOW RATE (cubic feet per minute) OF VENT PIPE Maximum developed length of vent (feet) (Inches) 1 2 3 4 5 6 7 6 9 10 11 12 13 14 15 16 17 18 19 20 1/2 95 25 13 8 5 4 3 2 1 1 1 1 1 1 1 1 1 1 1 1 3/4 100 88 47 30 20 15 10 9 7 6 5 4 3 3 3 2 2 2 2 1 1 — — 100 94 65 48 37 29 24 20 17 14 12 11 9 8 7 7 6 6 11 /4 — — — — — — — 100 87 73 62 53 46 40 36 32 29 26 23 21 11/2 — — — — — — — — — — — 100 96 84 75 67 60 54 49 45 2 — — — — — — — — — — — — — — — — — — — 100 For SI: 1 inch = 25.4 mm, 1 cfm = 0.4719 Us, 1 foot = 304.8 mm. 1997 INTERNATIONAL PLUMBING CODE 69 \1 70 1997 INTERNATIONAL PLUMBING CODE CHAPTER 10 TRAPS SECTION 1001 GENERAL 1001.1 Scope. This chapter shall govern the material and installation of traps, interceptors and separators. SECTION 1002 TRAP REQUIREMENTS 1002.1 Fixture traps. Each plumbing fixture shall be sepa- rately trapped by a water -seal trap, except as otherwise per- mitted by this code. The trap shall be placed as close as possible to the fixture outlet. The vertical distance from the fixture outlet to the trap weir shall not exceed 24 inches (610 mm). The dis- tance of a clothes washer standpipe above a trap shall conform to Section 802.4 A fixture shall not be double trapped. An au- tomatic clothes washer or laundry tub shall not discharge to a trap serving a kitchen sink. Exceptions: 1 This section shall not apply to fixtures with integral traps. 2. A combination plumbing fixture is permitted to be installed on one trap provided that one compartment is not more than 6 inches (152 mm) deeper than the other compartment and the waste outlets are not more than 30 inches (762 mm) apart. 3 A grease trap intended to serve as a fixture trap in accordance with the manufacturer's installation instructions shall be permitted to serve as the trap for a single fixture or a combination sink of not more than three compartments where the vertical distance from the fixture outlet to the inlet of the interceptor does not exceed 30 inches (762 mm), and the developed length of the waste pipe from the most upstream fixture outlet to the inlet of the interceptor does not exceed 60 inches (1524 mm). 1002.2 Design of traps. Fixture traps shall be self- scouring. Fixture traps shall not have interior partitions, except where such traps are integral with the fixture or where such traps are constructed of an approved material that is resistant to corro- sion and degradation. Slip joints shall be made with an approved elastomeric gasket and shall only be installed on the trap inlet, trap outlet and within the trap seal. 10023 Prohibited traps. The following types of traps are pro- hibited. 1 Traps that depend on moving parts to maintain the seal. 2. Bell traps. Crown - vented traps. 4 Separate fixture traps that depend on interior partitions for I the seal, except those traps constructed of an approved material that is resistant to corrosion and degradation. 5 "S" traps. 6. Drum traps, except where approved. 1002.4 TYap seals. Each fixture trap shall have a liquid seal of not less than 2 inches (51 mm) and not more than 4 inches (102 mm), or deeper for special designs relating to accessible fix- tures. Where a trap seal is subject to loss by evaporation, a deep - seal trap consisting of a 4 -inch (102 mm) seal or a trap seal primer valve shall be installed. A trap seal primer valve shall conform to ASSE 1018 or ASSE 1044 1002.5 Size of fixture traps. Fixture trap size shall be suffi- cient to drain the fixture rapidly and not less than the size indi- cated in Table 709 1. A trap shall not be larger than the drainage pipe into which the trap discharges. 1002.6 Building traps. Building (house) traps shall not be installed, except where required by the code official. Where installed, each building trap shall be provided with a cleanout and a relief vent or fresh air intake on the inlet side of the trap. The size of the relief vent or fresh air intake shall not be less than one -half the diameter of the drain to which the relief vent or air intake connects. Such relief vent or fresh air intake shall be carried above grade and shall be terminated in a screened outlet located outside the building. 1002.7 Trap setting and protection. Traps shall be set level with respect to the trap seal and, where necessary, shall be pro- tected from freezing. 1002.8 Recess for trap connection. A recess provided for con- nection of the underground trap, such as one serving a bathtub in slab -type construction, shall have sides and a bottom of cor- rosion- resistant, insect- and vermin -proof construction. 1002.9 Acid - resisting traps. Where a vitrified clay or other brittleware, acid - resisting trap is installed underground, such trap shall be embedded in concrete extending 6 inches (152 mm) beyond the bottom and sides of the trap. 1002.10 Plumbing in mental health centers. In mental health centers, pipes and traps shall not be exposed. SECTION 1003 INTERCEPTORS AND SEPARATORS 1003.1 Interceptors required. Interceptors for oil, grease, sand and other substances harmful or hazardous to the building drainage system, the public sewer or sewage treatment plant, or processes shall be provided as required in this chapter. Where food waste grinders connect to grease interceptors, the grease interceptor shall be sized and rated for the discharge of the food waste grinder. 1003.1.1 Interceptor not required. An interceptor shall not be required for individual dwelling units or any private liv- ing quarters. 1003.2 Size, type and location to be approved. The size, type and location of each interceptor and of each separator shall be 1997 INTERNATIONAL PLUMBING CODE 71 1063.3—`1004.1 , , :GREASE RETENTION CAPACITY - ::{pounds) . �'r ..�. .a'P �W„rh .ate - x ♦ �.. r :•"*'�"".a'c.'.°i'.wrw,l. MM;f.»� iw..... •yam Y..n„_J .o. ' •g• �M•={ ,.. "` »i4. designed and installed in accordance with the manufacturers :shall be ;separated in :an;approved receptacle. Separators shall f instructions !and the requirements of this section based on the +,be designed in accordance with '.Sections 1003.7.1 and anticipated conditions of use. Wastes that :do not require`treat " 1003.7.2. + r <ment or separation shall not be discharged into any interceptor +. = 1003:71 General design Oil r requirements. :separators r- orteparator. x . r TM x w sliail have a depth of not less' ess than 2 feet mm) below the :x20 .. x1003.3 Grease traps. Grease traps shall conform :to PDI G101 (61'0 invert of the discharge. drain. The outlet opening of the sepa- 24 and shall be :installed in accordance with ;the manufacturer's rator shall 'not have less.than.an 18 -inch 057 mm) water,seal. r instructions. 45 1003.3.1 Grease trap'capacity. Grease traps the 1003.11 Gamges'and service station's. Where automobiles are serviced, washed where shall .have greased, repaired or or gasoline t w'grease. retention capacity - indicated in Table 1003.3.1 for'the is dispensed, separators shall have a .minimum capacity :of flow +through rates indicated. 6 cubic feet (0.168 M3) for the first 100 squaie feet (9.3 m2) + of area to: drained, plus 1 cubic foot (0:28 m3) for each µ; zi additional 100:square ,feet'(9.3 m3) of area to be drained into TABLE 9003.3.1 h CAPACITY OF GREASE TRAPS fs ,: . -a r- I OTAL!FLOW= THROUfiH RATING e + >* (9Pm) :GREASE RETENTION CAPACITY - ::{pounds) 6 12 ' °i4t :x20 .. y.. 12 24 45 30 18 .36 20 - 40 ,. 25 -50 zi ,35 70 50 100 For SI: I. gpm = 3.785 Um, 1 pound = 0.454 kg. 1003.3.2 hate of "flow "controls. Grease :traps :shall be *. uipped with :devices to control the rate of water flow so that the water flow does not exceed the rated flow The flow - :' > ,cohtrol-device shall be vented and terminate not less than 6'inches (152 nun) above the flood rim -level or installed in accordance with the manufacturer's instructions. ,'°'1003.4 `Efficiency of interceptors. interceptors shall be rated for efficiency 40015 Interceptors required. An interceptor shall be ' :required to receive the 'drainage from fixtures and equipment with grease -laden waste located in food preparation areas such as in restaurants, hotel kitchens, hospitals, school kitchens, bars, factory cafeterias, or restaurants and clubs. 1603.6 Separators required. At repair,garages; gasoline sta- tions with grease racks, grease pits or work racks; and at facto - ries where oily and flammable liquid wastes are produced, sep- arators shall be installed into which all oil- bearing, 'grease- bearing or flammable wastes shall be discharged before temptying in the building drainage system or other point of dis- posal. _ - -- _. 1003.7 'Separation of liquids. A mixture of treated or untreated light and heavy liquids with various specific gravities t e separator.,l?arlung garages uiwhieh servicmg, repainng or washing is not conducted,., and in which gasoline is not dis -. *nsed, shall not require, a separatoi Areas of commercial . x garages utilized oily fof torage -of automobiles i,are. not Y' ' 'required io'be drained through s "separator "r 1003:8 :Sand :lriterceptors ,m icommerclal establistimerits. Sand.and'gimilai interceptors for.heavy solids s lull be designed sand located so as to be ,provided with ready faccess for cleaning, 'and shall have`a water seal of not l'es`s than .6- inches (152 nun). 1.. .y n ,. 1003.9 Laundries. Comrnercial laundries shall be -equipped with..an interceptor. with a wire basket or similar;iievice,�remov- -..� ,able :for cleaning, that :prevents;passage into the :drainage sys- tem of solids 1/2 inch (12.7 mm) or larger m .size, string, rags, ` buttons, -or other materials detrimental to the ,public sewerage .system., 1003.10,Botiling establishments. 'Sottlmg plants shall :dis- charge process wastes into an interceptor that will provide for the separation of broken glass or other solids before discharg- ing waste into the drainage system. 1003.11 Slaughterhouses. ;Slaughtering room and dressing room drains shall,be equipped with approved separators. iThe ,separator shall ,prevent the discharge into the drainage system of feathers, entrails and other materials that cause clogging. , 1003.12 Venting of interceptors and separators.. Interceptors and separators shall be designed,so as not to become air bound where tight covers are utilized. Each interceptor .or separator shall be vented where subject to a loss of trap seal. 1003.13 Access and maintenance of interceptors and sepa- rators. Access shall be.provided to -each interceptor and sepa- ratorfor service and, maintenance. Interceptors and separators shall be maintained by periodic removal of accumulated grease, scum, oil, or other floating substances and-solids depos- ited in the interceptor or separator. SECTION 1004 MATERIALS, JOINTS AND CONNECTIONS 1004.1 General. The materials and methods utilized for the construction and installation of traps, interceptors and separa- tors shall comply with this chapter -and the - applicable provi- sions of Chapter 7 The fittings shall not have ledges, shoulders or reductions capable of retarding or obstructing flow of the piping. 72 1997 INTERNATIONAL PLUMBING CODE CHAPTER 11 STORM DRAINAGE SECTION 1101 GENERAL 1101.1 Scope. The provisions of this chapter shall govern the materials, design, construction and installation of storm drain- age. 1101.2 Where required. All roofs, paved areas, yards, courts and courtyards shall drain into a separate storm sewer system, or a combined sewer system, or to an approved place of dis- posal. For one- and two- family dwellings, and where approved, storm water is permitted to discharge onto flat areas, such as streets or lawns, provided that the storm water flows away from the building. 11013 Prohibited drainage. Storm water shall not be drained into sewers intended for sewage only 1101.4 Tests. The conductors and the building storm drain shall be tested in accordance with Section 312. 1101.5 Continuous flow. The size of a drainage pipe shall not be reduced in the direction of flow 1101.6 Fittings and connections. All connections and changes in direction of the storm drainage system shall be made with approved drainage -type fittings in accordance with Table 706.3 The fittings shall not obstruct or retard flow in the sys- tem. 1101.7 Roof design. Roofs shall be designed for the maximum possible depth of water that will pond thereon as determined by the relative levels of roof deck and overflow weirs, scuppers, edges or serviceable drains in combination with the deflected structural elements. In determining the maximum possible depth of water, all primary roof drainage means shall be assumed to be blocked. 1101.8 Cleanouts required. Cleanouts shall be installed in the storm drainage system and shall comply with the provisions of this code for sanitary drainage pipe cleanouts. 1101.9 Backwater valves. Backwater valves installed in a storm drainage system shall conform to Section 715 SECTION 1102 MATERIALS 1102.1 General. The materials and methods utilized for the construction and installation of storm drainage systems shall comply with this section and the applicable provisions of Chap- ter 7 1102.2 Inside storm drainage conductors. Inside storm drainage conductors installed above ground shall conform to one of the standards listed in Table 702.1 1102.3 Underground building storm drain pipe. Under- ground building storm drain pipe shall conform to one of the standards listed in Table 702.2. 1102.4 Building storm sewer pipe. Building storm sewer pipe shall conform to one of the standards listed in Table 1102.4 1102.5 Subsoil drain pipe. Subsoil drains shall be open - jointed, horizontally split or perforated pipe conforming to one of the standards listed in Table 1102.5 1102.6 Roof drains. Roof drains shall conform to ASME A112.21.2. 1102.7 Fittings. Pipe fittings shall be approved for installation with the piping material installed, and shall conform to the respective pipe standards or one of the standards listed in Table 1102.7 The fittings shall not have ledges, shoulders or reduc- tions capable of retarding or obstructing flow in the piping. Threaded drainage pipe fittings shall be of the recessed drain- age type. TABLE 1102.4 BUILDING STORM SEWER PIPE MATERIAL STANDARD Acrylonitrile butadiene styrene ASTM D 2661, ASTM D (ABS) plastic pipe 2751, ASTM F 628 Asbestos- cement pipe ASTM C 428 Cast -iron pipe ASTM A 74, ASTM A 888; Vitrified clay pipe CISPI 301 Concrete pipe ASTM C 14, ASTM C 76; CSA A257 1, CSA CAN /CSA A257.2 Copper or copper -alloy tubing ASTM B 75, ASTM B 88; (Type K, L, M or DWV) ASTM B 251, ASTM B 306 Polyvinyl chloride (PVC) ASTM D 2665; ASTM D plastic pipe (Type DWV, 3034, ASTM F 891, SDR26, SDR35, SDR41, CSA- B182.2; CSA PS50 or PS100) CAN /CSA- B182.4 Vitrified clay pipe ASTM C 4, ASTM C 700 TABLE 1102.5 SUBSOIL DRAIN PIPE MATERIAL STANDARD Asbestos - cement pipe ASTM C 508 Cast -iron pipe ASTM A 74, ASTM A 888, CISPI 301 Polyethylene (PE) plastic pipe ASTM F 405 Polyvinyl chloride (PVC) plastic pipe (Type Sewer Pipe, PS25, PS50 or PS100) ASTM D 2729; ASTM F 891, CSA - 13182.2; CSA CAN /CSA - 13182.4 Vitrified clay pipe ASTM C 4, ASTM C 700 1997 INTERNATIONAL PLUMBING CODE 73 1103-1106.6 TABLE 1102.7 PIPE FITTINGS MATERIAL STANDARD Acrylonitrile butadiene styrene ASTM D 2468 (ABS) plastic Cast iron ASME B16.4, ASME 1316.12; ASTM A 888 Chlorinated polyvinyl chloride ASTM F 437; ASTM F 438; (CPVC) plastic ASTM F 439 Copper or copper alloy ASME B16.15, ASME B16.18; ASME B16.22; ASME 1316.23; ASME B16.26; ASME 1316.29; ASME 1316.32 Gray iron and ductile iron AWWA C110 Malleable iron ASME 1316.3 Plastic, general ASTM F 409 Polyethylene (PE) plastic ASTM D 2609 Polyvinyl chloride (PVC) ASTM D 2464, ASTM D plastic 2466; ASTM D 2467; CSA CAN /CSA- 13137.2 Steel ASME 1316.9; ASME 1316.11, ASME B16.28 SECTION 1103 TRAPS 1103.1 Main trap. Leaders and storm drains connected to a combined sewer shall be trapped. Individual storm water traps shall be installed on the storm water drain branch serving each conductor, or a single trap shall be installed in the main storm drain just before its connection with the combined building sewer or the public sewer. 1103.2 Material. Storm water traps, when required, shall be of the same material as the piping system to which they are attached. 1103.3 Size. Traps for individual conductors shall be the same size as the horizontal drain to which they are connected. 1103.4 Cleanout. An accessible cleanout shall be installed on the building side of the trap. SECTION 1104 CONDUCTORS AND CONNECTIONS 1104.1 Prohibited use. Conductor pipes shall not be used as soil, waste or vent pipes, and soil, waste or vent pipes shall not be used as conductors. 1104.2 Combining storm with sanitary drainage. The sani- tary and storm drainage systems of a structure shall be entirely separate except where combined sewer systems are utilized. Where a combined sewer is utilized, the building storm drain shall be connected in the same horizontal plane through a single -wye fitting to the combined sewer at least 10 feet (3048 mm) downstream from any soil stack. 1104.3 Floor drains. Floor drains shall not be connected to a storm drain. SECTION 1105 ROOF DRAINS 1105.1 Strainers. Roof drains shall have strainers extending not less than 4 inches (102 mm) above the surface of the roof immediately adjacent to the roof drain. Strainers shall have an available inlet area, above roof level, of not less than one and one -half times the area of the conductor or leader to which the drain is connected. 1105.2 Flat decks. Roof drain strainers for use on sun decks, parking decks and similar areas that are normally serviced and maintained shall comply with Section 1105 1 or shall be of the flat- surface type, installed level with the deck, with an avail- able inlet area not less than two times the area of the conductor or leader to which the drain is connected. 1105.3 Roof drain flashings. The connection between roofs and roof drains which pass through the roof and into the interior of the building shall be made water tight by the use of approved flashing material. SECTION 1106 SIZE OF CONDUCTORS, LEADERS AND STORM DRAINS 1106.1 General. The size of the vertical conductors and lead- ers, building storm drains, building storm sewers, and any hori- zontal branches of such drains or sewers shall be based on the 100 -year hourly rainfall rate indicated in Figure 1106.1 or on other rainfall rates determined from approved local weather data. 1106.2 Vertical conductors and leaders. Vertical conductors and leaders shall be sized for the maximum projected roof area, in accordance with Table 1106.2. 1106.3 Building storm drains and sewers. The size of the building storm drain, building storm sewer and their hori- zontal branches having a slope of one -half unit or less vertical in 12 units horizontal (4- percent slope) shall be based on the maximum projected roof area in accordance with Table 1106.3 The minimum slope of horizontal branches shall be one - eighth unit vertical in 12 units horizontal (1- percent slope) unless otherwise approved. 1106.4 Vertical walls. In sizing roof drains and storm drainage piping, one -half of the area of any vertical wall that diverts rain- water to the roof shall be added to the projected roof area for inclusion in calculating the required size of vertical conductors, leaders and horizontal storm drainage piping. 1106.5 Parapet wall scupper location. Parapet wall roof drainage scupper and overflow scupper location shall comply with the requirements of the building code. 1106.6 Size of roof gutters. The size of semicircular gutters shall be based on the maximum projected roof area in accord- ance with Table 1106.6. 74 1997 INTERNATIONAL PLUMBING CODE TABLE 1106.2 - TABLE 1106.3 TABLE 1106.2 SIZE OF VERTICAL CONDUCTORS AND LEADERS DIAMETER HORIZONTALLY I ROJECTED ROOF AREA (aquaro test) OF LEADER Rainfall rate (Inches per hour) (Inches)" 1 1/8 unit vertical in 12 units horizontal (1- percent slope) 3 4 6 6 7 8 9 10 11 12 2 2, 1,504 1,253 720 575 480 410 360 320 290 260 240 3 8, W9,20O6,130 4,280 2,200 1,760 1,470 1,260 1,100 980 880 800 730 4 18, 27,600 20,700 4,600 3,680 3,070 2,630 2,300 2,045 1,840 1,675 1,530 5 34, 109,000 72,800 8,650 6,920 5,765 4,945 4,325 3,845 3,460 3,145 2,880 6 54,000 27,000 17,995 13,500 10,800 9,000 7,715 6,750 6,000 1 5,400 4,910 4,500 8 116,000 1. 58,000 38,660 29,000 23,200 19,315 16,570 14,500 12,890 1 11,600 10,545 9,660 ........ ......n - r... w , a -4--- iwl = V.VYL7 m- a Sizes indicated are the diameter of circular piping. This table is applicable to piping of other shapes provided the cross - sectional shape fully encloses a circle of the diameter indicated in this table. TABLE 1106.3 SIZE OF HORIZONTAL STORM DRAINAGE PIPING SIZE OF HORIZONTAL HORIZONTALLY PROJECTED ROOF AREA (square feet) PIPING Rainfall rate nches (I per hour) (Inches) 1 2 3 4 5 6 1/8 unit vertical in 12 units horizontal (1- percent slope) 3 3,288 1,644 1,096 822 657 548 4 7,520 3,760 2,506 1,800 1,504 1,253 5 13,360 6,680 4,453 3,340 2,672 2,227 6 21,400 10,700 7,133 5,350 4,280 3,566 8 46,000 23,000 15,330 11,500 9,200 7,600 10 82,800 41,400 27,600 20,700 16,580 13,800 12 133,200 66,600 44,400 33,300 26,650 22,200 15 218,000 109,000 72,800 59,500 47,600 39,650 1/4 unit vertical in 12 units horizontal (2- percent slope) 3 4,640 2,320 1,546 1,160 928 773 4 10,600 5,300 3,533 2,650 2,120 1,766 5 18,880 9,440 6,293 4,720 3,776 3,146 6 30,200 15,100 10,066 7,550 6,040 5,033 8 65,200 32,600 21,733 16,300 13,040 10,866 10 116,800 58,400 38,950 29,200 23,350 19,450 12 188,000 94,000 62,600 47,000 37,600 31,350 15 336,000 168,000 112,000 84,000 67,250 56,000 1/2 unit vertical in 12 units horizontal (4- percent slope) 3 6,576 3,288 2,295 1,644 1,310 1,096 4 15,040 7,520 5,010 3,760 3,010 2,500 5 26,720 13,360 8,900 6,680 5,320 4,450 6 8 42,800 21,400 13,700 10,700 8,580 7,140 92,000 46,000 30,650 23,000 18,400 15,320 10 171,600 85,800 55,200 41,400 33,150 27,600 12 266,400 133,200 88,800 66,600 53,200 44,400 15 476,000 238,000 158,800 119,000 95,300 79,250 1997 INTERNATIONAL PLUMBING CODE 75 FIGURE 1106.1 FIGURE 1106.1 —continued 100 -YEAR, 1 -HOUR RAINFALL (inches) For SI: 1 inch = 25 4 mm. WESTERN UNITED STATES Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington, DC. 78 1997 INTERNATIONAL PLUMBING CODE FIGURE 1106.1 170° 175° 180° 175° 170° 165° 180° 155° 150° 145° 140° 1350 130 SAI 1 ROW .4 BARTER �o NT J.P.O., BA Y 5 - .................. .;. .5 5 ......... ALASKA i 100 0 1 200 300 , 'KO i EB FT. YUKON 1,6 J;t .. _, 6 ALE" I G MBEL NOME NE CAPE MCGRATH IS THWAY NIVAK - %; 1 1.2 IN M 1.2 1.2 8 1 KOD K NAS U ST. PA 4.57 PORT 1 GEORGE HEIDEN ' 1 CHIG K COL BAY .2 DUTCH 1 .84 SHEMYAAFB ,gg e ,do o ° ATKA ATTU o q d AD A ACHITKA 170° 175° 180° 175° 170° 165° 160° 155° 150° 145° 140° 135° 13 FIGURE 1106.1 - -continued 100 -YEAR, 1 -HOUR RAINFALL (inches) ALASKA For SI: 1 inch = 25 4 mm. Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington, DC. 1997 INTERNATIONAL PLUMBING CODE 79 FIGURE 1106.1 FIGURE 1106.1 —continued 100 -YEAR, 1 -HOUR RAINFALL (inches) HAWAII For SI: 1 inch = 25 4 mm. Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington, DC. 80 1997 INTERNATIONAL PLUMBING CODE m FIGURE 1106.1 —continued 100 -YEAR, 1 -HOUR RAINFALL (inches) HAWAII For SI: 1 inch = 25 4 mm. Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington, DC. 80 1997 INTERNATIONAL PLUMBING CODE TABLE 1106.6 TABLE 1106.6 SIZE OF SEMICIRCULAR ROOF GUTTERS DIAMETER HORIZONTALLY PROJECTED ROOF AREA (square feet) OF GUTTERS RAINFALL RATE (Inches per hour) (Inches) 1 2 3 F 4 5 6 1/16 unit vertical in 12 units horizontal (0.5- percent slope) 3 680 340 226 170 136 113 4 1,440 720 480 360 288 240 5 2,500 1,250 834 625 500 416 6 3,840 1,920 1,280 960 768 640 7 5,520 2,760 1,840 1,380 1,100 918 8 7,960 3,980 2,655 1,990 1,590 1,325 10 14,400 7,200 4,800 3,600 2,880 2,400 1/8 unit vertical in 12 units horizontal (1- percent slope) 3 960 480 320 240 192 160 4 2,040 1,020 681 510 408 340 5 3,520 1,760 1,172 880 704 587 6 5,440 2,720 1,815 1,360 1,085 905 7 7,800 3,900 2,600 1,950 1,560 1,300 8 11,200 5,600 3,740 2,800 2,240 1,870 10 20,400 10,200 6,800 5,100 4,080 3,400 1/4 unit vertical in 12 units horizontal (2- percent slope) 3 1,360 680 454 340 272 226 4 2,880 1,440 960 720 576 480 5 5,000 2,500 1,668 1,250 1,000 834 6 7,680 3,840 2,560 1,920 1,536 1,280 7 11,040 5,520 3,860 2,760 2,205 1,840 8 15,920 7,960 5,310 3,980 3,180 2,655 10 28,800 14,400 9,600 7,200 5,750 4,800 1/2 unit vertical in 12 units horizontal (4- percent slope) 3 1,920 960 640 480 384 320 4 4,080 2,040 1,360 1,020 816 680 5 7,080 3,540 2,360 1,770 1,415 1,180 6 11,080 5,540 3,695 2,770 2,220 1,850 7 15,600 7,800 5,200 3,900 3,120 2,600 8 22,400 11,200 7,460 5,600 4,480 3,730 10 40,000 20,000 13,330 10,000 8,000 6,660 For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 mz 1997 INTERNATIONAL PLUMBING CODE 81 1107 — 1111.3.4 SECTION 1107 SECONDARY (EMERGENCY) ROOF DRAINS 1107.1 Secondary drainage required. Secondary (emer- gency) roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water will be entrapped if the primary drains allow buildup for any reason. 1107.2 Separate systems required. Secondary roof drain sys- tems shall have piping and point of discharge separate from the primary system. Discharge shall be above grade in a location which would normally be observed by the building occupants or maintenance personnel. 1107.3 Sizing of secondary drains. Secondary (emergency) roof drain systems shall be sized in accordance with Section 1106 based on the rainfall rate for which the primary system is sized but with the sizing adjusted by dividing the values for hor- izontally projected roof area in Tables 1106.2, 1106.3 and 1106.6 by two. The minimum cross - sectional area of an over- flow scupper shall be three times the cross - sectional area of the primary roof drain and the scupper shall have a minimum open- ing dimension of 4 inches (102 mm). The flow through the pri- mary system shall not be considered when sizing the secondary roof drain system. SECTION 1108 COMBINED SANITARY AND STORM SYSTEM 1108.1 Size of combined drains and sewers. The size of a combination sanitary and storm drain or sewer shall be com- puted in accordance with the method in Section 1106.3 The fixture units shall be converted into an equivalent projected roof or paved area. Where the total fixture load on the com- bined drain is less than or equal to 256 fixture units, the equiva- lent drainage area in horizontal projection shall be taken as 4,000 square feet (372 m2). Where the total fixture load exceeds 256 fixture units, each additional fixture unit shall be considered the equivalent of 15.6 square feet (1.5 m2) of drain- age area. These values are based on a rainfall rate of 1 inch (25 mm) per hour. SECTION 1109 VALUES FOR CONTINUOUS FLOW 1109.1 Equivalent roof area. Where there is a continuous or semicontinuous discharge into the building storm drain or building storm sewer, such as from a pump, ejector, air condi- tioning plant or similar device, each gallon per minute (L /m) of such discharge shall be computed as being equivalent to 96 square feet (9 m2) of roof area, based on a rainfall rate of 1 inch (25 mm) per hour. SECTION 1110 CONTROLLED FLOW ROOF DRAIN SYSTEMS 1110.1 General. The roof of a structure shall be designed for the storage of water where the storm drainage system is engi- neered for controlled flow The controlled flow roof drain sys- tem shall be an engineered system in accordance with this sec- tion and the design, submittal, approval, inspection and testing requirements of Section 105 4 The controlled flow system shall be designed based on the required rainfall rate in accord- ance with Section 1106.1. 1110.2 Control devices. The control devices shall be installed so that the rate of discharge of water per minute shall not exceed the values for continuous flow as indicated in Section 1109 1. 1110.3 Installation. Runoff control shall be by control devices. Control devices shall be protected by strainers. 1110.4 Minimum number of roof drains. Not less than two roof drains shall be installed in roof areas 10,000 square feet (930 m2) or less and not less than four roof drains shall be installed in roofs over 10,000 square feet (930 m2) in area. SECTION 1111 SUMPS 1111.1 Subsoil drains. Subsoil drains shall be open jointed, horizontally split or perforated pipe conforming to one of the standards listed in Table 1102.5 Such drains shall not be less than 4 -inch (102 mm) diameter. Where the building is subject to backwater, the subsoil drain shall be protected by an accessi- bly located backwater valve. Subsoil drains shall discharge to a trapped area drain, sump, dry well or approved location above ground. The subsoil sump shall not be required to have either a gas -tight cover or a vent. 1111.2 Building subdrains. Building subdrains located below the public sewer level shall discharge into a sump or receiving tank, the contents of which shall be automatically lifted and dis- charged into the drainage system as required for building sumps. 1111.3 Pumping system. The sump pump, pit and discharge piping shall conform to Sections 1111.3 1 through 1111.3 4 1111.3.1 Pump capacity and head. The sump pump shall be of a capacity and head appropriate to anticipated use require- ments. 1111.3.2 Construction. The sump pit shall not be less than 18 -inch (457 mm) diameter and shall be constructed of tile, steel, plastic, cast iron, concrete or other approved material, with a removable cover adequate to support anticipated loads in area of use. The pit floor shall provide permanent support for the pump. 1111.3.3 Electrical. Electrical service outlets, when required, shall meet the requirements of NFPA 70. 1111.3.4 Piping. Discharge piping shall meet the require- ments of Section 1102.2, Section 1102.3 or Section 1102.4 and shall include a gate valve and a full flow check valve. Size and fittings shall be the same size as, or larger than, pump discharge tapping. 82 1997 INTERNATIONAL PLUMBING CODE CHAPTER 12 FUEL PIPING SECTION 1201 GENERAL 1201.1 Scope. The provisions of this chapter shall govern the materials, design and installation of fuel piping. 1201.2 Fuel piping systems. All fuel piping systems shall be sized, installed, tested and placed in operation in accord- ance with the requirements of the International Mechanical Code'", Chapter 13, Fuel Gas Piping, or Appendix G of this code. 1997 INTERNATIONAL PLUMBING CODE 83 84 1997 INTERNATIONAL PLUMBING CODE CHAPTER 13 SPECIAL PIPING AND STORAGE SYSTEMS SECTION 1301 GENERAL 1301.1 Scope. The provisions of this chapter shall govern the design and installation of piping and storage systems for non- flammable medical gas systems and nonmedical oxygen sys- tems. SECTION 1302 MEDICAL GASES 1302.1 Nonflammable medical gases. Nonflammable medi- cal gas systems, inhalation anesthetic systems and vacuum pip- ing systems shall be designed and installed in accordance with NFPA 99C. Exceptions: 1 This section shall not apply to portable systems or cyl- inder storage. 2. Vacuum system exhaust shall comply with the mechan- ical code. SECTION 1303 OXYGEN SYSTEMS 1303.1 Design and installation. Nonmedical oxygen systems shall be designed and installed in accordance with NFPA 50 and NFPA 51 1997 INTERNATIONAL PLUMBING CODE 85 1997 INTERNATIONAL. PLUMBING CODE 86 CHAPTER 14 REFERENCED STANDARDS NOTE. This chapter has been revised in Its entirety. This chapter lists the standards that are referenced in various sections of this document. The standards are listed herein by the pro- mulgating agency of the standard, the standard identification, the effective date and title, and the section or sections of this document that reference the standard. The application of the referenced standards shall be as specified in Section 102.8. ANSI American National Standards Institute 11 West 42nd Street New York, NY 10036 4301 N. Fairfax Drive, Suite 425 Referenced Standard Arlington, VA 22203 in code reference section number number Title in code Z4.3 -95 Minimum Requirements for Nonsewered Waste - Disposal Systems 311.1 Z21.22 -86 Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems -with 1990 Addendum 504.2, 504.5 Z124.1 -95 Plastic Bathtub Units 407.1 Z124.2 -95 Plastic Shower Receptors and Shower Stalls 417.1 Z124.3 -95 Plastic Lavatories 416.1, 416.2 Z124 4-86 Plastic Water Closet Bowls and Tanks 420.1 415.1, 418.1 Z124.6 -90 Plastic Sinks in code 1997 INTERNATIONAL PLUMBING CODE S7 Air- Conditioning & Refrigeration Institute 4301 N. Fairfax Drive, Suite 425 ARI Arlington, VA 22203 Referenced Standard in code reference section number number Title 1010 -94 Self- Contained, Mechanically- Refrigerated Drinking -Water Coolers 410.1 American Society of Mechanical Engineers East 47th Street ASME New York, , NY 10017 New Referenced Standard in code reference section number number Title A13.1 -51 Scheme for the Identification of Piping Systems 608.8 ' Al 12.1.2-91 Air Gaps in Plumbing Systems 608.1 A112.6.1 -88 Supports for Off- the -Floor Plumbing Fixtures for Public Use 4054.3 A112.14.1 -75 Backwater Valves 715.3 A112.18.1M -94 Brass Plumbing Fixture Units -with 1995 Errata 424.1 A112.19.1M -94 Enameled Cast Iron Plumbing Fixtures 407 1, 410.1, 415.1, 416.1, 418.1 A112.19.2 -95 Vitreous China Plumbing Fixtures -with 1996 Errata 408.1, 410.1, 416.1, 418.1, 419 1, 420.1 A112.19.3 -87 Stainless Steel Plumbing Fixtures (Designed for Residential Use) 415.1, 416.1, 418.1 A112.19 4M -94 Porcelain Enameled Formed Steel Plumbing Fixtures 407.1, 416.1, 418.1 A112.19.5 -79 Trim for Water - Closet Bowls, Tanks, and Urinals 425.4 A112.19.6 -95 Hydraulic Performance Requirements for Water Closets and Urinals 419.1, 420.1 A112.19 7 -95 Whirlpool Bathtub Appliances 421.1 A112.19.8 -87 Suction Fittings for Use in Swimming Pools, Wading Pools, Spas, Hot Tubs, and Whirlpool Bathtub Appliances 421.4 A112.19.9 -91 Non - Vitreous Ceramic Plumbing Fixtures 407.1, 408.1, 410.1, 415.1, 416.1, 417.1, 418.1, 420.1 A112.21.1 -91 Floor Drains 412.1 A112.21.2 -91 Roof Drains 1102.6 (Note: A112.26.1 -84 has been discontinued and has not been replaced by ASME.) 1997 INTERNATIONAL PLUMBING CODE S7 REFERENCED STANDARDS ASMF.- continued 131.20.1 -83 Pipe Threads, General Purpose (inch) 605.10.3, 605.12.3, 605.14 4, 605 16.3, 605 17 1, 605.20.3, 705.2.3, 705.4.3, 705.7 4, 705 10.1, 705 12.3 B16.3 -92 Malleable Iron Threaded Fittings Table 605.6, Table 702.4, Table 1102.7 B16.4 -92 Cast Iron Threaded Fittings Table 605.6, Table 702.4, Table 1102.7 B16.9 -93 Factory-Made Wrought Steel Buttwelding Fittings Table 605.6, Table 702.4, Table 1102.7 B16.11 -91 Forged Steel Fittings, Socket- Welding and Threaded Table 605.6, Table 702.4, Table 1102.7 B16.12 -91 Cast -Iron Threaded Drainage Fittings Table 605.6, Table 702.4, Table 1102.7 B16.15 -85 Cast Bronze Threaded Fittings Table 605.6, Table 702.4, Table 1102.7 B16.18 -84 Cast Copper Alloy Solder Joint Pressure Fittings Table 605.6, Table 702.4, Table 1102.7 B16.22 -95 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings Table 605.6, Table 702.4, Table 1102.7 B16.23 -92 Cast Copper Alloy Solder Joint Drainage Fittings (DWV�-with 1994 Errata Table 605.6, Table 702.4, Table 1102.7 B16.26 -88 Cast Copper Alloy Fittings for Flared Copper Tubes Table 605.6, Table 702.4, Table 1102.7 B16.28 -94 Wrought Steel Buttwelding Short Radius Elbows and Returns Table 605.6, Table 702.4, Table 1102.7 B16.29 -94 Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings -DWV Table 605.6, Table 702.4, Table 1102.7 B16.32 -92 Cast Copper Alloy Solder Joint Fittings for Solvent Drainage Systems Table 605.6, Table 702.4, Table 1102.7 American Society of Sanitary Engineering ASSE 28901 lake, O 44145 Westlake, OH 44145 Standard Referenced reference in code number Title section number 1001 -90 Performance Requirements for Pipe Applied Atmospheric Type Vacuum Breakers 425.2, Table 608.1, 608.13.6 1002 -86 Performance Requirements for Water Closet Flush Tank Ball Cocks 425.3.1, Table 608.1 1003 -95 Performance Requirements for Water Pressure Reducing Valves for Domestic Water Supply Systems 604.8 1004 -90 Performance Requirements for Commercial Dishwashing Machines 409.1 1005 -86 Performance Requirements for Water Heater Drain Valves -with 1986 Revision 501.3 1006 -89 Performance Requirements for Residential Use (Household) Dishwashers 409.1 1007 -92 Performance Requirements for Home Laundry Equipment 406.1, 406.2 1008 -89 Performance Requirements for Household Food Waste Disposer Units 413.1 1009 -90 Performance Requirements for Commercial Food Waste Grinder Units 413.1 1010 -82 Performance Requirements for Water Hammer Arresters -with 1982 Revision 604.9 1011 -95 Performance Requirements for Hose Connection Vacuum Breakers Table 608.1, 608.13.6 1012 -95 Performance Requirements for Backflow Preventers with Intermediate Atmospheric Vent Table 608.1, 608.13.3, 608.16.1, 608.16.2 1013 -93 Performance Requirements for Reduced Pressure Principle Backflow Preventers Table 608.1, 608.13.2, 608.16.2 1014 -90 Performance Requirements for Handheld Showers 424.3 1015 -93 Performance Requirements for Double Check Backflow Prevention Assembly -with 1993 Revision Table 608.1, 608.13.7 1016 -90 Performance Requirements for Individual Thermostatic, Pressure Balancing and Combination Control Valves for Bathing Facilities 4244 1018-56 Performance Requirements for Trap Seal Primer Valves; Water Supply Fed -with 1986 Revision 1002.4 1019 -95 Performance Requirements for Wall Hydrants, Freezeless, Automatic Draining, Anti - Backflow Types Table 608.1, 608.13.6 1020 -90 Performance Requirements for Pressure Vacuum Breaker Assembly Table 608.1, 608.13.5 1024 -94 Performance Requirements for Dual Check Valve Type Backflow Preventers (for Residential Supply Service or Individual Outlets) Table 608.1 1025 -78 Performance Requirements for Diverters for Plumbing Faucets with Hose Spray, Anti- Siphon Type, Residential Applications 424.2 1032 -80 Performance Requirements for Dual Check Valve Type Backflow Preventers; for Carbonated Beverage Dispensers -Post Mix -Types Table 608.1, 608.16.1 1035 -95 Performance Requirements for Laboratory Faucet Backflow Preventers Table 608.1, 608.13.6 1037 -90 Performance Requirements for Pressurized Flushing Devices for Plumbing Fixtures 425.2 1044 -86 Performance Requirements for Trap Seal Primer Valves; Drainage Type 1002 1047 -95 Performance Requirements for Reduced Pressure Detector Assembly Backflow Preventers Table 608.1 1048 -95 Performance Requirements for Double Check Detector Assembly Backflow Preventer Table 608.1, 608.13.7 1051 -96 Performance Requirements for Air Admittance Valves for Plumbing Drainage Systems, Fixture and Branch Devices 9171 1052 -94 Performance Requirements for Hose Connection Backflow Preventers Table 608.1, 608.13 6 1056 -93 Back Siphonage Vacuum Breaker Table 608.1, 608.13.8 5010 - 1013 -1 -91 Field Test Procedure for a Reduced Pressure Principle Assembly Using a Differential Pressure Gauge with August 1992 Revisions 312.9 5010- 1015 -1 -91 Field Test Procedure for a Double Check Valve Assembly Using a Duplex Gauge -with August 1992 Revisions 312.9 5010 - 1015 -2 -91 Field Test Procedure for a Double Check Valve Assembly Using a Differential Pressure Gauge -High- and Low- Pressure Hose Method -with August 1992 Revisions 312.9 88 1997 INTERNATIONAL PLUMBING CODE REFERENCED STANDARDS ASSE- continued 5010- 1015 -3-91 Field Test Procedure for a Double Check Valve Assembly Using a Differential 312.9 Pressure Gauge -High Pressure Hose Method -witb August 1992 Revisions 5010 - 1015 -4-91 Field Test Procedure for a Double Check Valve Assembly Using a Sight Tube -with August 1992 Revisions 312.9 5010 - 1020 -1 -91 Field Test Procedure for a Pressure Vacuum Breaker Assembly 312.9 5010 - 1047 -1 -91 Field Test Procedure for a Reduced Pressure Detector Assembly Using a Differential Referenced Pressure Gauge -with August 1992 Revisions 312.9 5010- 1048 -1 -91 Field Test Procedure for a Double Check Detector Assembly Using a Duplex Gauge -with August 1992 Revisions 312.9 5010- 1048 -2 -91 Field Test Procedure for a Double Check Detector Assembly Using a Differential Title Pressure Gauge -High- and Low- Pressure Hose Method -with August 1992 Revisions 312.9 5010- 1048 -3 -91 Field Test Procedure for a Double Check Detector Assembly Using a Differential Specification for Cast Iron Soil Pipe and Fittings Table 702.1, Table 702.2, Table 702.3, Table 702.4 Pressure Gauge- High- Pressure Hose Method -with August 1992 Revisions 312.9 5010 -1048 -4-91 Field Test Procedure for a Double Check Detector Assembly Using a Sight Tube -with August 1992 Revisions 312.9 1997 INTERNATIONAL PLUMBING CODE 89 American Society for Testing and Materials 100 Barr Harbor Drive ASTM West Conshohocken, PA 19428 -2959 Referenced Standard in code reference section number number Title A 53 -94 Specification for Pipe, Steel, Black and Hot - Dipped, Zinc - Coated Welded and Seamless Table 605.4, Table 605.5, Table 702.1 A 74-94 Specification for Cast Iron Soil Pipe and Fittings Table 702.1, Table 702.2, Table 702.3, Table 702.4 708.2, Table 1102.4, Table 1102.5 A 733-89 Specification for Welded and Seamless Carbon Steel and Austenitic Stainless Steel Pipe Nipples Table 605.8 A 888 -95 Specification for Hubless Cast Iron Soil Pipe and Fittings for Table 702.1, Table 702.2, Table 702.3, Sanitary and Storm Drain, Waste, and Vent Piping Application Table 702.4, Table 1102.4, Table 1102.5, Table 1102.7 B 32 -94 Specification for Solder Metal 605.14.3, 605.15.4, 705.7.3, 705.8.3 B 42 -93 Specification for Seamless Copper Pipe, Standard Sizes Tale 605.4, Table 605.5, Table 702.1 B 43 -94 Specification for Seamless Red Brass Pipe, Standard Sizes Table 605.4, Table 605.5, Table 702.1 B 75 -95a Specification for Seamless Copper Tube Table 605 4, Table 605.5, Table 702.1, Table 702.2, Table 702.3, Table 1102.4 B 88-93a Specification for Seamless Copper Water Tube Table 605 4, Table 605.5, Table 702.1, Table 702.2, Table 702.3, Table 1102.4 B 152 -94 Specification for Copper Sheet, Strip Plate and Rolled Bar 402.3, 425.3.3, 902.2 B 251 -93 Specification for General Requirements for Wrought Seamless Copper and Copper -Alloy Tube Table 605.4, Table 605.5 Table 702.1, Table 702.2, Table 702.3, Table 1102.4 B 302 -92 Specification for Threadless Copper Pipe Table 605.4, Table 605.5, Table 702.1 B 306 -95a Specification for Copper Drainage Tube (DWV) Table 702.1, Table 1102.4 B 447 -93 Specification for Welded Copper Tube Table 605 4, Table 605.5 B 687 -96 Specification for Brass, Copper, and Chromium - Plated Pipe Nipples Table 605.8 B 813 -93 Standard Specification for Liquid and Paste Fluxes for Soldering Applications of Copper and Copper Alloy Tube 605.14.3, 605.15.4, 705.7.3, 705.8.3 B 828-92 Practice for Making Capillary Joints by Soldering of 605 14.3, 605.15.4, 705.7.3, 705.8.3 Copper and Copper Alloy Tube and Fittings C 4-95 Specification for Clay Drain Tile Table 702.3, Table 1102.4, Table 1102.5 C 14-95 Specification for Concrete Sewer, Storm Drain, and Culvert Pipe Table 702.3, Table 1102.4 C 76-95a Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe Table 702.3, Table 1102.4 C 296-93 Specification for Asbestos - Cement Pressure Pipe Table 605.4 C 425 -95 Specification for Compression Joints for Vitrified Clay Pipe and Fittings 705 13, 705.14 C 428-92 Specification for Asbestos - Cement Nonpressure Sewer Pipe Table 702.2, Table 702.3, Table 1102.4 C 443 -94 Specification for Joints for Circular Concrete Sewer and Culvert Pipe, Using Rubber Gaskets 705.6, 705.14 C 508-94 Specification for Asbestos- Cement Underdrain Pipe Table 1102.5 C 564 -95a Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings 705.5.2, 705.5.3, 705.14 C 700-95 Specification for Vitrified Clay Pipe, Extra Strength, Standard Strength, and Perforated Table 702.3, Table 1102.4, Table 1102.5 C 1053 -95 Specification for Borosilicate Glass Pipe and Fittings for Drain, Waste, and Vent (DWV) Applications Table 702.1, Table 702.4 D 1527 -94 Specification for Acrylonitrile- Butadiene - Styrene (ABS) Plastic Pipe, Schedules 40 and 80 Table 605.4 D 1785 -93 Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80 and 120 Table 605.4 (Note: ASTM D 1861 -88 has been discontinued and not replaced by ASTM.) (Note: ASTM D 1862 -88 has been discontinued and not replaced by ASTM) D 1869 -95 Specification for Rubber Rings for Asbestos - Cement Pipe 605 11, 605.21, 705.3, 705.14 D 2235 -93a Specification for Solvent Cement for Acrylonitrile- Butadiene - Styrene (ABS) Plastic Pipe and Fittings 605 10.2, 705.2.2 D 2239 -96 Specification for Polyethylene (PE) Plastic Pipe (SIDR -PR) Based on Controlled Inside Diameter Table 605 4 1997 INTERNATIONAL PLUMBING CODE 89 REFERENCED STANDARDS ASTM-- continued D 2241 -94 Specification for Poly (Vinyl Chloride) (PVC) Pressure -Rated Pipe (SDR- Series) Table 605.4 D 2282 -94 Specification for Acrylonitrile- Butadiene- Styrene (ABS) Plastic Pipe (SDR -PR) Table 605.4 (Note: ASTM D 231188 has been discontinued and not replaced by ASTM.) D 2464 -96 Specification for Threaded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80 'Table 605.6, Table 1102.7 D 2466 -94a Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40 Table 605.6, Table 1102.7 D 2467 -94 Specification for Socket -Type Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80 Table 605.6, Table 1102.7 D 2468 --93 Specification for Acrylonitrile- Butadiene- Styrene (ABS) Plastic Pipe Fittings, Schedule 40 Table 605.6, Table 1102.7 D 2564 -93 Specification for Solvent Cements for Poly Vinyl Chloride) (PVC) Plastic Pipe and Fittings 605.20.2, 705.12.2 D 2609 -96 Specification for Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe Table 605.6, Table 1102.7 D 2657 -96 Standard Practice for Heat - Joining Polyolefin Pipe and Fittings 605 18.2, 605.19.2 D 2661 -96 Specification for Acrylonitrile- Butadiene - Styrene (ABS) Schedule 40 Plastic Drain, Waste, and Vent Pipe and Fittings Table 702. 1, Table 702.2, Table 702.3, 705.2.2, Table 1102.4 D 2662 -96 Specification for Polybutylene (PB) Plastic Pipe (SDR -PR) Table 605.4 D 2665 -96 Specification for Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings Table 702.1, Table 702.2, Table 702.3, Table 1102.4 D 2666 -96 Specification for Polybutylene (PB) Plastic Tubing Table 605 4 D 2672 -96 Specification for Joints for IPS PVC Pipe Using Solvent Cement Table 605.4 D 2729 -96 Specification for Poly Vinyl Chloride) (PVC) Sewer Pipe and Fittings Table 1102.4 D 2737 -96 Specification for Polyethylene (PE) Plastic Tubing Table 605.4 D 2751 -96 Specification for Acrylonitrile- Butadiene - Styrene (ABS) Sewer Pipe and Fittings Table 702.3, Table 1102.4 D 2846 -93 Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot and Cold Water Distribution Systems Table 605.4, Table 605.6, 605.16.2 D 2855 -96 Standard Practice for Making Solvent - Cemented Joints with Poly (Vinyl Chloride) (PVC) Pipe and Fittings 605.20.2, 705 12.2 D 2949 -96 Specification for 3.25 -In Outside Diameter Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings Table 702.1, Table 702.2, Table 702.3 D 3034 -96 Specification for Type PSM Poly Vinyl Chloride) (PVC) Sewer Pipe and Fittings Table 702.3, Table 1102.4 D 3139 -96 Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals 605.10.1, 605.20.1 D 3212 -96 Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric Seals 705.2.1, 705 12.1 D 3309 -93 Specification for Polybutylene (PB) Plastic Hot Water Distribution Systems Table 605.4, Table 605.5, 605.18.2, 605.18.3 D 3311 -94 Specification for Drain, Waste and Vent (DWV) Plastic Fittings Patterns Table 702.4 D 4551 -96 Specification for Poly (Vinyl Chloride) (PVC) Plastic Flexible Concealed Water - Containment Membrane 417.5.3 F 405 -96 Specification for Corrugated Polyethylene (PE) Tubing and Fittings Table 1102.5 F 409-96 Specification for Thermoplastic Accessible and Replaceable Plastic Tube and Tubular Fittings Table 702.4, Table 1102.7 F 437 -96 Specification for Threaded Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80 Table 605.6, Table 1102.7 F 438-93 Specification for Socket -Type Chlorinated Poly Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 40 Table 605.6, Table 1102.7 F 439 -93a Specification for Socket -Type Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80 Table 605.6, Table 1102.7 F 441 -94 Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe, Schedules 40 and 80 Table 605.4, Table 605.5 F 442 -94 Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe (SDR -PR) Table 605.4, Table 605.5 F 477 -96 Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe 605.21, 705 14 F 493 -93a Specification for Solvent Cements for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe and Fittings 605 16.2 F 628-96 Specification for Acrylonitrile- Butadiene - Styrene (ABS) Schedule 40 Plastic Drain, Waste, and Vent Pipe with a Cellular Core Table 702. 1, Table 702.2, Table 702.3, 705.2.2, Table 1102.4 F 656-96 Specification for Primers for Use in Solvent Cement Joints of Poly (Vinyl Chloride) (PVC) Plastic Pipe and Fittings 705 12.2 F 876-93 Specification for Crosslinked Polyethylene (PEX) Tubing Table 605.4 F 877 -94 Specification for Crosslinked Polyethylene (PEX) Plastic Hot and Cold Water Distribution Systems Table 605.4, Table 605.5 F 891 -96 Specification for Coextruded Poly Vinyl Chloride) (PVC) Plastic Pipe with a Cellular Core Table 702.1, Table 702.2, Table 702.3, Table 1102.4, Table 1102.5 F 1281 -96 Specification for Cross - Linked Polyethylene /Aluminum/Cross- Linked Polyethylene (PEX -AL -PEX) Pressure Pipe Table 605.4, Table 605.5 F 1282 -96 Specification for Polyethylene /Aluminum/Polyethylene (PE- AL -PE) Composite Pressure Pipe Table 605.4 American Welding Society 550 N.W LeJeune Road AW � P O. Box 351040 Miami, FL 33135 Standard Referenced reference in code number Title section number A5.8 -92 Specifications for Filler Metals for Brazing 605.12.1, 605.14.1, 605.15.1, 705 4.1, 705 7.1, 705.8.1 90 1997 INTERNATIONAL PLUMBING CODE REFERENCED STANDARDS a The codes that are referenced in this code must be specifically identified upon adoption of this code. It is recommended that one of the three following sets of codes be incorporated. 1. BNBC -93 BOCA National Building Code BNMC -93 BOCA National Mechanical Code 2. ICBO -94 Uniform Building Code ICBO -94 Uniform Mechanical Code 3. SBCCI -94 Standard Building Code SBCCI -94 Standard Gas Code SBCCI -94 Standard Mechanical Code b When either the BOCA National Codes or the ICBO Uniform Codes are to be adopted, the entry for Gas Code should be deleted. Regulation of gas piping systems and equipment is covered by the adoption of either the BOCA National Mechanical Code or the ICBO Uniform Mechanical Code. American Water Works Association AW WA 6666 West Quincy Avenue Denver, CO 802235 Standard _ ^ Referenced reference in code number Title section number C110 -93 Standard for Ductile -Iron and Gray -Iron Fittings, 3 Inch through 48 Inches, Table 702.3, Table 1102.4 A257.3 -92 for Water and Other Liquids Table 605.6, Table 702.4, Table 1102.7 C151 -91 Standard for Ductile -Iron Pipe, Centrifugally Cast for Water or Other Liquids Table 605.4 C510 -92 Double Check Valve Backflow - Prevention Assembly Table 608.1, 608.13.7 C511 -92 Reduced- Pressure Principle Backflow - Prevention Assembly Table 608.1, 608.13.2, 608.16.2 C651 -92 Standard for Disinfecting Water Mains 610.1 C652 -92 Standard for Disinfection of Water- Storage Facilities 610.1 Council of American Building Officials Suite 201 R CAL O 5203 Leesburg Pike Falls Church, VA 22041 * Standard Referenced reference in code number Title section number A117.1 -92 Accessible and Usable Building and Facilities 401.1, 404.1, 404.2.2, 404.2.2.1, 404.3.1.1, 404.3.2.1, 404.3.2.3 1, 404.3.4 * All CABO publications are available from BOCA, ICBO and SBCCI. CODESThis model plumbing code is intended to be utilized in conjunction with the other model codes that are adopted by the jurisdiction. See Footnote a. Standard Referenced reference in code number Title section number [NAME OF 201.3, 305.4, 307.1, 307.2, 307.3, 308.2, 309 1.1 BUILDING CODE]a 309.1.2, 310.1, 310.3, 403.1, Table 403.1, 404.1, 404.3, 407.3, 417.6, 606.5.2 [NAME OF GAS CODE]a, b 502.1, 1201.2 [NAME OF MECHANICAL CODE]a 201.3, 310.1, 422.9, 502.1, 1201.2, 1302.1 a The codes that are referenced in this code must be specifically identified upon adoption of this code. It is recommended that one of the three following sets of codes be incorporated. 1. BNBC -93 BOCA National Building Code BNMC -93 BOCA National Mechanical Code 2. ICBO -94 Uniform Building Code ICBO -94 Uniform Mechanical Code 3. SBCCI -94 Standard Building Code SBCCI -94 Standard Gas Code SBCCI -94 Standard Mechanical Code b When either the BOCA National Codes or the ICBO Uniform Codes are to be adopted, the entry for Gas Code should be deleted. Regulation of gas piping systems and equipment is covered by the adoption of either the BOCA National Mechanical Code or the ICBO Uniform Mechanical Code. 1997 INTERNATIONAL PLUMBING CODE 91 Canadian Standards Association C C SA 178 Rexdale Blvd. Rexdale (Toronto), Ontario, Canada M9W 1R3 Standard Referenced reference in code number Title section number A257 1 -92 Circular Concrete Culvert, Storm Drain, Sewer Pipe and Fittings Table 702.3, Table 1102.4 A257.3 -92 Joints for Circular Concrete Sewer and Culvert Pipe, Manhole Sections, and Fittings Using Rubber Gaskets 705.6, 705.14 B45.1 -94 Ceramic Plumbing Fixtures 408.1, 416.1, 418.1, 419 1, 420.1 B45.2 -94 Enameled Cast -Iron Plumbing Fixtures 407.1, 415.1, 416.1, 418.1 B45.3 -94 Porcelain Enameled Steel Plumbing Fixtures 407 1, 416.1, 418.1 B45A -94 Stainless -Steel Plumbing Fixtures 415.1, 416.1, 418.1, 420.1 B45.5 -94 Plastic Plumbing Fixtures 407.1, 416.2, 417.1, 419 1, 420.1, 421.1 1997 INTERNATIONAL PLUMBING CODE 91 REFERENCED STANDARDS CSA - continued B64 7 -94 Vacuum Breakers, Laboratory Faucet Type (LFVB) Table 608.1, 608.13.6 B64.10 -94 Manual for the Selection, Installation, Maintenance and Field Testing of Backflow Prevention Devices 312.9 B79-79 Floor, Area and Shower Drains, and Cleanouts for Residential Construction 41.2.1 B137 1 -95 Polyethylene Pipe, Tubing and Fittings for Cold Water Pressure Services Table 605.4 B137.6 -83 CPVC Pipe, Tubing and Fittings for Hot and Cold Water Distribution Systems -with Revisions through May 1986 Table 605 4, Table 605.5 B181.1 -96 ABS Drain, Waste, and Vent Pipe and Pipe Fittings Table 702.1, Table 702.2, Table 702.4, 705.2.2, 715.3 B182.2 -95 PVC Sewer Pipe and Fittings (PSM Type) Table 702.3, Table 1102.4, Table 1102.5 CAN3- B137.8 -92 Polybutylene (PB) Piping for Pressure Applications -with Revisions through July 1992 Table 605 4, Table 605.5, 605.1.8.2, 605 18.3 CAN /CSA- A257.2 -92 Reinforced L Circular Concrete Culvert, Storm Drain, Sewer Pipe and Fittings Table 702.3, Table 1102.4 CAN /CSA -B64 1 1 -94 Vacuum Breakers, Atmospheric Type (AVB) 425.2, Table 608.1, 608.13.6 CAN /CSA- B64.2 -94 Vacuum Breakers, Hose Connection Type (HCVB) Table 608.1, 608.13.6 CAN /CSA- B64.2.2 -94 Vacuum Breakers, Hose Connection Type (HCVB) with Automatic Draining Feature Table 608.1, 608.13.6 CAN /CSA- B64.3 -94 Backflow Preventers, Dual Check Valve Type with Atmospheric Port (DCAP) Table 608.1, 608.13.3, 608.15.2 CAN /CSA -B64 4-94 Backflow Preventers, Reduced Pressure Principle Type (RP) Table 608.1, 608.13.2, 608.15.2 CAN /CSA- B125 -94 Plumbing Fittings 424.1, 424.2, 424.3, 424 4, 425.3.1, 425.4, Table 608.1 CAN /CSA - 13137.2 -93 PVC Injection- Moulded Gasketed Fittings for Pressure Applications Table 605.6, Table 1102.7 CAN /CSA- B137.3 -93 Rigid Poly (Vinyl Chloride) (PVC) Pipe for Pressure Applications Table 605.4, 605.20.2, 705 12.2 CAN /CSA- B137.5 -89 Cross - Linked Polyethylene (PBX) Tubing Systems for Pressure Applications -with Revisions through September 1992 Table 605 4, Table 605.5 CAN /CSA- B137.9 -91 Polyethylene /Aluminum/Polyethylene Composite Pressure Pipe Systems Table 605 4 CAN /CSA- B137.10 -91 Crosslinked Polyethylene /Aluminum/Polyethylene Composite Pressure Pipe Systems Table 605.4, Table 605.5 CAN /CSA- B181.2 -90 PVC Drain, Waste, and Vent Pipe and Pipe Fittings -with Revisions through December 1993 Table 702.1, Table 702.2, 705.12.2, 715.3 CAN /CSA- B181.3 -86 Polyolefin Laboratory Drainage Systems -with Revisions through October 1990 Table 702.1, Table 702.2 CAN /CSA- B182.1 -92 Plastic Drain and Sewer Pipe and Pipe Fittings 705.12.2 CAN /CSA- B182.4 -92 Profile PVC Sewer Pipe and Fittings Table 702.3, Table 1102.4, Table 1102.5 CAN /CSA- B602 -90 Mechanical Couplings for Drain, Waste, and Vent Pipe and Sewer Pipe 705.2.1, 705.5.3, 705.6, 705.12.1, 705.13, 705 14 CSA -B45 (Supplement 1"8 Hydromassage Bathtubs 421.1 * Standards are available from the Supt. of Documents, U.S. Government Printing Office, Washington, DC 20402 -9325 92 1997 INTERNATIONAL PLUMBING CODE Cast Iron Soil Pipe Institute Suite 419 CISPI 5959 Shallowford Road Chattanooga, TN 37421 Standard Referenced reference in code number Title section number 301 -95 Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste and Vent Piping Applications Table 702.1, Table 702.2, Table 702.3, Table 702.4, Table 1102.4, Table 1102.5 310 -95 Specification for Coupling for Use in Connection with Cast -Iron Soil Pipe and Fittings for Sanitary and Storm Drain Waste and Vent Piping Applications 705.5.3 Federal Specification* General Service Administration 7th & D Streets FS Specification Section, Room 6039 Washington, DC 20407 Standard Referenced reference in code number Title section number TT- P- 1536a -75 Federal Specification for Plumbing Fixture Setting Compound 4054 * Standards are available from the Supt. of Documents, U.S. Government Printing Office, Washington, DC 20402 -9325 92 1997 INTERNATIONAL PLUMBING CODE REFERENCED STANDARDS 1997 INTERNATIONAL PLUMBING CODE 93 National Fire Protection Association NFPA Park Quincy, MA 02269 Quincy, MA Referenced Standard in code reference section number number Title 50-96 Bulk Oxygen Systems at Consumer Sites 1303.1. 51 -92 Oxygen -Fuel Gas Systems for Welding. Cutting, and Allied Processes 1303.1 70-93 National Electrical Code 502.1, 11113.3 99C -96 Gas and Vacuum Systems 1302.1 National Sanitation Foundation 3475 Plymouth Road Box 40 NSFP Ann Arborr, , MI M148113 -0140 n Referenced Standard in code reference section number number Title 14-90 Plastic Piping Components and Related Materials 303.3 42-88 Drinking Water Treatment Units — Aesthetic Effects 611.1 53-96 Drinking Water Treatment Units — Health Effects 611.1 58-96 Reverse Osmosis Drinking Water Treatment Systems 611.2 61 -95 Drinking Water System Components — Health Effects 605 4, 605.5, 605.6 Plumbing and Drainage Institute West 77th Street, South Drive PD1106 1 Indianapolis, IN 46260 -3318 Standard Referenced in code reference section number number Title G101 -85 Testing and Rating Procedure for Grease Interceptors with Appendix of Sizing and Installation Data 1003.3 1997 INTERNATIONAL PLUMBING CODE 93 94 1997 INTERNATIONAL PLUMBING CODE APPENDIX A PLUMBING PERMIT FEE SCHEDULE Permit Issuance 1. For issuing each permit $ 2. For issuing each supplemental permit Unit Fee Schedule (in addition to Item 1 or 2 above) 1. For each plumbing fixture or trap or set of fixtures on one trap (including water, drainage piping and backflow protection therefor) 2. For each building sewer and each trailer park sewer 3. Rainwater systems —per drain (inside building) 4 For each cesspool (where permitted) 5 For each private sewage disposal system 6. For each water heater and /or vent 7 For each industrial waste pretreatment interceptor including its trap and vent, excepting kitchen -type grease interceptors functioning as fixture traps 8. For installation, alteration or repair of water - piping and /or water- treating equipment, each 9 For repair or alteration of drainage or vent piping, each fixture 10. For each lawn sprinkler system on any one meter including backflow protection devices therefor 11 For atmospheric -type vacuum breakers not included in Item 2: 1to5 over 5, each 12. For each backflow protective device other than atmospheric -type vacuum breakers: 2 inches (51 mm) and smaller Over 2 inches (51 mm) Other Inspections and Fees 1. Inspections outside of normal business hours per hour (minimum charge two hours) 2. Reinspection fee assessed under provisions of Section 107.3.3 each 3 Inspections for which no fee is specifically indicated per hour (minimum charge —one -half hour) 4 Additional plan review required by changes, additions or revisions to approved plans (minimum charge —one -half hour) per hour 95 1997 INTERNATIONAL PLUMBING CODE NT�RNAxlooAa"PLu4swc C,( 1997 � APPENDIX B RATES OF RAINFALL FOR VARIOUS CITIES Rainfall rates, in inches per hour, are based on a storm of one -hour duration and a 100 -year return period. The rainfall rates shown in the appendix are derived from Figure 1106.1. Alabama: Georgia: Maryland: New Hampshire: Birmingham 18 Atlanta 3.7 Baltimore 3.2 Berlin 2.5 Huntsville 3.6 Dalton 3.4 Hagerstown 2.8 Concord 2.5 Mobile 4.6 Macon 3.9 Oakland 2.7 Keene 2.4 Montgomery 4.2 Savannah 4.3 Salisbury 3 1 New Jersey: Thomasville 4.3 Atlantic City 2.9 Alaska: Massachusetts: Newark 3.1 Fairbanks 1.0 Hawaii: Boston 2.5 Trenton 3.1 Juneau 0.6 Hilo 6.2 Pittsfield 2.8 Honolulu 3.0 Worcester 2.7 New Mexico: Arizona: Wailuku 3.0 Albuquerque 2.0 Flagstaff 2.4 Michigan: Hobbs 3.0 Nogales 3.1 Idaho: Alpena 2.5 Raton 2.5 Phoenix 2.5 Boise 0.9 Detroit 2.7 Roswell 2.6 Yuma 1.6 Lewiston 1 1 Grand Rapids 2.6 Silver City 1.9 Pocatello 1.2 Lansing 2.8 New York: Arkansas: Fort Smith 3.6 Illinois: Marquette Sault Ste. Marie 2.4 2.2 Albany 2.5 Little Rock 3 7 Cairo 3.3 Binghamton 2.3 Texarkana 3.8 Chicago 3.0 Minnesota: Buffalo 2.3 Peoria 3.3 Duluth 2.8 Kingston 2.7 California: Rockford 3.2 Grand Marais 2.3 New York 3.0 Barstow 1.4 Springfield 3.3 Minneapolis 3.1 Rochester 2.2 Crescent City 1.5 Moorhead 3.2 North Carolina: Fresno 11 Indiana: Worthington 3.5 Asheville 41 Los Angeles 2.1 Evansville 3.2 Charlotte 3.7 Needles 1.6 Fort Wayne 2.9 Mississippi: Greensboro 34 Placerville 1.5 Indianapolis 3.1 Biloxi 47 Wilmington 4.2 San Fernando 2.3 Columbus 3.9 San Francisco 1.5 Iowa: Corinth 3.6 North Dakota: Yreka 14 Davenport 3.3 Natchez 44 Bismarck 2.8 Des Moines 3.4 Vicksburg 41 Devils Lake 2.9 Colorado: Dubuque 3.3 Fargo 31 Craig 1.5 Sioux City 3.6 Missouri: Williston 2.6 Denver Durango 2.4 1.8 Kansas: Columbia 3.2 Ohio: Grand Junction 17 Atwood 3.3 Kansas City Springfield 3.6 3.4 Cincinnati Cleveland 2.9 2.6 Lamar 3.0 Dodge City Topeka 3.3 37 St. Louis 3.2 Columbus 2.8 Pueblo 2.5 Wichita 3.7 Toledo 2.8 Connecticut: Montana: Ekalaka 2.5 Oklahoma: Hartford 2.7 Kentucky: Ashland 3.0 Havre 1.6 Altus 3 7 New Haven 2.8 2.6 Lexington 3 1 Helena 1.5 Boise City 33 Putnam Louisville 3.2 Kalispell 1.2 Durant 3.8 Delaware: Middlesboro 3.2 Missoula 1.3 Oklahoma City 3.8 Georgetown 3.0 Paducah 3.3 Oregon: Wilmington 31 Nebraska: Baker 0.9 Louisiana: North Platte 3.3 Coos Bay 1.5 District of Columbia: Alexandria 4.2 Omaha 3.8 Eugene 1.3 Washington 3.2 Lake Providence 4.0 Scottsbluff 31 Portland 1.2 New Orleans 4.8 Valentine 3.2 Florida: Shreveport 3.9 Pennsylvania: Jacksonville 4.3 Nevada: Erie 2.6 Key West 4.3 Maine: Elko 1.0 Harrisburg 2.8 Miami 4 7 Bangor 2.2 Ely 1.1 Philadelphia 31 Pensacola 4.6 Houlton 2.1 Las Vegas 1.4 Pittsburgh 2.6 Tampa 4.5 Portland 2.4 Reno 11 Scranton 2.7 1997 INTERNATIONAL PLUMBING CODE 97 APPENDIX B (Continued) Rhode Island: Utah: Wisconsin: Block Island 2.75 Brigham City 1.2 Ashland 2.5 Providence 2.6 Roosevelt 1.3 Eau Claire 2.9 Salt Lake City 1.3 Green Bay 2.6 South Catalina: St. George 17 La Crosse 3.1 Charleston 4.3 Madison 3.0 Columbia 4.0 Milwaukee 3.0 Greenville 4.1 Vermont: Barre 2.3 Wyoming: South Dakota: Bratteboro 2.7 Cheyenne 2.2 Buffalo 2.8 Burlington 2.1 Fort Bridget 1.3 Huron 3.3 Rutland 2.5 Lander 1.5 Pierre 3.1 New Castle 2.5 Rapid City 2.9 Sheridan 1.7 Yankton 3.6 Virginia: Yellowstone Park 14 Tennessee: Bristol 2.7 Chattanooga 3.5 Charlottesville 2.8 Knoxville 3.2 Lynchburg 3.2 Memphis 3.7 Norfolk 3.4 Nashville 3.3 Richmond 3.3 Texas: Abilene 3.6 Washington: Amarillo 3.5 Omak 1.1 Brownsville 4.5 Port Angeles 1.1 Dallas 4.0 Seattle 1.4 Del Rio 4.0 Spokane 1.0 El Paso 2.3 Yakima 1.1 Houston 4.6 Lubbock 3.3 Odessa 3.2 West Virginia: Pecos 3.0 Charleston 2.8 San Antonio 4.2 Morgantown 2.7 For SI: 1 inch =25.4 mm. Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington, D.C. 98 1997 INTERNATIONAL PLUMBING CODE APPENDIX C GRAY WATER RECYCLING SYSTEMS Note. Section 301.3 of this code requires all plumbing fixtures that receive water or waste to discharge to the sanitary drainage system of the structure. In order to allow for the utilization of a gray water recycling system, Section 301.3 should be revised to read. as follows. 301.3 Connections to drainage system. All plumbing fixtures, drains, appurtenances and appliances used to receive or discharge liquid wastes or sewage shall be connected properly to the drainage system of the building or premises, in accordance with the requirements of this code. This section shall not be construed to prevent indirect waste systems provided for in Chapter 8. Exception: Bathtubs, showers, lavatories, clothes washers and laundry sinks shall not be required to discharge to the sanitary , drainage system where such fixtures discharge to an approved gray water recycling system. C101 GRAY WATER RECYCLING SYSTEMS CI01.1 General. Gray water recycling systems shall only receive the waste discharge of bathtubs, showers, lavatories, clothes washers and laundry sinks. Recycled gray water shall only be utilized for flushing water closets and urinals that are located in the same building as the gray water recycling system. Such systems shall comply with Sections C101.2 through C101.12. Exception: Gray water systems shall be permitted to be used for irrigation when specific approval is given by the author- ity having jurisdiction. Such systems shall be designed as required by Section 105 C101.2 Definition. The following term shall have the meaning shown herein. GRAY WATER. Waste water discharged from lavatories, bathtubs, showers, clothes washers and laundry sinks. C101.3 Installation. All drain, waste and vent piping associated with gray water recycling systems shall be installed in full compliance with this code. C101.4 Reservoir. Gray water shall be collected in an approved reservoir constructed of durable, nonabsorbent and corrosion - resistant materials. The reservoir shall be a closed and gas -tight vessel. Access openings shall be provided to allow inspection and cleaning of the reservoir interior. The holding capacity of the reservoir shall be a minimum of twice the volume of water required to meet the daily flushing require- ments of the fixtures supplied with gray water, but not less than 50 gallons (189 L). The reservoir shall be sized to limit the retention time of gray water to 72 hours maximum. C101.5 Filtration. Gray water entering the reservoir shall pass through an approved filter such as a media, sand or diatoma- ceous earth filter. C101.6 Disinfection. Gray water shall be disinfected by an approved method that employs one or more disinfectants such as chlorine, iodine or ozone. C101.7 Makeup water. Potable water shall be supplied as a source of makeup water for the gray water system. The potable water supply shall be protected against backflow in accordance with Section 608. There shall be a full -open valve on the makeup water supply line to the reservoir. C101.8 Overflow The collection reservoir shall be equipped with an overflow pipe of the same diameter as the influent pipe for the gray water. The overflow shall be directly connected to the sanitary drainage system. C101.9 Drain. A drain shall be located at the lowest point of the collection reservoir and shall be directly connected to the sanitary drainage system. The drain shall be the same diameter as the overflow pipe required by Section C101.8 and shall be provided with a full -open valve. C101.10 Vent required. The reservoir shall be provided with a vent sized in accordance with Chapter 9 based on the size of the reservoir influent pipe. C101.11 Coloring. The gray water shall be dyed blue or green with a food grade vegetable dye before such water is supplied to the fixtures. C101.12 Identification. All gray water distribution piping and reservoirs shall be identified as containing nonpotable water. Piping identification shall be in accordance with Section 608.8. 1997 INTERNATIONAL PLUMBING CODE 99 100 1997 INTERNATIONAL PLUMBING CODE APPENDIX D DEGREE DAY AND DESIGN TEMPERATURES° FOR CITIES IN THE UNITED STATES (Continued) 1997 INTERNATIONAL PLUMBING CODE 101 HEATING DESIGN TEMPERATURES DEGREES Winter Summer DEGREE DAYS NORTH 971/2% Dry bulb 2112% Wet bulb 21/2% STATE STATIONb (yearly total) LATITUDE AL Birmingham 2,551 21 94 77 33 03' Huntsville 3,070 16 93 77 34 04' Mobile 1,560 29 93 79 30 °4' Montgomery 2,291 25 95 79 32 02' AK Anchorage 10,864 -18 68 59 61 °1' Fairbanks 14,279 -47 78 62 64 05' Juneau 9,075 1 70 59 58 02' Nome 14,171 -27 62 56 64 03' AZ Flagstaff 7,152 4 82 60 35 01' Phoenix 1,765 34 107 75 33 03' Tuscon 1,800 32 102 71 33 °1' Yuma 974 39 109 78 32 04' AR Fort Smith 3,292 17 98 79 35 02' Little Rock 3,219 20 96 79 34 04' Texarkana 2,533 23 96 79 33 03' CA Fresno 2,611 30 100 71 36 05' Long Beach 1,803 43 80 69 33 05' Los Angeles 2,061 43 80 69 34 00' Los Angelesd 1,349 40 89 71 34 00' Oakland 2,870 36 80 64 37 °4' Sacramento 2,502 32 98 71 38 °3' San Diego 1,458 44 80 70 32 04' San Francisco 3,015 38 77 64 37 04' San Franciscod 3,001 40 71 62 37 °5' CO Alamosa 8,529 -16 82 61 37 03' Colorado Springs 6,423 2 88 62 38 05' Denver 6,283 1 91 63 39 05' Grand Junction 5,641 7 94 63 39 01' Pueblo 5,462 0 95 66 38 02' CT Bridgeport 5,617 9 84 74 41 01' Hartford 6,235 7 88 75 41 05' New Haven 5,897 7 84 75 41 02' DE Wilmington 4,930 14 89 76 39 04' DC Washington 4,224 17 91 77 38 05' FL Daytona 879 35 90 79 2901' Fort Myers 442 44 92 79 26 04' Jacksonville 1,239 32 94 79 30 03' Key West 108 57 90 79 24 03' Miami 214 47 90 79 25 05' Orlando 766 38 93 78 28 03' Pensacola 1,463 29 93 79 30 03' Tallahassee 1,485 30 92 78 30 02' Tampa 683 40 91 79 28 00' West Palm Beach 253 45 91 79 26 04' GA Athens 2,929 22 92 77 34 °0' Atlanta 2,961 22 92 76 33 04' Augusta 2,397 23 95 79 33 02' Columbus 2,383 24 93 78 32 03' Macon 2,136 25 93 78 32 04' Rome 3,326 22 93 78 34 02' Savannah 1,819 27 93 79 32 01' HI Hilo C 62 83 74 19 °4' Honolulu C 63 86 75 21 °2' (Continued) 1997 INTERNATIONAL PLUMBING CODE 101 APPENDIX D DEGREE DAY AND DESIGN TEMPERATURES8 FOR CITIES IN THE UNITED STATES- 4Continued) (Continued) 102 1997 INTERNATIONAL PLUMBING CODE HEATING DESIGN TEMPERATURES DEGREES Winter Summer DEGREE DAYS NORTH 97112% Dry bulb 2112% Wet bulb 2112% STATE STATIONb (yearly total) LATITUDEc ID Boise 5,809 10 94 66 43 03' Lewiston 5,542 6 93 66 46 02' Pocatello 7,033 -1 91 63 43 00' IL Chicago (Midway) 6,155 0 91 75 41 05' Chicago (O'Hare) 6,639 -4 89 76 4200' Chicagod 5,882 2 91 77 41 05' Moline 6,408 -4 91 77 4103' Peoria 6,025 -4 89 76 40 04' Rockford 6,830 -4 89 76 4201' Springfield 5,429 2 92 77 39 05' IN Evansville 4,435 9 93 78 38 00' Fort Wayne 6,205 1 89 75 41 00' Indianapolis 5,699 2 90 76 39 04' South Bend 6,439 1 89 75 4104' IA Burlington 6,114 -3 91 77 40 05' Des Moines 6,588 -5 91 77 41 03' Dubuque 7,376 -7 88 75 42 02' Sioux City 6,951 -7 92 77 42 02' Waterloo 7,320 -10 89 77 42 03' KS Dodge City 4,986 5 97 73 37 °5' Goodland 6,141 0 96 70 39 02' Topeka 5,182 4 96 78 39 00' Wichita 4,620 7 98 76 37 04' KY Covington 5,265 6 90 75 39 00' Lexington 4,683 8 91 76 38 00' Louisville 4,660 10 93 77 38 01' LA Alexandria 1,921 27 94 79 31 02' Baton Rouge 1,560 29 93 80 30 03' Lake Charles 1,459 31 93 79 30 01' New Orleans 1,385 33 92 80 30 00' Shreveport 2,184 25 96 79 32 03' ME Caribou 9,767 -13 81 69 46 05' Portland 7,511 -1 84 72 43 04' MD Baltimore 4,654 13 91 77 39 01' Baltimored 4,111 17 89 78 39 02' Frederick 5,087 12 91 77 39 °2' MA Boston 5,634 9 88 74 42 02' Pittsfield 7,578 -3 84 72 42 03' Worcester 6,969 4 84 72 42 02' MI Alpena 8,506 -6 85 72 45 00' Detroit (City) 6,232 6 88 74 42 02' Escanabad 8,481 -7 83 71 45 04' Flint 7,377 1 87 74 43 00' Grand Rapids 6,894 5 88 74 42 05' Lansing 6,909 1 87 74 42 05' Marquetted 8,393 -8 81 70 46 03' Muskegon 6,696 6 84 73 43 01' Sault Ste. Mane 9,048 -8 81 70 46 03' MN Duluth 10,000 -16 82 70 46 05' Minneapolis 8,382 -12 89 75 44 05' Rochester 8,295 -12 87 75 44 00' MS Jackson 2,239 25 95 78 32 02' Meridian 2,289 23 95 79 32 02' Vicksburgd 2,041 26 95 80 32 02' (Continued) 102 1997 INTERNATIONAL PLUMBING CODE APPENDIX D DEGREE DAY AND DESIGN TEMPERATURESe FOR CRIES IN THE UNITED STATE"Continued) (Continued) 1997 INTERNATIONAL PLUMBING CODE 103 HEATING DESIGN TEMPERATURES DEGREES Winter Summer DEGREE DAYS NORTH 971/2% Dry bulb 2112% Wet bulb 21/2% STATE STATIONb (yearly total) LATITUDE° MO Columbia 5,046 4 94 77 39 00' Kansas City 4,711 6 96 77 39 01' St. Joseph 5,484 2 93 79 39 05' St. Louis 4,900 6 94 77 38 05' St. Louisd 4,484 8 94 77 38 04' Springfield 4,900 9 93 77 37 01' MT Billings 7,049 -10 91 66 45 05' Great Falls 7,750 -15 88 62 47 03' Helena 8,129 -16 88 62 46 04' Missoula 8,125 -6 88 63 46 05' NE Grand Island 6,530 -3 94 74 4100' Lincolnd 5,864 -2 95 77 40 05' Norfolk 6,979 -4 93 77 42 00' North Platte 6,684 -4 94 72 41 01' Omaha 6,612 -3 91 77 41 02' Scottsbluff 6,673 -3 92 68 4105' NV Elko 7,433 -2 92 62 40 05' Ely 7,733 -4 87 59 39 01' Las Vegas 2,709 28 106 70 36 01' Reno 6,332 10 92 62 39 03' Winnemucca 6,761 3 94 62 40 05' NH Concord 7,383 -3 87 73 43 01' NJ Atlantic City 4,812 13 89 77 39 03' Newark 4,589 14 91 76 40 04' Trentond 4,980 14 88 76 40 01' NM Albuquerque 4,348 16 94 65 35 00' Raton 6,228 1 89 64 36 05' Roswell 3,793 18 98 70 33 02' Silver City 3,705 10 94 64 32 04' NY Albany 6,875 -1 88 74 42 05' Albanyd 6,201 1 88 74 42 05' Binghamton 7,286 1 83 72 42 01' Buffalo 7,062 6 85 73 43 00' NY (Cent. Park)d 4,871 15 89 75 40 05' NY (Kennedy) 5,219 15 87 75 4004' NY(LaGuardia) 4,811 15 89 75 40 05' Rochester 6,748 5 88 73 43 01' Schenectadyd 6,650 1 87 74 42 05' Syracuse 6,756 2 87 73 43 01' NC Charlotte 3,181 22 93 76 35 01' Greensboro 3,805 18 91 76 36 01' Raleigh 3,393 20 92 77 35 05' Winston -Salem 3,595 20 91 75 36 01' ND Bismarck 8,851 -19 91 71 46 05' Devils Laked 9,901 -21 88 71 48 01' Fargo 9,226 -18 89 74 46 05' Williston 9,243 -21 88 70 4801' OH Akron -Canton 6,037 6 86 73 4100' Cincinnatid 4,410 6 90 75 39 01' Cleveland 6,351 5 88 74 41 02' Columbus 5,660 5 90 75 40 00' Dayton 5,622 4 89 75 39 05' Mansfield 6,403 5 87 74 40 05' Sanduskyd 5,796 6 91 74 41 03' Toledo 6,494 1 88 75 41 04' Youngstown 6,417 4 86 73 4102' (Continued) 1997 INTERNATIONAL PLUMBING CODE 103 APPENDIX D DEGREE DAY AND DESIGN TEMPERATURESa FOR CITIES IN THE UNITED STATE"Continued) (Continued) 104 1997 INTERNATIONAL PLUMBING CODE DESIGN TEMPERATURES HEATING DEGREE DAYS DEGREES NORTH Winter Summer 971/2% Dry bulb 21/2% Wet bulb 21/2% STATE STATIONb (yearly total) LATITUDE° OK Oklahoma City 3,725 13 97 77 35 02' Tulsa 3,860 13 98 78 36 01' OR Eugene 4,726 22 89 67 44 01' Medford 5,008 23 94 68 42 02' Portland 4,635 23 85 67 45 04' Portlandd 4,109 24 86 67 45 03' Salem 4,754 23 88 68 45 00' PA Allentown 5,810 9 88 75 40 04' Erie 6,451 9 85 74 42 01' Harrisburg 5,251 11 91 76 4001' Philadelphia 5,144 14 90 76 39 05' Pittsburgh 5,987 5 86 73 40 03' Pittsburghd 5,053 7 88 73 40 03' Readingd 4,945 13 89 75 40 02' Scranton 6,254 5 87 73 41 02' Williamsport 5,934 7 89 74 41 01' RI Providence 5,954 9 86 74 41 04' SC Charleston 2,033 27 91 80 32 05' Charlestond 1,794 28 92 80 32 05' Columbia 2,484 24 95 78 34 00' SD Huron 8,223 -14 93 75 44 03' Rapid City 7,345 -7 92 69 44 00' Sioux Falls 7,839 -11 91 75 43 04' TN Bristol 4,143 14 89 75 36 03' Chattanooga 3,254 18 93 77 35 00' Knoxville 3,494 19 92 76 35 05' Memphis 3,232 18 95 79 35 00' Nashville 3,578 14 94 77 3601' TX Abilene 2,624 20 99 74 32 03' Austin 1,711 28 98 77 30 02' Dallas 2,363 22 100 78 32 05' E1 Paso 2,700 24 98 68 31 05' Houston 1,396 32 94 79 29 04' Midland 2,591 21 98 72 32 00' San Angelo 2,255 22 99 74 31 02' San Antonio 1,546 30 97 76 29 03' Waco 2,030 26 99 78 3104' Wichita Falls 2,832 18 101 76 34 00' LTT Salt Lake City 6,052 8 95 65 40 05' VT Burlington 8,269 -7 85 72 44 03' VA Lynchburg 4,166 16 90 76 37 02' Norfolk 3,421 22 91 78 36 05' Richmond 3,865 17 92 78 37 03' Roanoke 4,150 16 91 74 37 02' WA Olympia 5,236 22 83 66 47 00' Seattle- Tacoma 5,145 26 80 64 47 03' Seattled 4,424 27 82 67 47 04' Spokane 6,655 2 90 64 47 04' WV Charleston 4,476 11 90 75 38 02' Elkins 5,675 6 84 72 38 05' Huntington 4,446 10 91 77 38 02' Parkersburgd 4,754 11 90 76 39 02' WI Green Bay 8,029 -9 85 74 44 03' La Crosse 7,589 -9 88 75 43 05' Madison 7,863 -7 88 75 43 01' Milwaukee 1 7,635 1 -4 1 87 1 74 1 43 00' (Continued) 104 1997 INTERNATIONAL PLUMBING CODE APPENDIX D DEGREE DAY AND DESIGN TEMPERATURESa FOR CITIES IN THE UNITED STATE"Continued) e All data was extracted from the 1985 ASHRAE Handbook, Fundamentals Volume. b Design data developed from airport temperature observations unless noted. c Latitude is given to the nearest 10 minutes. For example, the latitude for Miami, Florida, is given as 25 °5', or 25 degrees 50 minutes. d Design data developed from office locations within an urban area, not from airport temperature observations. 1997 INTERNATIONAL PLUMBING CODE 105 DESIGN TEMPERATURES HEATING DEGREE DAYS DEGREES NORTH Winter Summer 971/29/6 Dry bulb 21/2% Wet bulb 21/21% STATE STATIONb (yearly total) LATITUDE° WY Casper 7,410 —5 90 61 42 05' Cheyenne 7,381 —1 86 62 41 01' Lander 7,870 —11 88 63 42 05' Sheridan 7,680 1 —8 1 91 65 1 44 05' e All data was extracted from the 1985 ASHRAE Handbook, Fundamentals Volume. b Design data developed from airport temperature observations unless noted. c Latitude is given to the nearest 10 minutes. For example, the latitude for Miami, Florida, is given as 25 °5', or 25 degrees 50 minutes. d Design data developed from office locations within an urban area, not from airport temperature observations. 1997 INTERNATIONAL PLUMBING CODE 105 106 1997 INTERNATIONAL PLUMBING CODE APPENDIX E SIZING OF WATER PIPING SYSTEM E101 GENERAL E101.1 Scope. E101.1.1 This appendix outlines a procedure for sizing a water piping system. This design procedure is based on the minimum static pressure available from the supply source, the head charges in the system due to friction and elevation, and the rates of flow necessary for operation of various fix- tures. E101.1.2 Because of the variable conditions encountered in hydraulic design, it is impractical to specify definite and detailed rules for sizing of the water piping system. Accord- ingly, other sizing or design methods conforming to good engineering practice standards are acceptable alternates to that presented herein. E102 INFORMATION REQUIRED E102.1 Preliminary Obtain the necessary information regard- ing the minimum daily static service pressure in the area where the building is to be located. If the building supply is to be metered, obtain information regarding friction loss relative to the rate of flow for meters in the range of sizes likely to be used. Friction loss data can be obtained from most manufacturers of water meters. E102.2 Demand Load. E102.2.1 Estimate the supply demand of the building main and the principal branches and risers of the system by total- ing the corresponding demand from the applicable part of Table E102. E102.2.2 Estimate continuous supply demands in gallons per minute for lawn sprinklers, air conditioners, etc., and add the sum to the total demand for fixtures. The result is the esti- mated supply demand for the building supply E103 SELECTION OF PIPE SIZE E103.1 General. Decide what is the desirable minimum resid- ual pressure that should be maintained at the highest fixture in the supply system. If the highest group of fixtures contains flush valves, the pressure for the group should not be less than 15 psi (103 4 kPa) flowing. For flush tank supplies, the avail- able pressure may not be less than 8 psi (55.2 kPa) flowing, except blowout action fixtures may not be less than 25 psi (172.4 kPa) flowing. E103.2 Pipe Sizing. E103.2.1 Pipe sizes may be selected according to the follow- ing procedure, except that the sizes selected shall not be less than the minimum required by this code. E103.2.2 This water pipe sizing procedure is based on a sys- tem of pressure requirements and losses, the sum of which must not exceed the minimum pressure available at the sup- ply source. These pressures are as follows. 1 Pressure required at fixture to produce required flow See Sections 604.3 and 604.5 2. Static pressure loss or gain (due to head) is computed at 0.433 psi per foot (9.8 kPa/m) of elevation change. Example: Assume that the highest fixture supply outlet is 20 feet (6.1 m) above or below the supply source. This produces a static pressure differential of 20 feet x 0.433 psi /foot (6.1 m x 9.8 kPa/m) and an 8.66 psi (59.8 kPa) loss. 3 Loss through water meter. The friction or pressure loss can be obtained from meter manufacturers. 4 Loss through taps in water main. See Table E103A. 5 Losses through special devices such as filters, soften- ers, backflow preventers and pressure regulators. These values must be obtained from the manufacturers. 6. Loss through valves and fittings, see Tables E103B and E103C. Losses for these items are calculated by con- verting to equivalent length of piping and adding to the total pipe length. 7 Loss due to pipe friction can be calculated when the pipe size, the pipe length and the flow through the pipe are known. With these three items, the friction loss can be determined using Figures E103A.1 through E103D When using charts, use pipe inside diameter. For piping flow charts not included, use manufacturers' tables and velocity recommendations. E103.3 Example. Note: For the purposes of this example, the following metric conversions are applicable. 1 cfm = 0.4719 L/s 1 square foot = 0.0929 m2 1 degree = 0.0175 rad 1 psi = 6.895 kPa 1 inch = 25 4 mm 1 foot = 304.8 mm 1 gpm = 3 785 L/m Problem. What size copper water pipe, service and distribu- tion will be required to serve a two -story factory building hav- ing on each floor, back -to -back, two toilet rooms each equipped with hot and cold water? The highest fixture is 21 feet above the street main, which is tapped with a 2 -inch corporation cock at which point the minimum pressure is 55 psi. In the building basement, a 2 -inch meter and 3 -inch reduced pressure principle 1997 INTERNATIONAL PLUMBING CODE 107 APPENDIX E backflow preventer with a maximum pressure drop of 9 psi are to be installed. The system is shown by the Example Diagram. To be determined are the pipe sizes for the service main and the cold and hot water distribution pipes. Solution: A Tabular Arrangement such as shown in Table EI01A should first be constructed. The steps to be followed in solving the problem are indicated by the Tabular Arrangement itself as they are in sequence, columns 1 through 10 and lines a through 1. Step 1 Column 1: Divide the system into sections breaking at major changes in elevation or where branches lead to fix- ture groups. After point B (see Figure E103), separate consideration will be given to the hot and cold water pip- ing. Enter the sections to be considered in the service and cold water piping in Column 1 of the Tabular Arrange- ment. Column 3: According to the method given in E102.2, determine the gpm of flow to be expected in each section of the system. These flows range from 28.6 to 108 gpm. Step 2 Line a: Enter the minimum pressure available at the main source of supply in Column 2. This is 55 psi. Line b: Determine from Section 604.3 the highest pres- sure required for the fixtures on system, which is 15 psi, to operate a flushometer valve. Line c: Determine the pressure loss for the meter size given or assumed. The total water flow from the main through the service as determined in Step 1 will serve to aid in the meter selected. Line d: Select from Table E103A and enter the pressure loss for the tap size given or assumed. Line e: Determine the difference in elevation between the main or source of supply and the highest fixture on the sys- tem and multiply this figure, expressed in feet, by 0.43 psi. Enter the resulting psi product on Line e. Lines f, g and h: The pressure losses through filters, back - flow preventers or other special fixtures must be obtained from the manufacturer or estimated and entered on these lines. Step 3 Line is The sum of the pressure requirements and losses that affect the overall system (Lines b through h) is entered on this line. Step 4 Line j: Subtract Line i from Line a. This gives the pressure that remains available from overcoming friction losses in the system. This figure is a guide to the pipe size that is chosen for each section, as the total friction losses through the longest run of pipe. Exception: When the main is above the highest fixture, the resulting psi must be considered a pressure gain (static head gain) and omitted from the sums of Lines b through h and added to Line j Step 5 Column 4: Enter the length of each section from the main to the end of the longest run (at Point E). Step 6 Column 5: Select a trial pipe size. A rule of thumb is that size will become progressively smaller as the system extends farther from the main source of supply Trial pipe size may be arrived at by the following formula: Psi =j x 100/Total pipe length Example: psi = 9.36 x 100/254 = 3.69 From main to most remote outlet —check applicable graph for size for this psi and gpm. Step 7 Column 6: Select from Table E103B or Table E103C the equivalent lengths for the trial pipe size of fittings and valves on the section. Enter the sum for each section in Column 6. (The number of fittings to be used in the instal- lation of this piping must be an estimate.) Step 8 Column 7: Add the figures from Column 4 and Column 6, and enter in Column 7 Express the sum in 100s of feet. Step 9 Column 8: Select from the applicable figure (E103A.1 through E103D) the friction loss per 100 feet of pipe for the gpm flow in a section (Column 3) and trial pipe size (Column 5). Step 10 Column 9- Multiply the figures in Columns 7 and 8 for each section and enter in Column 9 Step 11 Line k: Enter the sum of the values in Column 9 Step 12 Line l: Subtract Line k from Line j and enter in Column 10. The result should always be a positive or plus figure. If it is not, it is necessary to repeat the operation using Columns 5, 6, 8 and 9 until a balance or near balance is obtained. If the differ- ence between Lines j and k is positive and large, it is an indica- tion that the pipe sizes are too large and may, therefore, be reduced, thus saving materials. In such a case, the operations using Columns 5, 6, 8 and 9 should again be repeated. Answer- The final figures entered in Column 5 become the design pipe size for the respective sections. Repeating this operation a second time using the same sketch but considering the demand for hot water, it is possible to size the hot water dis- tribution piping. This has been worked up as a part of the over- all problem in the Tabular Arrangement used for sizing the ser- vice and cold water distribution piping. It should be noted that consideration must be given the pressure losses from the street main to the water heater (Section AB) in determining the hot water pipe sizes. 108 1997 INTERNATIONAL PLUMBING CODE HOT WATER COLD WATER M = METER BBFP = BACIFLOW PREVENTER 1 = 90 DEGREE ELBOW I--i _ "r" H = VALVE A 294fu, 108 gpm 0 MAIN 54' For SI: 1 foot = 304.8 mm, 1 gpm = 3.785 Um. FLOOR 2 132fu, 77 gpm C FLOOR 1 264fu, — ► co 104.5 gpm B M BFP in 150' E f- 132fu, 77 gpm I �12fu, 28.6 gpm E' I� 1 � 132fu, 77 gpm F 12fu, 28.6 gpm F, 24fu, 38 gpm WATER HEATER FIGURE E103 EXAMPLE —SIZING APPENDIX E 1997 INTERNATIONAL PLUMBING CODE 109 APPENDIX E TABLE Ell 01A RECOMMENDED TABULAR ARRANGEMENT FOR USE IN SOLVING PIPE SIZING PROBLEMS COLUMN 1 2 9 1 1 6 6 7 8 8 10 Friction Friction Total loss per less In Excess Lbs• Equivalent equivalent 100 bet equivalent pressure per Gal. per Length Trial length of length of trial length over square min. of pipe fittings Col. 4 and size Col. 8 x friction Line Description Inch through section size and valves Col. 6 pipe Col. 7 losses (psi) section (bet) (inches) (feet) (100 feet) (psi) (psi) (psi) a Service Minimum pressure available at main 55.00 b and cold Highest pressure required at a fixture water (Section 604.3) 15.00 C distribution Meter loss 2" meter 11.00 d pipings Tap in main loss 2" tap (Table E103A) 1.61 e Static head loss 21 x 0.43 psi 9.03 f Special fixture loss backflow preventer 9,00 g Special fixture loss - Filter 0.00 h Special fixture loss -Other 0.00 i Total overall losses and requirements (sum of Lines b through h) 45.64 j Pressure available to overcome pipe friction (Line a minus Lines b to h) 9.36 FU Designation AB 294 108.0 54 21/2 12 0.66 3.3 2.38 Pipe section (from diagram) BC 264 108.0 8 21/2 2.5 0.105 3.2 0.34 Cold water distribution CD 132 77.0 13 21/2 8 0.21 1.9 0.40 piping CF 132 77.0 150 21/2 12 1.62 1.9 3.08 DE 132 77.0 150 21/2 14.5 1.645 1.9 3.12 k Total pipe friction losses (cold) 6.24 1 Difference (Line j minus Line k) 9.36 6.24 312 Pipe section (from diagram) A' B' 294 108.0 54 21/2 9.6 0.64 3.3 2.1 Hot water distribution B' C' 24 38.0 8 2 9.0 0.17 14 0.24 piping C' D' 12 28.6 13 11/2 5 0.18 3.2 0.58 C' F' b 12 28.6 150 11/2 14 1.64 3.2 5.25 D' E' b 12 28.6 150 1 11/2 1 7 1 1.57 1 3.2 1 5.02 k Total pipe friction losses (hot) 7.94 t 1 J Difference (Line j minus Line k) 9.36 1 7.94 1421 - �• �_• = ps. - -." nr a, , gV111 = J. 10j I-Im, 1 1001 = 364.8 mm, 1 mch = 23.4 mm. a To be considered as pressure gain for fixtures below main (to consider separately, omit from "i" and add to b To consider separately, in k use C -F only if greater loss than above. 110 1997 INTERNATIONAL PLUMBING CODE APPENDIX E TABLE E1018 LOAD VALUES ASSIGNED TO FIXTURES8 FIXTURE OCCUPANCY TYPE OF SUPPLY CONTROL LOAD VALUES, IN WATER SUPPLY FIXTURE UNITS (watu) Cold Hot ToteI Bathroom group Private Flush tank 2.7 1.5 3.6 Bathroom group Private Flush valve 6.0 3.0 8.0 Bathtub Private Faucet 1.0 1.0 14 Bathtub Public Faucet 3.0 3.0 4.0 Bidet Private Faucet 1.5 1.5 2.0 Combination fixture Private Faucet 2.25 2.25 3.0 Dishwashing machine Private Automatic 1.4 14 Drinking fountain Offices, etc. 3/8" valve 0.25 0.25 Kitchen sink Private Faucet 1.0 1.0 1.4 Kitchen sink Hotel, restaurant Faucet 3.0 3.0 4.0 Laundry trays (1 to 3) Private Faucet 1.0 1.0 1.4 lavatory Private Faucet 0.5 0.5 0.7 Lavatory Public Faucet 1.5 1.5 2.0 Service sink Offices, etc. Faucet 2.25 2.25 3.0 Shower head Public Mixing valve 3.0 3.0 4.0 Shower head Private Mixing valve 1.0 1.0 1.4 Urinal Public 1" flush valve 10.0 10.0 Urinal Public 3/4" flush valve 5.0 5.0 Urinal Public Flush tank 3.0 3.0 Washing machine (8 lbs.) Private Automatic 1.0 1.0 1.4 Washing machine (8 lbs.) Public Automatic 2.25 2.25 3.0 Washing machine (15 lbs.) Public Automatic 3.0 3.0 4.0 Water closet Private Flush valve 6.0 6.0 Water closet Private Flush tank 2.2 2.2 Water closet Public Flush valve 10.0 10.0 Water closet Public Flush tank 5.0 5.0 Water closet Public or private Flushometer tank 2.0 2.0 rul oa: 1 MUR = [.J.4 mm. e For fixtures not listed, loads should be assumed by comparing the fixture to one listed using water in similar quantities and at similar rates. The assigned loads for fixtures with both hot and cold water supplies are given for separate hot and cold water loads and for total load, the separate hot and cold water loads being three - fourths of the total load for the fixture in each case. 1997 INTERNATIONAL PLUMBING CODE 111 APPENDIX E TABLE E102 TABLE FOR ESTIMATING DEMAND SUPPLY SYSTEMS PREDOMINANTLY FOR FLUSH TANKS SUPPLY SYSTEMS PREDOMINANTLY FOR FLUSH VALVES Load Demand Load Demand ` (Water supply fixture units) (Gallons per minute) (Cubic feet per minute) (ureter supply fixture units) (Gallons per minute) (Cubic feet per minute) 1 3.0 0.04104 2 5.0 0.0684 3 6.5 0.86892 4 8.0 1.06944 5 94 1.256592 5 15.0 2.0052 6 10.7 1430376 6 174 2.326032 7 11.8 1.577424 7 19.8 2.646364 8 12.8 1.711104 8 22.2 2.967696 9 13.7 1.831416 9 24.6 3.288528 10 14.6 1.951728 10 27.0 3.60936 11 154 2.058672 11 27.8 3.716304 12 16.0 2.13888 12 28.6 3.823248 13 16.5 2.20572 13 294 3.930192 14 17.0 2.27256 14 30.2 4.037136 15 17.5 2.3394 15 31.0 4.14408 16 18.0 2.90624 16 31.8 4.241024 17 18.4 2.459712 17 32.6 4.357968 18 18.8 2.513184 18 33.4 4464912 19 19.2 2.566656 19 34.2 4.571856 20 19.6 2.620128 20 35.0 4.6788 25 21.5 2.87412 25 38.0 5.07984 30 23.3 3.114744 30 -42.0 5.61356 35 24.9 3.328632 35 44.0 5.88192 40 26.3 3.515784 40 46.0 6.14928 45 277 3.702936 45 48.0 6.41664 50 291 3.890088 50 50.0 6.684 60 32.0 4.27776 60 54.0 7.21872 70 35.0 4.6788 70 58.0 775344 80 38.0 5.07984 80 61.2 8.181216 90 41.0 548088 90 64.3 8.595624 100 43.5 5.81508 100 67.5 9.0234 120 48.0 6.41664 120 73.0 975864 140 52.5 7.0182 140 77.0 10.29336 160 57.0 7.61976 160 81.0 10.82808 180 61.0 8.15448 180 85.5 11.42964 200 65.0 8.6892 200 90.0 12.0312 225 70.0 9.3576 225 95.5 12.76644 250 75.0 10.0260 250 101.0 13.50168 275 80.0 10.6944 275 104.5 13.96956 300 85.0 11.3628 300 108.0 1443744 400 105.0 14.0364 400 127.0 16.97736 500 124.0 16.57632 500 143.0 1911624 750 170.0 22.7256 750 177.0 23.66136 1,000 208.0 27.80544 1,000 208.0 27.80544 1,250 239.0 31.94952 1,250 239.0 31.94952 1,500 269.0 35.95992 1,500 269.0 35.95992 1,750 297.0 3970296 1,750 297.0 39 70296 (Continued) 112 1997 INTERNATIONAL PLUMBING CODE APPENDIX E TABLE E102 TABLE FOR ESTIMATING DEMAND - {Continued) SUPPLY SYSTEMS PREDOMINANTLY FOR FLUSH TANKS SUPPLY SYSTEMS PREDOMINANTLY FOR FLUSH VALVES Load Demand Load Demand (Water supply fixture units) (Gallons per minute) (Cubic feet per minute) (Water supply fixture units) (Gallons per minute) (Cubic feet per minute) 2,000 325.0 43.446 2,000 325.0 43.446 2,500 380.0 50.7984 2,500 380.0 50.7984 3,000 433.0 57.88344 3,000 433.0 57.88344 4,000 535.0 70.182 4,000 525.0 70.182 5,000 593.0 79.27224 5,000 593.0 79.27224 For SI: 1 gpm = 3.785 Um, 1 cfm = 0.4719 Us. TABLE E103A LOSS OF PRESSURE THROUGH TAPS AND TEES IN POUNDS PER SQUARE INCH (psi) For SI: 1 inch = 25.4 mm, 1 psi = 6.895 kPa, 1 gpm = 3.785 Um. TABLE E103B ALLOWANCE IN EQUIVALENT LENGTH OF PIPE FOR FRICTION LOSS IN VALUES AND THREADED FITTINGS (feet) FITTING OR VALVE SIZE OF TAP OR TEE (Inches) GALLONS PER MINUTE % 3/4 1 11/4 11/2 2 3 10 1.35 0.64 0.18 0.08 3.0 4.0 5.0 20 5.38 2.54 0.77 0.31 0.14 5.0 7.0 30 12.1 572 1.62 0.69 0.33 0.10 1.5 40 2.5 10.2 3.07 1.23 0.58 0.18 6.0 50 10.0 15.9 449 1.92 0.91 0.28 0.6 60 1.0 1.3 6.46 2.76 1.31 0.40 1.1 70 1.9 2.2 8.79 376 178 0.55 0.10 80 1.5 1.9 11.5 4.90 2.32 0.72 0.13 90 8.4 11.2 14.5 6.21 2.94 0.91 0.16 100 15.0 20.0 17.94 7.67 3.63 1.12 0.21 120 Angle valve 8.0 25.8 11.0 5.23 1.61 0.30 140 40.0 35.2 15.0 7.12 2.20 0.41 150 17.2 8.16 2.52 0.47 160 19.6 9.30 2.92 0.54 180 24.8 11.8 3.62 0.68 200 30.7 14.5 448 0.84 225 38.8 18.4 5.6 1.06 250 47.9 22.7 7.00 1.31 275 274 770 1.59 300 32.6 10.1 1.88 For SI: 1 inch = 25.4 mm, 1 psi = 6.895 kPa, 1 gpm = 3.785 Um. TABLE E103B ALLOWANCE IN EQUIVALENT LENGTH OF PIPE FOR FRICTION LOSS IN VALUES AND THREADED FITTINGS (feet) FITTING OR VALVE PIPE SIZES (Inches) 1/2 3/4 1 11/4 11/2 2 21/2 3 45- degree elbow 1.2 1.5 1.8 2.4 3.0 4.0 5.0 6.0 90- degree elbow 2.0 2.5 3.0 4.0 5.0 7.0 8.0 10.0 Tee, run 0.6 0.8 0.9 1.2 1.5 2.0 2.5 3.0 Tee, branch 3.0 4.0 5.0 6.0 7.0 10.0 12.0 15.0 Gate valve 0.4 0.5 0.6 0.8 1.0 1.3 1.6 2.0 Balancing valve 0.8 1.1 1.5 1.9 2.2 3.0 3.7 4.5 Plug -type cock 0.8 1.1 1.5 1.9 2.2 3.0 3.7 4.5 Check valve, swing 5.6 8.4 11.2 14.0 16.8 22.4 28.0 33.6 Globe valve 15.0 20.0 25.0 35.0 45.0 55.0 65.0 80.0 Angle valve 8.0 12.0 15.0 18.0 22.0 28.0 34.0 40.0 For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, I degree = 0.0175 rad. 1997 INTERNATIONAL PLUMBING CODE 113 APPENDIX E TABLE E103C PRESSURE LOSS IN FITTINGS AND VALVES EXPRESSED AS EQUIVALENT LENGTH OF TUBEa (feet) NOMINAL OR FITTINGS VALVES STANDARD SIZE (Inches) 3/8 Standard Ell 90-Degree Tee Coupling - Ball - Gate - Butterfly - Check 1.5 90 Degree 0.5 45 Degree - Side Branch 1.5 Straight Run - 1/2 1 0.5 2 - - - - - 2 5/8 1.5 0.5 2 - - - - - 2.5 3/4 2 0.5 3 - - - - - 3 1 2.5 1 4.5 - - 0.5 - - 4.5 11/4 3 1 5.5 0.5 0.5 0.5 - - 5.5 11/2 4 1.5 7 0.5 0.5 0.5 - - 6.5 2 5.5 2 9 0.5 0.5 0.5 0.5 7.5 9 21/2 7 2.5 12 0.5 0.5 - 1 10 11.5 3 9 3.5 15 1 1 - 1.5 15.5 14.5 31/2 9 3.5 14 1 1 - 2 - 12.5 4 12.5 5 21 1 1 - 2 16 18.5 5 16 6 27 1.5 1.5 - 3 11.5 23.5 6 19 7 34 2 2 - 3.5 13.5 26.5 8 29 11 50 3 3 - 5 12.5 39 a'vl ul. 1 ."G11 = 4J.'+ 111ul, t 111a1 = �uw.a mm, 1 aegree = 0.017J Iaci. e Allowances are for streamlined soldered fittings and recessed threaded fittings. For threaded fittings, double the allowances shown in the table. The equivalent lengths presented above are based on a C factor of 150 in the Hazen- Williams friction loss formula. The lengths shown are rounded to the nearest half foot. 114 1997 INTERNATIONAL PLUMBING CODE w D Z i w a U) Z O J Q C3 U.i a 0 u_ cc H1 9000-- 1_::4 -1::�7RP =:� —T r-- I— :1 =1:�qA : = =:I= 5000 —I 4000 L _ _ I_ I F1 -T —17 -T 30001 I LL N O O T — I— —t —1 — 1 —t — t 20oo L — I — I , - T7 111' I — T I I 1000 —_ — —1—i :R — L__I 400 — 300 — 200, — I 100 r 50 40 30, 20 L I- WPTIT-- 4— TTTRTI:I 9000 TT:IT-IT = =:T =T:gTGTO ,*tItl- r — — rt— fit-rriri -I TTITIT-- 7— T-- TTI -1Tl1 5000 �1T-- 7— T7TnTl� 4000 t-Itlt--- t— tttfiltl� 3000 I I I I I 7T -- 7— T7TF1Tl IIII I I I I IIIII I I I I I I I IIIII ITIT - -- = T4TRTId 1000 � -I- — =4- :TT- F1TO t tIt — -rttrl r11 Ir T IT —7— 7TTIT11 aoo t It — — — t t rl tl-1 300 IIIII I I I I IIII -1 — — T 7 T TI TI 200 IIII I s' I I IUII TIC 100 O N (h If If) O K-tt tI _ T TI TI-I 50 rt 7 Tit TI-1 40 — -� t 30 I I I II ' — T T 1 20 I I I III' I I II 110 _ Tit 5 I 1 _111 I I 1111 a 3 I TI 11 2 I I IIII J —1 -1 -1 H 1 1 N cr) a LO O PRESSURE DROP PER 100 FEET OF TUBE, POUNDS PER SQUARE INCH NOTE. FLUID VELOCITIES IN EXCESS OF 5 TO 8 FEET /SECOND ARE NOT USUALLY RECOMMENDED FIGURE E103A.1 FRICTION LOSS IN SMOOTH PIPEa (Type K, ASTM B 88 Copper Tubing) For SI: I inch = 25.4 mm, I foot = 304.8 mm, I gpm = 3.785 L./m, I psi = 6.895 kPa, I foot per second = 0.305 m/s. a This chart applies to smooth new copper tubing with recessed (Streamline) soldered joints and to the actual sizes of types indicated on the diagram. APPENDIX E 1997 INTERNATIONAL PLUMBING CODE 115 51-- I -- 4 - -- 3 1 I -- 2�_ I I I I I LL 111 LL N O O M IT W O O O WPTIT-- 4— TTTRTI:I 9000 TT:IT-IT = =:T =T:gTGTO ,*tItl- r — — rt— fit-rriri -I TTITIT-- 7— T-- TTI -1Tl1 5000 �1T-- 7— T7TnTl� 4000 t-Itlt--- t— tttfiltl� 3000 I I I I I 7T -- 7— T7TF1Tl IIII I I I I IIIII I I I I I I I IIIII ITIT - -- = T4TRTId 1000 � -I- — =4- :TT- F1TO t tIt — -rttrl r11 Ir T IT —7— 7TTIT11 aoo t It — — — t t rl tl-1 300 IIIII I I I I IIII -1 — — T 7 T TI TI 200 IIII I s' I I IUII TIC 100 O N (h If If) O K-tt tI _ T TI TI-I 50 rt 7 Tit TI-1 40 — -� t 30 I I I II ' — T T 1 20 I I I III' I I II 110 _ Tit 5 I 1 _111 I I 1111 a 3 I TI 11 2 I I IIII J —1 -1 -1 H 1 1 N cr) a LO O PRESSURE DROP PER 100 FEET OF TUBE, POUNDS PER SQUARE INCH NOTE. FLUID VELOCITIES IN EXCESS OF 5 TO 8 FEET /SECOND ARE NOT USUALLY RECOMMENDED FIGURE E103A.1 FRICTION LOSS IN SMOOTH PIPEa (Type K, ASTM B 88 Copper Tubing) For SI: I inch = 25.4 mm, I foot = 304.8 mm, I gpm = 3.785 L./m, I psi = 6.895 kPa, I foot per second = 0.305 m/s. a This chart applies to smooth new copper tubing with recessed (Streamline) soldered joints and to the actual sizes of types indicated on the diagram. APPENDIX E 1997 INTERNATIONAL PLUMBING CODE 115 APPENDIX E Ir w a N Z 0 J a C7 0 J LL 2 3 116 9 000 -1-:4 =1=1 4A = -=4 -T �It1t-- I -rITr ri-I TrITIT - - -T - r 7Tl1r115000 5000 I - - _ I _ -t -1-1 11 tfi - -I� -= - t - a000L-- I -� 11T1 -1-T - T - TTTn -FI 2000 I I I I IIIII II I_ I 1 1111111 IT11= - :4- 1=:F1= R1=1d1000 I =T::TT- PT -II T 3000 I — I— —t —114 — —t — t 2000 L — I I — I 1 ' - � TI Ili' — T I I 1000�K - -- L - -I 400 300 —1- 2001 — 100 _ —I 5o — 1- 40 — — 30 1- s 20 L �Y 10 - _ -I E: 51 - = -1- 4 3I I 2 L— — I- f 1 1 —J..' N O O WPT- IT=- :T =T:TT- I1=I39000 TTITIT-- q- T :TTFTT1 �It1t-- I -rITr ri-I TrITIT - - -T - r 7Tl1r115000 Tyl'rIT-- 7 -r7T1- 1(114" tltlt-- -t - t'fitt1 t-143000 1 1111 I I I 1 11111 7r - - ilf - T - TTTn -FI 2000 I I I I IIIII II I_ I 1 1111111 IT11= - :4- 1=:F1= R1=1d1000 I - =T::TT- PT -II t t1t - t- tttl-14 r - - r7TFIT11 IT -7- 7TFITI1400 -t' It-- —t t H ti -1 300 11111 '0 -1 -- I I I II111 r7TT- 1TI 200 44 II I I I 1111 I `¢ I I I 1 1 L - -_ T TI 100 �. T- 1 tt' ~1 - trt t14 T1 T1150 N"'I A I+ — — + -F + l' +l 130 M u) O N M et Ml O -T 71-120 I I IIIII I I I — +110 T T 115 I 11(11 3�g I I 1 113 I II T - ,� a I �I 12 I I I I III I 1 -1 -1 1 H I l l N M It 1LO O PRESSURE DROP PER 100 FEET OF TUBE, POUNDS PER SQUARE INCH NOTE: FLUID VELOCITIES IN EXCESS OF 5 TO 8 FEET /SECOND ARE NOT USUALLY RECOMMENDED FIGURE E103A.2 FRICTION LOSS IN SMOOTH PIPEe (Type L, ASTM B 88 Copper Tubing) For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 Um, 1 psi = 6.895 kPa, 1 foot per second = 0.305 m/s. a This chart applies to smooth new copper tubing with recessed (Streamline) soldered joints and to the actual sizes of types indicated on the diagram. 1997 INTERNATIONAL PLUMBING CODE 1C 1 APPENDIX E 9000 - -1= = I:q4RR - - :4 T TTITIT-- 1 7— T7TRTI 5000 IT-- 7— T7TF1TI14000 5000 1— — —1— R-1 ri —1 — — — t 4000 �--- - - I1 FT -17-F — I 3000 I — 1 -T 1— - -NI — T —I — t 2000 L — I — i , — T1 I — T I 1000 � i- L ,e 400 D 300 i — I- ¢ 200 L I W n_ rn I Z 100 = =1- J — Q 50 — 1- ¢ 40 — O 30 — I- LL w 20 L I 'Plopc 10 1— 5 G— �'- 4 3L 2 L —�I— yL 1— i N C O M R u O N O O O r W:F:ITI :F TTIT- IT- RTI:39000 T::TT- MT-11 I t It -t fi rt t I-1 1-I TTITIT-- 1 7— T7TRTI 5000 IT-- 7— T7TF1TI14000 1- ItIt--— tfitt- 1t1 3000 IIIII TT -- i I I I IIIII 7— TTT71T1�2oo0 IIII I I I I I IIII I I I I I I I I IIII IT 7= T:TTRTI11000 �I — =T::TTF-1T11 rt tIt — firth -Ifil-I T — — T-TTFITI1 IT — 7— 7 T 1—I TI 1400 -t- It — — — t t t-I 1-I 300 11111 I 1 I I IIII T 7 T >—I TI 200 X111 I I I IIII 100 rt � r i� T 1—I TI -150 7 T 1— 40 t I -H -130 I IIIII T T ri TI � 20 I Til10 -riT1d5 1 T IT114 3 I T-111 2 I IIIII___ \IJ_I_II L IJ!1 M a O N M -t LO O PRESSURE DROP PER 100 FEET OF TUBE, POUNDS PER SQUARE INCH NOTE. FLUID VELOCITIES IN EXCESS OF 5 TO 8 FEET /SECOND ARE NOT USUALLY RECOMMENDED FIGURE E103A.3 FRICTION LOSS IN SMOOTH PIPEe (Type M, ASTM B 88 Copper Tubing) For SI: 1 inch = 25 4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 L/m, 1 psi = 6.895 kPa, 1 foot per second = 0.305 m /s. a This chart applies to smooth new copper tubing with recessed (Streamline) soldered joints and to the actual sizes of types indicated on the diagram. 1997 INTERNATIONAL PLUMBING CODE 117 APPENDIX E FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH N fh of IA c0 n ED 0f o 0 '00000 0 0 0 0 0000 N co vin concoM N i°.) a�j 00 oo�0 o FAIRLYSMOOTH 8000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 W 300 Z 200 cc W a O 190 80 (7 60 Z 50 0O 40 J LL 30 20 10 9 8 7 6 5 4 3 2 1 810000 8000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 200 100 90 BO 70 60 50 40 30 20 10 9 B 7 5 5 4 3 2 N r) a In t0 n aorno N c•� It IA mnao rno O O 00 0000 O O O O C O CCCC� r N 00 aln f0nwrn O FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH FIGURE E103B FRICTION LOSS IN FAIRLY SMOOTH PIPES For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 L /m, 1 psi head per 100 -foot length = 2.26 kPa head per 10 m length, 1 foot per second = 0.305 m/s. a This chart applies to smooth new steel (fairly smooth) pipe and to actual diameters of standard- weight pipe. W Z 2 0: W a rn Z O J Q 0 Z O J LL 118 1997 INTERNATIONAL PLUMBING CODE APPENDIX E FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100o FEET oLENGTH p p o 1 00 O C G C 00000 N M <UD mnW� N M vs SR88 g 9000 8� 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 D Z 200 0: W a C0 100 O 80 80 Cal 60 Z 50 40 J LL 30 20 10 9 8 7 6 5 4 3 2 1 O 10000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 H D Z 200 g 0: W a w 100 O 90 J 80 J 70 a 60 0 50 ? 40 0 J 30 U. 20 10 9 6 7 6 5 4 3 2 pp pp p1 N M � M t9 h ODMO N M 7 M t9 r, 00 MO N C07 VN f09 �OODM S O 0 0 00000- FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH FIGURE E103C FRICTION LOSS IN FAIRLY ROUGH PIPEa For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 Um, 1 psi head per 100 -foot length = 2.26 kPa head per 10 m length, 1 foot per second = 0.305 m/s. a This chart applies to fairly rough pipe and to actual diameters which in general will be less than the actual diameters of the new pipe of the same kind. 1997 INTERNATIONAL PLUMBING CODE 119 FAIRLY ROUGH ����►gyme'��i�'��A 10000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 H D Z 200 g 0: W a w 100 O 90 J 80 J 70 a 60 0 50 ? 40 0 J 30 U. 20 10 9 6 7 6 5 4 3 2 pp pp p1 N M � M t9 h ODMO N M 7 M t9 r, 00 MO N C07 VN f09 �OODM S O 0 0 00000- FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH FIGURE E103C FRICTION LOSS IN FAIRLY ROUGH PIPEa For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 Um, 1 psi head per 100 -foot length = 2.26 kPa head per 10 m length, 1 foot per second = 0.305 m/s. a This chart applies to fairly rough pipe and to actual diameters which in general will be less than the actual diameters of the new pipe of the same kind. 1997 INTERNATIONAL PLUMBING CODE 119 APPENDIX E H D z W a z 0 J Q 0 z O LL FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH a M a N (Drl�orno 0 0 0 0 00000- a m a w wr -wa)° R R !�S 8 °$S 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 I C 8100000 8000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 i i i i L Al i i i % i - �l% i I 1 1 1 ur i v %1 1% i 11 i 1 1 N M Q In <D n CD O N C9 It U) (Dr- CD 0)0 O O OO OOO O 0 0 0 00000— .- N Cl QIn fD I�CD� O FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH FIGURE E103D FRICTION LOSS IN ROUGH PIPES For SI: 1 inch = 25 4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 L/m, 1 psi head per 100 -foot length = 2.26 kPa head per 10 m length, 1 foot per second = 0.305 m /s. a This chart applies to very rough pipe and existing pipe and to their actual diameters. W D z W rn z 0 J C¢7 Z O LL 120 1997 INTERNATIONAL PLUMBING CODE PO 8100000 8000 7000 6000 5000 4000 3000 2000 1000 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 i i i i L Al i i i % i - �l% i I 1 1 1 ur i v %1 1% i 11 i 1 1 N M Q In <D n CD O N C9 It U) (Dr- CD 0)0 O O OO OOO O 0 0 0 00000— .- N Cl QIn fD I�CD� O FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH FIGURE E103D FRICTION LOSS IN ROUGH PIPES For SI: 1 inch = 25 4 mm, 1 foot = 304.8 mm, 1 gpm = 3.785 L/m, 1 psi head per 100 -foot length = 2.26 kPa head per 10 m length, 1 foot per second = 0.305 m /s. a This chart applies to very rough pipe and existing pipe and to their actual diameters. W D z W rn z 0 J C¢7 Z O LL 120 1997 INTERNATIONAL PLUMBING CODE APPENDIX F STRUCTURAL SAFETY F101 GENERAL INFORMATION F101.1 Notches and holes in joists. Notches in the ends of wood joists and rafters shall not exceed one -fourth the depth. Holes shall not be within 2 inches (51 mm) of the top or bottom of the joist or rafter, and the diameter of any such hole shall not exceed one -third of the depth of the joist or rafter. Notches in the top or bottom of joists or rafters shall not exceed one -sixth of the depth and shall not be located in the middle one -third of the span. F101.2 Cutting and notching studs. In exterior walls and bearing partitions, a wood stud shall not be cut or notched to a depth exceeding 25 percent of its width. Cutting or notching of studs to a depth greater than 40 percent of the width of the stud is permitted in nonbearing partitions supporting no loads other than the weight of the partition. F101.3 Holes in studs. Holes in wood studs shall not be greater in diameter than 40 percent of the stud width. Bored holes not greater than 60 percent of the width of the stud are permitted in nonbearing partitions or in any wall where each bored stud is doubled provided not more than two such successive double studs are so bored. In no case shall the edge of the bored hole be nearer than 5/g inch (15 9 mm) to the edge of the stud. Bored holes shall not be located at the same section of stud as a cut or notch. 1997 INTERNATIONAL PLUMBING CODE 121 122 1997 INTERNATIONAL PLUMBING CODE APPENDIX G FUEL -GAS PIPING SECTION G101 GENERAL G101.1 Scope. This appendix chapter shall govern the installa- tion, modification and maintenance of fuel -gas piping systems. The applicability of this code to piping systems extends from the point of delivery to the connections with each utilization de- vice and includes the design, materials, components, fabrica- tion, assembly, installation, testing, inspection, operation and maintenance of such piping systems. G101.1.1 Point of delivery. The point of delivery is the out- let of the service meter assembly, or the outlet of the service regulator or service shutoff valve where a meter is not pro- vided, or where the service meter assembly is located within the building, at the entrance of the supply pipe into the build- ing. For undiluted liquefied petroleum gas systems, the point of delivery is the outlet of the first stage pressure regulator. G101.2 Liquefied petroleum gas storage. The storage system for liquefied petroleum gas shall be designed and installed in accordance with the fire prevention code and NFPA 58. G101.3 Modifications to existing systems. In modifying or adding to existing piping systems, sizes shall be maintained in accordance with this appendix chapter. G101.4 Additional appliances. Where an additional appli- ance is to be served, the existing piping shall be checked to de- termine if it has adequate capacity for all appliances served. If inadequate, the existing system shall be enlarged as required or separate gas piping of adequate capacity shall be provided. G101.5 Identification. For other than black steel pipe, ex- posed gas piping shall be identified by a yellow label marked "Gas" in black letters. The marking shall be spaced at intervals not exceeding 5 feet (1524 mm). The marking shall not be re- quired on pipe located in the same room as the equipment served. All tubing carrying medium - pressure gas shall be marked with a label at the beginning and end of each tubing sec- tion. G101.6 Interconnections. Where two or more meters are installed on the same premises but supply separate consumers, the piping systems shall not be interconnected on the outlet side of the meters. G101.7 Piping meter identification. Piping from multiple meter installations shall be marked with an approved perma- nent identification by the installer so that the piping system supplied by each meter is readily identifiable. SECTION G102 PIPE SIZING G102.1 Minimum sizes. All pipe utilized for the installation, extension and alteration of any gas piping system shall be sized to supply the full number of outlets for the intended purpose. Where gas supply pressure is 0.5 psig (3.5 kPa) or less and the gas meter is located within 3 feet (914 mm) of the building exte- rior, all building piping from the meter outlet downstream (in- cluding the pipe outlets) shall be a minimum of 1/2 inch (12.7 mm) in diameter. G102.2 Gas demand. The hourly volume of gas demand at each outlet shall not be less than the maximum hourly demand, as specified by the manufacturer of the appliance served. G102.2.1 Demand calculation. To calculate the cubic feet per hour (m3/h) of gas required, divide the maximum Btu/h (W) input of an appliance by the average Btu/h (W) heating value per cubic foot (m3) of gas being supplied. G102.3 Appliance demand. Where the Btu/h (W) ratings of the gas appliances to be installed have not been specified, Table G102.3 shall be used as a reference in sizing pipe to estimate the approximate requirements in Btu/h (W) of typical appliances. In all cases; the piping shall have the capacity to supply not less than the actual demand of the installed appliances. G102.4 Gas pipe sizing. The size of gas piping shall be deter- mined in accordance with Section G102.5, Section G102.6, Section G102.7 or Section G102.8. TABLE G102.3 APPROXIMATE MAXIMUM DEMAND OF TYPICAL GAS APPLIANCES APPLIANCE DEMAND IN BTUIH Domestic Clothes dryer 35,000 Gas light 2,000 Incinerator 35,000 Oven, built -in 25,000 Range, free - standing 65,000 Top burner unit, built -in 40,000 Refrigerator 3,000 Residential Barbecue grill 50,000 Fireplace log lighter 5,000 Restaurant Ranged top burners, 2 ovens 150,000 Range -6 top burners, 2-4 ovens 240,000 Steam boiler —per horsepower 50,000 Storage water heater Up to and including 30- gallon tank 30,000 Over 30 and including 50- gallon tank 55,000 For SA: I Btu/h = 0.2931 W 1 gallon = 3.785 L. 1997 INTERNATIONAL PLUMBING CODE 123 APPENDIX G G102.5 Gas pipe sizing by tables. Where the gas pressure is 0.5 psi (3.5 kPa) or less, the following method shall be used to determine the size of gas piping from the point of delivery- 1 Measure the length of piping from the point of delivery to the most remote outlet in the building. 2. In the first column of the applicable table, select the hori- zontal row showing that distance, or next longer distance if the table does not give the exact length. 3. Use this horizontal row to locate all gas demand figures for the system of gas piping. 4 Starting at the most remote outlet, find in the horizontal row just selected, the gas demand for that outlet. If the ex- act figure of demand is not shown, choose the next larger figure to the right in the same row 5 Above this demand figure in the top horizontal row in the table will be found the nominal size of pipe required. 6. For each succeeding section of pipe, determine the total gas demand supplied by such section and then proceed in the manner outlined above to determine the size of each section of pipe. For Schedule 40 gas pipe, use Table G102.5(l); for tubing, use Table G102.5(2); for plastic pipe, use Table G102.5(3), Table G102.5(4) or Table G102.5(5). For corrugated stainless steel tubing, use Table G102.5(6). G102.6 Pipe sizing. The size of gas piping shall be determined by computing the maximum demand quantity in accordance with the following equation. High pressure (1.5 psig and above): Ds (P2 — P2) Y Q = 181.6 Cr lfba 2L (P2 — P2) Y oral = 2237D2.623 1 Cr L Low pressure (less than 1.5 psig): Q = 187.3 D5 AH Cr .fba L 0.541 = 2313D2.623 AH [Cr L where: Q = Rate, cubic feet per hour at 60 °F and 30 -inch mercury column. D = Inside diameter of pipe (inches). P1 = Upstream pressure (psia). P2 = Downstream pressure (psia). Y = Superexpansibility factor. = 1 /supercompressibility factor. Cr = Factor for viscosity, density and temperature. 0.152 = 0.00354ST(S) S = Specific gravity of gas at 60 °F and 30 -inch mercury column. T = Absolute temperature ('Rankine). = t( °F) +460 = Temperature (°F). Z = Viscosity of gas, centipoise (0.012 for natural gas, 0.008 for propane). = 1488 R. R = Viscosity (pounds force per second per square feet). fba = Base friction factor for air at 60 °F (CF 1). L = Length of pipe (feet). AH = Pressure drop, inch water column (27 7 -inch water column = 1 psi). CF = Factor CF = b Oba fb = Base friction factor for any fluid at a given tem- perature ( °F). For SI: °C = ff — 32)/1.8, 1 inch = 25.4 mm, 1 pound per square inch = 6.894 kPa. G102.7 Sizing requirements for special conditions. For con- ditions other than those set forth in Section G102.5 or those covered by Tables G102.5(1) and G102.5(2), such as longer runs or larger sizes of piping, greater gas demands, application of a diversity factor for multiple - family dwellings, pressures higher than 15 inches (3 732 kPa) or lower than 4 inches of wa- ter column (0.995 kPa) pressure, or specific gravity other than 0.6 to 0.8, the size of piping required shall be calculated in an approved manner. G102.8 Sizing calculators. Piping sizes shall be determined by the use of approved, accurate gas flow, computer or pressure drop charts. The maximum pressure drop from point of deliv- ery to any appliance shall not exceed 0.5 inch of water column (0.124 kPa). G102.9 Diversity factor for multiple - family dwelling units. The common gas supply line to multiple - family dwelling units is permitted to be sized for a percentage of the total gas demand. The total gas demand for each common section of pipe shall be sized in accordance with the multiplier indicated in Table G102.9 Where individual heating equipment is installed in each dwelling unit, the gas demand for such equipment shall be multiplied by 0.9 and added to the demand value of the com- mon piping. 124 1997 INTERNATIONAL PLUMBING CODE APPENDIX .G TABLE 0102.5(1) SIZE OF GAS PIPE MAXIMUM CAPACITY OF PIPE IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 0.5 -Inch Water Column, 0.6 Specific Gravity Gas and Schedule 40 Pipe For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 inch water column = 0.2488 kPa. 1997 INTERNATIONAL PLUMBING CODE 125 NOMINAL PIPE SWUNTERNAL DIAMETER (Inches) LENGTH 0eet) /2 0.6221 /4 0.824 1 1.049 0/4 1.390 11/2 1.610 2 2.067 21/2 2.469 3 3.068 4 4.026 6 6.065 10 175 360 680 1,400 2,100 3,950 6,300 11,000 23,000 69,600 20 120 250 465 950 1,460 2,750 4,350 7,700 1500 49,300 30 97 200 375 770 1,180 2,200 3,520 6,250 12,800 40,200 40 82 170 320 660 990 1,900 3,000 5,300 10,900 34,800 50 73 151 285 580 900 1,680 2,650 4,750 j 9,700 31,200 60 66 138 260 530 810 1,520 2,400 4,300 8,800 28,400 70 61 125 240 490 750 1,400 2,250 3,900 8,100 26,300 80 57 118 220 460 690 1,300 2,050 3,700 7,500 24,600 90 53 110 205 430 650 1,220 1,950 3,450 7,200 23,200 100 50 103 195 400 620 1,150 1,850 3,250 6,700 22,000 125 44 93 175 360 550 1,020 1,650 2,950 6,000 19,700 150 40 84 160 325 500 950 1,500 2,650 5,500 18,000 175 37 77 145 300 460 850 1,370 2,450 5,000 16,000 200 35 72 135 280 430 800 1,280 2,280 4,600 15,600 225 25 57 115 253 392 793 1,230 2,200 4,475 14,688 250 24 54 109 240 372 752 1,185 2,175 4,350 13,934 275 23 52 104 229 355 717 1,140 2,050 4,225 13,286 300 22 50 100 219 340 686 1,090 1,975 4,100 12,720 350 20 46 92 203 314 635 1,043 1,897 3,969 11,777 400 19 43 86 190 294 594 975 1,775 3,712 11,016 450 18 41 81 179 277 560 920 1,673 3,500 10,386 500 17 38 77 170 263 532 872 1,588 3,320 9,853 550 16 37 74 162 251 507 832 1,514 3,166 9,394 600 15 35 71 155 240 485 796 1,449 3,031 8,994 700 14 33 65 143 222 449 737 1,342 2,806 8,327 800 13 30 61 134 208 420 690 1,255 2,625 7,789 900 13 29 58 126 196 396 650 1,183 2,475 7,344 1,000 12 27 1 55 120 186 376 617 1,123 2,348 6,967 For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 inch water column = 0.2488 kPa. 1997 INTERNATIONAL PLUMBING CODE 125 APPENDIX G TABLE 0102,42 SIZE OF GAS TUBING MAXIMUM CAPACITY OF TUBING IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 0.54nch Water Column and 0.6 Specific Gravity Gas For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 inch water column = 0.2488 kPa. 126 1997 INTERNATIONAL PLUMBING CODE TUBING SIZE OD (Inches) LENGTH (feet) ale /2 /e /s r/s 1 /s 1 /e 10 28 66 126 218 341 705 1,251 20 19 44 85 146 229 473 840 30 15 35 67 116 181 375 665 40 13 30 57 98 154 318 564 50 11 26 50 86 135 280 496 60 10 24 45 78 122 252 447 70 9 22 41 71 111 230 409 80 9 20 38 66 103 213 379 90 8 19 36 62 96 199 354 100 8 18 34 58 91 188 333 120 7 16 30 52 82 169 300 140 6 15 28 48 '75 155 274 160 6 13 26 44 69 143 254 180 5 13 24 41 65 134 237 200 5 12 23 39 61 126 224 220 5 11 21 37 58 119 212 240 5 11 20 35 55 113 201 260 4 10 19 34 52 108 192 280 4 10 19 32 50 104 184 300 4 9 18 31 48 100 177 320 4 9 17 30 47 96 171 340 4 9 17 29 45 93 165 360 4 8 16 28 43 90 159 380 4 8 16 27 42 87 155 400 3 8 15 26 1 41 85 150 For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 inch water column = 0.2488 kPa. 126 1997 INTERNATIONAL PLUMBING CODE APPENDIX G TABLE G102.6(3) SIZE OF PLASTIC PIPE (0.062 -INCH WALL MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 0.5 -Inch Water Column and 0.6 Specific Gravity Gas LENGTH (feet) TUBING SIZE OD pnches) % (0.082 wall) 1/2 (0.062 wall) % (0.062 wall) 7/8 (0.062 wall) 10 16 47 103 310 20 11 32 69 208 30 8 25 55 165 40 7 21 46 140 50 6 19 41 123 60 6 17 37 111 70 5 15 34 101 80 5 14 31 94 90 4 13 29 88 100 4 13 27 83 125 4 11 24 73 150 3 10 22 65 175 3 9 20 60 200 3 8 18 55 225 3 8 17 52 250 2 7 1 16 49 For b1: 1 cubic toot per hour= 0.0283 m'/h, 1 inch= 25 4 mm, 1 foot= 304.8 mm, 1 pound per square inch= 6.895 kPa, 1 inch water column = 0.2488 kPa. Note: Capacities based on Mueller Formula for low- pressure installations of smooth tubing under 1 psi. 1997 INTERNATIONAL PLUMBING CODE 127 APPENDIX G TABLE G102.5(4) SIZE OF PLASTIC PIPE (0.0904NCH AND 0.099 -INCH WALL MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 0.5 -inch Water Column and 0.6 Speclfic Gravity Gas LENGTH (feet) TUBING SIZE OD (Inches) % (0.090 wall) 7/8 (0.090 wall) 11/6 (0.099 wall) 11 /8 (0.090 wall) 10 73 242 536 581 20 49 163 360 390 30 39 129 285 309 40 33 109 242 262 50 29 96 213 230 60 26 87 191 207 70 24 79 175 190 80 22 73 162 176 90 21 69 152 164 100 19 64 143 154 125 17 57 126 136 150 15 51 113 122 175 14 47 103 112 200 13 43 96 104 225 12 40 90 97 250 11 38 84 91 275 11 36 80 86 300 10 34 76 82 325 10 33 72 78 350 9 31 69 75 375 9 30 67 72 400 9 29 64 70 500 8 25 57 61 600 7 23 51 55 700 6 21 47 50 800 6 20 43 47 900 5 18 40 44 1,000 5 17 38 41 For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa, 1 inch water column = 0.2488 kPa. Note: Capacities based on Mueller Formula for low- pressure installation of smooth tubing under 1 psi. 128 1997 INTERNATIONAL PLUMBING CODE APPENDIX G TABLE G102.6(51 SIZE OF PLASTIC GAS PIPE MAXIMUM CAPACITY OF PLASTIC PIPE IN CUBIC FEET OF GAS PER HOUR (Based On a Pressure Oros of 0.6 -inch Water Column, 0.6 Specific Gravity Gas and Wali Thickness as specified In Table) For SI: I cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa, 1 inch water column = 0.2488 kPa. Note: Capacities based on Mueller formula for low- pressure installations of smooth tubing under 1 psi. 1997 INTERNATIONAL PLUMBING CODE 129 PIPE SIZE OD (Inches) LENGTH (feet) 1/2 (0.090 Wall) 3/4 (0.095 Wall) 1 (0.119 Wall) 11/4 (0.166 Wall) 11/2 (0.173 Well) 2 (0.216 Wall) 10 212 437 807 1,428 2,192 4,079 20 143 293 542 959 1,471 2,705 30 113 232 429 759 1,165 2,142 40 96 197 364 644 988 1,816 50 84 173 320 566 869 1,597 60 76 156 288 510 782 1,438 70 69 143 264 467 716 1,316 80 64 132 244 432 663 1,219 90 60 124 228 404 620 1,139 100 57 116 215 380 583 1,072 125 50 102 189 344 513 943 150 45 92 170 301 462 849 175 41 84 156 275 423 777 200 38 78 144 255 391 720 225 35 73 135 238 366 672 250 33 69 127 224 344 633 275 32 65 120 212 326 599 300 30 62 114 202 310 570 325 29 59 109 193 296 544 350 28 57 104 185 284 522 375 26 54 100 178 273 501 400 25 52 97 171 263 483 500 22 46 85 151 231 425 600 20 42 77 136 208 383 700 18 38 70 124 190 350 800 17 35 65 115 176 324 900 16 33 61 107 165 303 1,000 1 15 31 1 57 101 155 285 For SI: I cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa, 1 inch water column = 0.2488 kPa. Note: Capacities based on Mueller formula for low- pressure installations of smooth tubing under 1 psi. 1997 INTERNATIONAL PLUMBING CODE 129 APPENDIX G TABLE 0102.5(6) MAXIMUM CAPACITYe OF CORRUGATED STAINLESS STEEL TUBING (CSSn IN CUBIC FEET PER HOUR FOR GAS PRESSURE OF 0.5 PSIG OR LESS AND PRESSURE DROP OF 0.54NCH WATER COLUMN (Based on a 0.60 Specific Gravity Gas) TUBING EHDb FLOW DESIGNATION LENGTH (feet) 13 15 18 19 23 25 30 31 5 46 63 115 134 225 270 471 546 10 32 44 82 95 161 192 330 383 15 25 35 66 77 132 157 267 310 20 22 31 58 67 116 137 231 269 25 19 27 52 60 104 122 206 240 30 18 25 47 55 96 112 188 218 40 15 21 41 47 83 97 162 188 50 13 19 37 42 75 87 144 168 60 12 17 34 38 66 80 131 153 70 11 16 31 36 63 74 121 141 80 10 15 29 33 60 69 113 132 90 10 14 28 32 57 65 107 125 100 9 13 26 30 54 62 101 118 150 7 10 20 23 42 48 78 91 200 6 9 18 21 38 44 71 82 250 1 5 8 16 19 34 39 63 74 300 1 5 7 15 17 32 36 57 67 For SI: 1 cubic foot per hour = 0.0283 m-'/h, 1 inch= 25.4 mm, 1 toot = 3U4.8 mm, t pouna per square mcn = o.ay:) Kral r ucgrna = u.Vj. /j Lau, 1 inch water column = 0.2488 kpa. a Table includes losses for four 90- degree bends and two end fittings. Tubing runs with larger numbers of bends or fittings shall be increased by an equivalent length of tubing to the following equation: L = 1.3n where L is additional length (feet) of tubing and n is the number of additional fittings or bends. b Equivalent Hydraulic Diameter (EHD)--A measure of the relative hydraulic efficiency between different tubing sizes. The greater the value of EHD, the greater the gas capacity of the tubing. TABLE G102.9 DEMAND VALUES FOR DETERMINING GAS PIPING SIZE IN MULTIPLE - FAMILY DWELLING UNITS NUMBER OF UNITS MULTIPLIER OF TOTAL CONNECTED LOAD BASED ON SIMILAR APPLIANCES BEING INSTALLED IN EACH UNIT Ranges only Ranges and water heaters 2 0.85 0.77 4 0.65 0.59 6 0.54 0.49 8 0.46 0.44 10 0.42 0.40 15 0.36 0.34 20 0.31 0.30 30 0.25 0.24 40 0.23 0.22 50 0.21 0.20 60 0.19 0.19 70 0.18 0.18 80 0.17 0.16 90 0.16 0.15 100 0.15 0.14 125 0.14 0.14 150 0.13 0.13 175 0.13 0.12 200 0.12 0.11 130 1997 INTERNATIONAL PLUMBING CODE SECTION G103 PIPING MATERIALS G103.1 General. Piping material for the installation, alteration or repair of fuel -gas piping systems shall comply with this sec- tion. G103.2 Piping standards. Fuel -gas pipe shall comply with one of the standards listed in Table G103.2. TABLE G103.2 FUEL GAS PIPE MATERIAL STANDARD (see International Mechanical Code Chapter 16) Aluminum -alloy pipe and tubing ASTM B 210; ASTM B 241 Brass pipe ASTM B 43 Copper or copper -alloy pipe ASTM B 42; ASTM B 302 Copper or copper -alloy tube seamless (TI pe K or L) ASTM B 88 Copper tube seamless (Type ACR) ASTM B 280 Corrugated stainless steel tubing ANSI LC -1 Ductile iron pipe ANSI A 21.52 Plastic pipe and tubing ASTM D 2513 Steel pipe ASTM A 53; ASTM A 106 Steel tubing ASTM A 254, ASTM A 539 G103.3 Corrugated stainless steel tubing. Corrugated stain- less steel tubing systems shall be tested, listed and installed in accordance with ANSI LC -1 G103.4 Plastic piping. Plastic pipe or tubing and compatible fittings shall be installed only underground outside of build- ings. Only polyethylene pipe shall be used with liquefied petro- leum gases and such application shall comply with NFPA 58. Exception: Plastic pipe shall be permitted to terminate above ground outside of buildings where installed in pre - manufactured anodeless risers or service head adapter risers that are installed in accordance with the manufacturer's installation instructions. G103.5 Copper tubing. Copper tubing shall not be used where the gas contains more than an average of 0.3 grain (0.0194 g) of hydrogen sulfide for 100 standard cubic feet (2.8 m3) of gas (a trace as determined under ASTM D 2420). G103.6 Aluminum -alloy pipe and tubing. Aluminum -alloy pipe and tubing shall not be used underground or outside of the structure. G103.7 Fittings. Fittings shall be approved for fuel -gas piping systems. The fittings shall be compatible with, or shall be of the same material as, the pipe or tubing. Bushings shall not be uti- lized. G103.7.1 Flanges. Flange fittings shall conform to ASME B16.1 or ASME B16.5 Gasket material for flanged fittings shall be approved and compatible with the fuel gas being conveyed. APPENDIX G G103.8 Reused pipe. Gas pipe shall be new or shall have been used previously only for the purpose of conveying gas; reused gas pipe shall be in good condition, clean and free from internal obstructions; and burred ends shall be reamed to the full bore of the pipe. Pipe, tubing, fittings, valves, etc., removed from any existing installation shall not be reused unless thoroughly cleaned, inspected and ascertained to be equivalent to new ma- terial. G103.9 Approval. Joints and connections shall be of an ap- proved type for gas piping systems. Joints and connections shall be tested to be gas tight at the test pressures required for the application. G103.9.1 Joints between different piping materials. Joints between different piping materials shall be made with approved adapter fittings. Joints between different metallic piping materials at the point of delivery, and at other loca- tions where necessary, shall be made with approved dielec- tric fittings to isolate electrically above - ground piping from underground piping or to isolate electrically different metal- lic piping materials joined underground. G103.10 Preparation of pipe ends. All pipe shall be cut square, reamed and chamfered and be free of all burrs and ob- structions. Pipe ends shall have full -bore openings and shall not be undercut. G103.11 Joint preparation and installation. Where required by Sections G103.11.1 through G103.19, the preparation and installation of brazed, flared, mechanical, threaded and welded joints shall comply with Sections G103.111 through G103.11.5 G103.11.1 Brazed joints. All joint surfaces shall be cleaned. An approved flux shall be applied where required. The joint shall be brazed with a filler metal conforming to AWS A5.8. Brazing materials shall have a melting point in excess of 1,000 °F (538 °C). Brazing alloys shall not contain phos- phorous. G103.11.2 Flared joints. Flared joints shall be made by a tool designed for that operation. G103.11.3 Mechanical joints. Mechanical joints shall be made with fittings specified by the manufacturer for gas service and shall be installed in accordance with the manufacturer's instructions. G103.11.4 Threaded joints. Threads shall conform to ASME B1.20.1. Pipe -joint compound or tape shall be ap- plied on the male threads only G103.11.5 Welded joints. All joint surfaces shall be cleaned by an approved procedure. The joint shall be welded with an approved filler metal. G103.12 Aluminum -alloy pipe and tubing. Joints between aluminum -alloy pipe and tubing or fittings shall be flared or mechanical joints conforming to Section G103 11 G103.13 Brass pipe. Joints between brass pipe or fittings shall be brazed, mechanical, threaded or welded joints conforming to Section G103 11 G103.14 Copper or copper -alloy pipe. Joints between copper or copper -alloy pipe or fittings shall be brazed, mechanical, threaded or welded joints conforming to Section G103.11 1997 INTERNATIONAL PLUMBING CODE 131 APPENDIX G G103.15 Copper or copper -alloy tubing. Joints between cop- per or copper -alloy tubing or fittings shall be brazed, flared or mechanical joints conforming to Section G103 11. G103.16 Ductile iron pipe. Joints between ductile iron pipe and fittings shall be flanged. Joints shall be installed in accord- ance with the manufacturer's instructions. G103.17 Plastic pipe and tubing. Joints between plastic pipe and tubing or fittings shall be in accordance with Sections G103.17 i through G103.17.5 G103.17.1 General. Plastic pipe, tubing and fittings shall be joined by the solvent- cement method, heat - fusion method, or by means of compression couplings or flanges. The join- ing method used shall be compatible with the materials being joined and shall be in accordance with the pipe manufactur- er's installation instructions. Plastic pipe or tubing shall not be threaded. Heat - fusion or mechanical joints shall be used where joining polyethylene (PE) pipe, tubing or fittings. The joint shall be designed and installed to sustain effectively the longitudinal pull -out forces caused by contraction of the pip - ing or by external loading. G103.17.2 Heat- fusion joints. Only polyolefn (PE and PB) piping shall be heat fused. Joint surfaces shall be clean and free of moisture. All joint surfaces shall be heated to melt temperature and joined. The joint shall be undisturbed until cool in accordance with the manufacturer's installation instructions. G103.17.3 Mechanical compression joints. Mechanical compression joints shall be installed in accordance with the manufacturer's installation instructions. Only compression fittings designed for and specified by the manufacturer for use with plastic pipe in natural gas or LP -gas vapor service shall be used. Mechanical fittings used to connect PE gas piping shall provide for ASTM D 2513 category 1, full - restraint, full -seal joints and shall be so marked. Where compression -type mechanical joints are used, the gasket material in the fitting shall be compatible with the plastic piping and with the gas distributed by the gas compa- ny An internal tubular rigid stiffener shall be used in con- junction with the fitting and the stiffener shall be flush with end of the pipe or tubing and extend at least to the outside end of the compression fitting when installed. The stiffener shall be free of rough or sharp edges and shall not be a force fit into the plastic. A split tubular stiffener shall not be used. G103.17.4 Solvent cementing. Joint surfaces shall be clean and free of moisture. An approved primer shall be applied to PVC pipe, tubing or fittings. An approved solvent cement shall be applied to all joint surfaces. The joint shall be made while the cement is wet. Joints shall be made in accordance with the manufacturer's instructions. Polyolefin plastic pipe, tubing or fittings (PE and PB) shall not be solvent cemented. Solvent- cement or heat - fusion joints shall not be made be- tween different types of plastic. G103.17.5 Flanges and special joints. Flanges or special joints shall be properly qualified by the manufacturer and utilized in accordance with the manufacturer's installation instructions. Polyethylene (PE) pipe and tubing shall not be flared. Polyvinyl chloride (PVC) pipe and tubing shall not be flared unless specified by the manufacturer and only where flared joints are underground. G103.18 Steel pipe. Joints between steel pipe or fittings shall be threaded or welded joints conforming to Section G103.11 or mechanical joints conforming to Section G103.18.1 G103.18.1 Mechanical joints. Joints shall be made with an approved elastomeric seal. Mechanical joints shall be installed in accordance with the manufacturer's instructions. Mechanical joints shall be installed outside and under- ground, unless otherwise approved. G103.19 Steel tubing. Joints between steel tubing or fittings shall be mechanical or welded joints conforming to Section G103.11 G103.20 Connection of plastic to metallic piping. Connec- tions between metallic and plastic piping shall be made under- ground outside of buildings. Underground connections between the metallic piping and the plastic piping shall be made with a mechanical fitting or a factory - assembled, plastic -to- steel transition fitting as specified by the manufacturer for gas piping applications. Exception: Plastic pipe shall be permitted to terminate above ground outside of buildings where installed in pre - manufactured anodeless risers or service head adapter risers that are installed in accordance with the manufacturer's installation instructions. G103.20.1 Compression -end riser transitions. Where connecting plastic pipe to a compression -end metallic riser below ground, there shall be a minimum of 12 inches (305 mm) of horizontal length of metallic piping under- ground at the end of any plastic piping installed, and any un- derground gas carrying metallic piping shall be suitably pro- tected against corrosion. The metallic piping shall be of adequate length and size so that stress or strain is not placed on the plastic piping. G103.20.2 Aodeless riser and service head adapter riser transitions. Where terminating polyethylene gas pipe above ground, only anodeless risers and service head adapter risers designed and specified by the manufacturer for such use shall be used. The above - ground portion of the polyethylene shall be centered in the metallic casing to ensure that the tem- perature of the polyethylene pipe does not exceed 140 °F (60-C). G103.21 Corrosion protection. Metallic pipe or tubing ex- posed to corrosive action, such as soil conditions or moisture, shall be protected in an approved manner. Zinc coatings (galva- nizing) shall not be deemed adequate protection for gas piping below ground. Ferrous metals exposed in exterior locations shall be protected from corrosion in a manner satisfactory to the code official. G103.21.1 Protective coatings and wrapping. Gas pipe protective coatings shall be approved types and machine ap- plied, and shall conform to recognized standards. Field wrapping shall provide equivalent protection and is re- stricted to fittings, short sections and where the factory wrap has been damaged or necessarily stripped for threading or welding. 182 1997 INTERNATIONAL PLUMBING CODE G103.22 Joint compounds. Joint compounds shall be applied only to the male threads. Such compounds shall be resistant to the action of liquefied petroleum gases. G103.23 Specifications for metallic pipe threads. Pipe and fitting threads shall comply with ASME B1.20.1 and Sections G103.23 1 and G103.23.2. G103.23.1 Damaged threads or welds. Pipe with threads that are stripped, chipped, corroded or otherwise damaged shall not be used. If a weld opens, or defects in lap- or butt - welded pipe are evidenced during the operation of cutting or threading or at any other time, that portion of the pipe shall not be used. G103.23.2 Number and length of threads. Pipe shall be threaded in accordance with Table G103.23.2. TABLE G103.23.2 SPECIFICATIONS FOR THREADED PIPE IRON PIPE SIZE (Inches) APPROXIMATE LENGTH OF THREADED PORTION (Inches) APPROXIMATE NUMBER OF THREADS TO BE CUT 1/2 3/4 10 3/4 3/4 10 1 7/8 10 11/4 1 11 11/2 1 11 2 1 11 21/2 11/2 12 3 11/2 12 4 15 /g 13 For SI: 1 inch = 25.4 mm. SECTION G104 PIPING SYSTEM INSTALLATION G104.1 Location limitations. Gas piping inside any building shall not be run in or through an air duct, clothes chute, chimney or vent, ventilating duct, dumbwaiter, elevator shaft, or con- cealed plenum. G104.2 Piping in solid partitions and walls. Concealed pip- ing shall not be located in solid partitions and solid walls, unless installed in a chase or casing. G1043 Piping in concealed locations. Portions of a gas pip- ing system installed in concealed locations shall not have unions, tubing fittings or running threads. G104.4 Grounding. Gas piping shall not be used as a ground- ing electrode. G104.5 Piping through foundation walls. Where installed to pass through masonry, gas piping shall be encased in a sleeve. The sleeve shall be sealed at the outside of the foundation wall to prevent entry of water. Gas piping shall not penetrate a build- ing foundation wall below grade. APPENDIX G G104.6 Protection against physical damage. In concealed locations, where gas piping other than black or galvanized steel is installed through holes or notches in wood studs, joists, raf- ters or similar members less than 11/4 inches (32 mm) from the nearest edge of the member, the pipe shall be protected -by shield plates. Shield plates shall be a minimum of 1 /16 -inch- thick (1.6 mm) steel, shall cover the area of the pipe where the member is notched or bored, and shall extend a minimum of 4 inches (102 mm) above sole plates, below top plates and to each side of a stud, joist or rafter. G104.7 Piping in solid floors. Piping shall not be installed in solid floor slabs, such as concrete or masonry, except where the code official determines that there is no other practical manner of installing such piping. For this type of floor construction, the house piping shall be installed above the floor, in an open or furred space, hollow partition, hollow wall, attic space, or pipe chase. G104.7.1 Alternative installation. Where the code official determines that it is not practical to avoid the installation of piping in solid floors, one of the following methods of instal- lation shall be followed where approved: 1 Piping shall be installed in a casing of Schedule 40 steel pipe with tightly sealed ends and joints. Both ends of the casing shall extend at least 2 inches (51 mm) beyond the point where the pipe emerges from the floor. 2. Piping shall be installed in a channel in the floor. Such channel shall be suitably covered so as to permit access to the piping and prevent the entrance of corrosive ma- terials, or it shall be filled with a noncorrosive material that, when removed, will cause a minimum of damage to the floor. G104.8 Piping passing above grade through solid floors and solid walls. One of the following methods of installation shall be used to install above -grade piping through solid floors and solid walls, unless otherwise approved by the code official. Piping passing through masonry floors and walls shall be pro- tected by a sleeve. 1. Piping shall be installed in a casing, or through an opening of adequate size. Piping shall be encased in a 1.3 mixture of cement and sand, coating shall not be less than 3/4 -inch (19 mm) thick. G104.9 Separate ditch for gas piping. The laying or installing of gas piping in the same trench with water, sewer or drainage pipe is prohibited, except where approved. G104.10 Protection against corrosion. Metallic gas piping in contact with earth or other material that will corrode the piping shall be protected against corrosion. When dissimilar metals are joined underground, an insulated coupling shall be used. Metallic piping shall not be laid in contact with cinders. G104.11 Minimum burial depth. Underground piping sys- tems shall be installed a minimum depth of 18 inches (457 mm) below grade, except as provided for in Section G104 11 1 G104.11.1 Individual outside appliances. Individual gas lines to outside lights, grills or other appliances shall be installed a minimum of 8 inches (203 mm) below grade, pro- vided that such installation is approved and is installed in locations not susceptible to physical damage. 1997 INTERNATIONAL PLUMBING CODE 133 APPENDDC G G104.12 Buried building piping. Piping shall not be installed in such a way as to be in contact with the ground or fill under a building or floor slab. G104.13 Hanger and support. Pipe supports shall be in accordance with Section 308. G104.14 Pipe bends. Changes in direction of gas piping shall be made by the use of fittings or by the use of bends made in accordance with Sections G10414 1 and G104 14.2. G104.14.1 Metallic pipe bends. All bends shall be smooth and free from buckling, cracks or other evidence of mechani- cal damage, and shall be made only with bending equipment and procedures intended for that purpose. The longitudinal weld of the pipe shall be near the neutral axis of the bend. Pipe shall not be bent through an arc of more than 90 degrees (1.6 rad). The inside radius of a bend shall not be less than six times the outside diameter of the pipe. G104.14.2 Plastic pipe bends. Bending of plastic pipe shall be in accordance with the pipe manufacturer's installation instructions. G104.15 Location of outlets. The unthreaded portion of gas piping outlets shall extend not less than 1 inch (25 mm) through finished ceilings and walls, and where extending through floors or outdoor patios and slabs, shall not be less than 2 inches (51 mm) above them. The outlet fitting or piping shall be securely fastened. Outlets shall not be placed behind doors. Outlets shall be far enough from floors, walls, patios, slabs and ceilings to permit the use of proper wrenches without straining, bending or damaging the piping. Exception: Listed and labeled flush - mounted -type quick - disconnect devices or listed and labeled gas convenience outlets shall be installed in accordance with the manufactur- er's installation instructions. G104.16 Outlet closures. Gas outlets that do not connect to ap- pliances shall be capped gas tight. G104.17 Plastic piping limitations. Plastic pipe shall not be used within or under any building or slab or be operated at pres- sures greater than 100 psig (689 kPa) for natural gas or 30 psig (207 kPa) for LP -gas. G104.17.1 Tracer for plastic piping. A yellow insulated copper tracer wire or other approved conductor shall be installed adjacent to underground nonmetallic gas piping. Access shall be provided to the tracer wire or the tracer wire shall terminate above ground at each end of the nonmetallic gas piping. The tracer wire size shall not be less than 18 AWG and the insulation type shall be suitable for direct buri- al. G104.18 Testing of piping. Before any system of gas piping is finally put in service, it shall be tested to ensure that it is gas tight. Where any part of the system is to be enclosed or con- cealed, this test shall precede the work of closing in. To test for tightness, the piping shall be filled with air or inert gas, but not with any other gas or liquid. Testing, inspection and purging of gas piping systems shall comply with NFPA 54 G104.18.1 Test instruments. Test pressure shall be mea- sured with an approved instrument. SECTION G105 GAS SHUTOFF VALVES G105.1 Appliance connection. Every gas outlet shall have an individual shutoff valve. The shutoff valve shall be in the same room and within 6 feet (1829 mm) of the appliance served. Ac- cess shall be provided to the shutoff valve. G105.2 Shutoff valves for multiple house lines. In multiple - tenant buildings, where a common piping system is installed to supply other than one- or two - family dwellings, shutoff valves shall be provided for each tenant. Shutoff valves shall be acces- sible to the tenant served. G105.2.1 Individual buildings. In a common system ser- vicing a number of individual buildings, shutoff valves shall be installed outside at each building. G105.3 Valve approval. Shutoff valves shall be of an ap- proved type. Shutoff valves shall be constructed with materials compatible with the gas piping. Shutoff valves shall be ap- proved and comply with ANSI Z21.15, ANSI Z21.21 or ASME B16.33 G105.4 Prohibited locations. Shutoff valves for gas piping shall be prohibited in all concealed locations and all spaces used as plenums. G105.5 Accessibility of gas valves. Shutoff valves controlling separate piping systems shall be placed an adequate distance from each other so they will be readily accessible for operation and shall be installed so as to be protected from damage. Shut- off valves shall be plainly marked with an identification tag at- tached by the installer so that the piping systems supplied by such valves are readily identified. G105.6 Exterior shutoff. An exterior shutoff valve shall be provided for each structure. G105.7 Meter valve. Every meter shall be equipped with a shutoff valve located on the supply side of the meter. SECTION G106 TWO -PSI AND HIGHER GAS PIPING G106.1 Scope. The requirements of this chapter are applicable to 2 -psi (13.8 kPa) gas piping installations except as modified by this section. G106.2 Two -psi piping systems. Two -psi (13.8 kPa) gas pip- ing systems designed in accordance with this chapter and other requirements of this code are intended for use where the build- ing service regulator has been set to deliver gas at 2 psi (13.8 kPa). G106.3 Required size for 2 -psi piping. The size of gas piping for 2 -psi (13.8 kPa) gas pressure from the point of delivery to the medium pressure (MP) regulator shall be determined in accordance with the following procedure: 1 Measure the length of piping from the point where the building piping begins to the most remote MP regulator. 134 1997 INTERNATIONAL PLUMBING CODE 2. In the first vertical column in Table G106.3(1), select the horizontal row showing that distance or the next longer distance where the table does not give the exact length. 3 Use this horizontal row to locate all gas demand figures for this particular system of gas piping. 4 Starting at the most remote MP regulator, find in the hori- zontal row just selected, the gas demand for that regulator. Where the text figure of demand is not shown, choose the next larger figure to the right in the same row 5 Above this demand figure, in the top horizontal row in Table G106.3(1), will be found the nominal size of piping required. 6. For each succeeding section of pipe, determine the total gas demand supplied by such section, and then proceed in the manner outlined above to determine the size of each section of piping. 7 For pipe, follow foregoing procedure using Table G106.3(2). G106.4 Piping size from regulator. The size of piping be- tween each MP regulator and the appliance or appliance regula- tor shall be determined in accordance with the following proce- dure: 1 Measure the length of piping from the MP regulator to the most remote outlet served by such regulator. 2. In the first vertical column in Table G106.4, select the hor- izontal row showing that distance or the next longer dis- tance if the table does not give the exact length. 3 Use this horizontal row to locate all gas demand figures for each section of gas piping served by the MP regulator. 4 Starting at the most remote outlet served by the MP regu- lator, find in the horizontal row just selected the gas de- APPENDIX G mand for that outlet. If the exact figure of demand is not shown, choose the next larger figure to the right in the same row 5 Above this demand figure, in the top horizontal row in Table G106.4, will be found the size of tubing required. 6. For each succeeding section of tubing downstream of the MP regulator, determine the total gas demand supplied by each section and then proceed in the manner outlined above to determine the size of each section of tubing. 7 Utilizing the foregoing procedure, determine the size of tubing downstream of each MP regulator. G106.5 Sizing requirements for special conditions. For con- ditions other than those set forth in Sections G106.3 and G106.4 or those covered by Tables G106.3(1), G106.3(2) and G106.4, such as longer runs or larger sizes of piping; greater gas demands; application of a diversity factor when piping multiple - family dwellings; pressures other than 2 psi (13.8 kPa) or lower than 4 inches of water column pressure (995 Pa); or specific gravity other than 0.55 to 0.75, the size of piping re- quired shall be calculated in an approved manner. The maxi- mum design operating pressure for piping systems located in- side buildings shall be 5 psi (34.5 kPa), except where otherwise approved by the code official, and one or more of the following conditions are met: 1 The piping system is located within industrial processing or heating structures. 2. The piping system is located within research structures. 3 The piping system is located within structures that exclu- sively contain boilers or mechanical equipment. 4 The piping system is welded steel pipe. 5 The piping is a temporary installation for structures under construction. TABLE G106.3(1) SIZE OF GAS TUBING MAXIMUM CAPACITY OF TUBING IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 1.5 psi and 0.6 Specific Gravity Gas LENGTH (feet) OUTSIDE DIAMETER OF TUBING pnch) 3/8 1/2 % 7/9 5 501 1,062 2,222 5,706 10 336 713 1,491 3,831 15 266 565 1,181 3,034 20 226 479 1,001 2,571 30 179 379 793 2,037 40 151 321 672 1,726 50 133 283 591 1,518 60 120 255 532 1,367 70 110 233 487 1,251 80 102 216 451 1,159 90 95 202 422 1,083 100 89 190 397 1,019 125 79 167 349 897 150 71 150 314 807 200 60 127 1 266 684 For SI: 1 cubic foot per hour = 0.0283 m3 /h, 1 inch = 25 4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa. 1997 INTERNATIONAL PLUMBING CODE 135 APPENDIX G TABLE G106.3(2) SIZE OF GAS PIPE MAXIMUM CAPACITY OF PIPE IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 1.5 pal, 0.6 Specific Gravity Gas and Schedule 40 Pipe LENGTH (feet) NOMINAL DIAMETER pnch) 1/2 3/4 10 1,990 4,170 20 1,370 2,860 30 1,100 2,300 40 940 1,970 50 830 1,740 60 760 1,580 70 700 1,450 80 650 1,350 90 610 1,270 100 570 1,200 125 510 1,060 150 460 960 175 425 890 200 395 820 For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch = 6.895 kPa. TABLE G106.4 SIZE OF GAS TUBING MAXIMUM CAPACITY OF TUBING IN CUBIC FEET OF GAS PER HOUR Based on a Pressure Drop of 1 -Inch Water Column and 0.6 Specific Gravity Gas LENGTH (feet) OUTSIDE DIAMETER OF TUBING (inch) 3/8 1/2 5/8 7/8 2 97 207 433 1,111 4 65 139 290 746 6 52 110 230 591 8 44 93 195 501 10 39 82 171 440 15 31 65 136 349 20 26 55 115 296 25 23 48 101 260 30 21 44 91 234 40 17 37 77 198 50 15 32 68 175 75 12 26 54 139 100 10 22 1 46 117 For SI: 1 cubic foot per hour = 0.0283 m3/h, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 inch water column = 0.2488 kPa. SECTION G107 GAS FLOW CONTROLS G107.1 Gas pressure regulators. A gas pressure regulator or gas equipment pressure regulator shall be installed where the gas appliance is designed to operate at a lower pressure than the fuel gas system. Access shall be provided to pressure regula- tors. Pressure regulators shall be protected from physical dam- age. Regulators installed on the exterior of the building shall be approved for outdoor installation. G107.2 Second stage LP -gas regulators. Second stage regu- lators for undiluted liquefied petroleum (LP) gas piping sys- tems shall be listed and labeled in accordance with UL 144 G107.3 MP regulators. MP pressure regulators installed in the 2 -psi (13.8 kPa) portions of the piping system shall comply with the following: 1 The MP regulator shall be approved and shall be suitable for the inlet and outlet gas pressures for the application. 2. The MP regulator shall maintain a reduced outlet pressure under lockup (no -flow) conditions. 3 The capacity of the MP regulator, determined by pub- lished ratings of its manufacturer, shall be adequate to supply the appliances served. 4 The MP pressure regulator shall be accessible for servic- ing. Where located indoors, the regulator shall be vented to outdoors or equipped with a leak - limiting device, in ei- ther case complying with Section G107 4 136 1997 INTERNATIONAL PLUMBING CODE 5 MP pressure regulators shall be so installed on the piping system that they cannot be concealed by building construction. 6. Where there is more than one MP regulator in the com- plete piping system served by one meter, a listed shutoff valve shall be installed immediately ahead of each MP regulator. G107.4 Venting of regulators. Gas pressure regulators that re- quire a vent shall have an independent vent to the outside of the building: The vent shall be designed to prevent the entry of wa- ter or foreign objects. Exception: A vent to the outside of the building is not re- quired for second stage regulators equipped with and labeled for utilization with approved vent - limiting devices. SECTION G108 INSTALLATION REQUIREMENTS FOR UNDILUTED LIQUEFIED PETROLEUM GASES (BUTANE AND PROPANE) G108.1 Scope. This section contains specific requirements APPENDIX G covering the installation of gas piping and appliances where undiluted liquefied petroleum gas is to be used. The code re- quirements of this chapter are applicable to undiluted liquefied petroleum gas installations except as modified in this section. G108.2 Size of pipe or tubing. Piping sizes shall be calculated by one of the following: 1 As specified in Section G102.5, except substitute Table G108.2(1) for Table G102.5(1), substitute Table G108.2(2) for Table G102.5(2) and substitute Table G108.2(4) for Table G102.5(6). 2. As specified in Section G103.2 and G103.5 with the fol- lowing modifications: Sizing shall be determined based on a gas - heating value of 1,000 Btu (1055 056 J) pet cubic foot (0.028 m) and a specific gravity of 0.60. The size of the pipe thus obtained shall be reduced to the size of pipe or tubing listed in Table G108.2(3) which compensates for the difference in gases. G108.3 Appliance regulators. When regulators are used with liquefied petroleum appliances, they shall be listed for such use and installed in accordance with their listing. TABLE G108.2(1) CAPACITY OF SCHEDULE 40 PIPE THOUSANDS OF BTU /H OF UNDILUTED LIQUEFIED PETROLEUM GAS AT A PRESSURE DROP OF 0.5 -INCH WATER COLUMN LENGTH OF PIPE NOMINAL PIPE DIAMETER (Inch) (feet) 1/2 3/4 1 11/4 11/2 2 10 275 567 1,071 2,205 3,307 6,221 20 189 393 732 1,496 2,299 4,331 30 152 315 590 1,212 1,858 3,465 40 129 267 504 1,039 1,559 2,992 50 114 237 448 913 1,417 2,646 60 103 217 409 834 1,275 2,394 70 96 196 378 771 1,181 2,205 80 89 185 346 724 1,086 2,047 90 83 173 322 677 1,023 1,921 100 78 162 307 630 976 1,811 125 69 146 275 567 866 1,606 150 63 132 252 511 787 1,496 For Si: 1 litu /h = U.2931 W, I inch = 25.4 mm, 1 foot = 304.8 mm, 1 inch water column = 0.2488 kPa. TABLE G108.2(2) CAPACITY OF SEMIRIGID TUBING THOUSANDS OF BTU /H OF UNDILUTED LIQUEFIED PETROLEUM GAS AT A PRESSURE DROP OF 0.5 -INCH WATER COLUMN LENGTH OF TUBING OUTSIDE DIAMETER (Inch) (feet) 3/8 1/2 5/8 3/4 7/8 10 39 92 199 329 501 20 26 62 131 216 346 30 21 50 107 181 277 40 19 41 90 145 233 50 — 37 79 131 198 60 — 35 72 121 187 70 — 31 67 112 164 80 — 29 62 104 155 90 — 27 59 95 146 100 — 27 55 90 138 For SI: 1 Btu/h = 0.2931 W, 1 inch = 25 4 mm, 1 foot = 304.8 mm, I inch water column = 0.2488 kPa. 1997 INTERNATIONAL PLUMBING CODE 137 APPENDIX G TABLE G108.2(3 CORRESPONDING SIZES SUITABLE FOR UNDILUTED LP -GASES BASED ON SIZES REQUIRED FOR NATURAL GAS SIZE REOUIRED FOR 1,000 BTU/H 0.60 NATURAL GAS IRON PIPE [nominal diameter (Inches)] CORRESPONDING SIZES SUITABLE FOR UNDILUTED LP -GASES Iron pipe [nominal diameter (Inches)] Copper tubing outside diameter (Inches) 1/2 3/8 5/8 3/4 1/2 3/4 1 3/4 7/8 11/4 1 11/8 11/2 11/4 13/8 2 11/2 15/8 21/2 2 21/8 3 21/2 — 4 3 — 6 6 — For SI: 1 Btu/b = 0.2931 W, 1 inch = 25.4 mm, 1 foot = 304.8 mm. TABLE G108.2(4) CAPACITI(a OF CORRUGATED STAINLESS STEEL TUBING THOUSANDS OF BTUM OF UNDILUTED LIQUEFIED PETROLEUM GAS AT A PRESSURE DROP OF 0.5 -INCH WATER COLUMN TUBING LENGTH EHD FLOW DESIGNATION (feet) 13 15 18 19 23 25 30 31 5 72 99 181 211 355 426 744 863 10 50 69 129 150 254 303 521 605 15 39 55 104 121 208 248 422 490 20 34 49 91 106 183 216 365 425 25 30 42 82 94 164 192 325 379 30 28 39 74 87 151 177 297 344 40 23 33 64 74 131 153 256 297 50 20 30 58 66 118 137 227 265 60 19 26 53 60 107 126 207 241 70 17 25 49 57 99 117 191 222 80 15 23 45 52 94 109 178 208 90 15 22 44 50 90 102 169 197 100 14 20 41 47 85 98 159 186 150 11 15 31 36 66 75 123 143 200 9 14 28 33 60 69 112 129 250 8 12 25 30 53 61 99 117 300 8 11 23 26 50 57 90 107 For SI: 1 Btu/h =0.2931 W, 1 inch= 25.4 mm, 1 foot =304.8 mm, 1 inch water column = 0.2488 kPa, 1 degree = 0.175 rad. a Table includes losses for four 90- degree bends and two end fittings. Tubing runs with larger number of bends or fittings shall be increased by an equivalent length of tubing according to the following equation: L = 1.3n, where L is additional length (feet) of tubing and n is the number of additional fittings or bends. b Equivalent Hydraulic Diameter (EHD} —A measure of the relative hydraulic efficiency between different tubing sizes. The greater the value of EHD, the greater the gas capacity of the tubing. SECTION G109 shall not enter a motor - operated appliance through an un- APPLIANCE CONNECTIONS protected knockout opening. 3 Listed and labeled gas appliance connectors installed in G109.1 Connecting gas appliances. Gas appliances shall be accordance with the manufacturer's installation instruc- connected to the building piping by one of the following: tions and located entirely in the same room as the appli- 1. Rigid metallic pipe and fittings, ance. 2. Semirigid metallic tubing and metallic fittings. Except 4 Listed and labeled quick - disconnect devices used in con - where approved by the code official, lengths shall not ex- junction with listed and labeled gas appliance connectors. ceed 6 feet (1829 mm) and shall be located entirely in the 5 Listed and labeled gas convenience outlets in conjunction same room as the appliance. Semirigid metallic tubing with listed and labeled gas appliance connectors. 138 1997 INTERNATIONAL PLUMBING CODE 6. Listed and labeled gas appliance connectors complying with ANSI Z21.69 and listed for use with food service equipment having casters, or that is otherwise subject to movement for cleaning, and other large movable gas uti- lization equipment. G109.1.1 Protection from damage. Connector and tubing shall be installed so as to be protected against physical dam- age. G109.1.2 Appliance fuel connectors. Appliance connec- tions shall have a diameter not less than that of the inlet con- nection to the appliance as provided by the manufacturer. Connectors shall have an overall length not to exceed 3 feet (914 mm), except range and domestic clothes dryer connec- tors, which shall not exceed 6 feet (1829 mm). Connectors shall not be concealed within, or extended through, walls, floors, partitions, ceilings or appliance housings. A shutoff valve not less than the nominal size of the connector shall be accessible at the gas piping outlet immediately ahead of the APPENDIX G connector. Connectors shall be of adequate size to provide the total demand of the connected appliance based on Table G1091.2(1) or Table G109 1.2(2) as applicable. G109.2 Appliance shutoff valve. Each gas appliance shall have an accessible gas shutoff valve or listed and labeled gas convenience outlet located not farther than 6 feet (1829 mm) from the appliance, installed upstream from the union, connec- tor or quick- disconnect device it serves, and in the same room as the appliance. G109.3 Movable appliances. Where gas appliances are equipped with casters or are otherwise subject to periodic movement or relocation for purposes such as routine cleaning and maintenance, such appliances shall be connected to the gas supply system .piping by means of an approved flexible connec- tor designed and labeled for the application. Such flexible con- nectors shall be installed -and protected against physical dam- age in accordance with the .manufacturer's installation instructions. TABLE G109.1.2(1) CAPACITIES OF LISTED METAL APPLIANCE CONNECTORSe FOR USE WITH GAS PRESSURE 8-INCH OR MORE WATER COLUMN SEMIRIGID CONNECTOR OUTSIDE DIAMETER (Inch) FLEXIBLE CONNECTOR NOMINAL INSIDE DIAMETER (Inch) MAXIMUM CAPACITIES IN THOUSANDS BTU/ (Based on pressure drop of 0.44nch water column) Natural garb of 1,100 Btu per cubic feet All gas appliances Ranges and domestic clothes dryers only 1 foot 11/2 feet 2 feet 21/2 feet 3 feet 4 feet 5 feet 6 feet 3/8 1/4 40 33 29 27 25 101 90 80 1/2 /8 93 76 66 62 58 /g 1/2 189 155 134 125 116 — 3/4 404 330 287 266 244 — 1 1 803 661 573 534 500 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 Btu /ft3 = 10.35 W /m3, 1 Btu/h = 0.2931 W, 1 inch water column = 0.2488 kPa. connectors are certified by the testing agency as complete assemblies, including fittings and valves. Capacities shown are based on the use of fittings and ,es supplied with the connector. liquefied petroleum gas, use 1.6 times the natural gas capacities shown. TABLE G109.1.2(2) CAPACITIES OF LISTED METAL APPLIANCE CONNECTORSO FOR USE WITH GAS PRESSURES LESS THAN 84NCH WATER COLUMN SEMIRIGID >NNECTOR DUTSIDE IETERb (Inch) FLEXIBLE CONNECTOR NOMINAL INSIDE DIAMETERS (Inch) MAXIMUM CAPACITIES IN THOUSANDS BTU/H (Based on pressure drop of 0.44nch water column) Natural gasd of 1,100 Btu per cubic foot All gas appliances Ranges and domestic clothes dryers only 1 foot 11/2 feet 2 feet 21/2 feet 3 feet 4 feet 5 feet 6 feet 3/8 1/4 28 23 20 19 17 72 63 57 1/2 3/8 66 54 47 44 41 5/8 1/2 134 110 95 88 82 — 3/4 285 233 202 188 174 — 1 567 467 405 378 353 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 Btu/ft3 = 10.35 W /m3, 1 Btu/h = 0.2931 W, 1 inch water column = 0.2488 kPa. connectors are certified by the testing agency as complete assemblies, including fittings and valves. Capacities shown are based on the use of fittings and les supplied with the connector. iirigid connector listings are based on outside diameter. rible connector listings are based on nominal diameter. liquefied petroleum gas, use 1.6 times the natural gas capacities shown. INTERNATIONAL PLUMBING CODE 139 APPENDIX G SECTION G110 :CNG GAS - DISPENSING SYSTEMS G110.1 Dispenser protection. The gas dispenser shall have an emergency switch_to shut off the power to the dispenser. An ap- proved backflow device that prevents the reverse flow of gas shall be installed on the gas supply pipe or in the gas dispenser. G110.2 Ventilation. Gas - dispensing systems installed inside the structure shall be ventilated by mechanical means in accordance with International Mechanical Code Chapter 4 G1103 Compressed natural gas vehicular fuel systems. Compressed natural gas (CNG) fuel- dispensing systems for CNG - fueled vehicles shall be designed and installed in accord- ance with NFPA 52 and the fire prevention code. SECTION G111 SUPPLEMENTAL AND STANDBY GAS SUPPLY G111.1 Special supplementary gas. Where air, oxygen or oth- er special supplementary gas is introduced into the gas piping system, an approved backflow preventer shall be installed. The backflow preventer shall be on the gas line to the equipment supplied by the special gas and located between the source of the special gas and the gas meter. G111.2 Standby gas. Where LP -gas or other standby gas is in- terconnected with primary gas piping systems, an approved three -way, two -port valve or approved backcheck safeguard shall be installed to prevent backflow into either supply system. 140 1997 INTERNATIONAL PLUMBING 00_-_ �:_ A ABS PIPE Where permitted ACCESS TO Cleanouts Fixtures Interceptors and separators ACCESSIBLE PLUMBING FACILITIES ADMINISTRATION Applicability Approval Fees Inspections Intent Maintenance Means of appeal Scope Validity Violations AIR ADMITTANCE VALVES Definition Where permitted AIR BREAK Definition Method of providing Required AIR GAP Definition Method of providing Required AIR TEST ALTERATIONS AND REPAIRS ALTERNATIVE MATERIALS AND EQUIPMENT APPROVED Definition ASBESTOS - CEMENT PIPE INDEX 702.1 708 402 1003 404 102 105, 107.6 106.5 107 101.3 102.3 109 101.2 106.4.2 108 202 917 202 802.2 802.2.2 202 608.15.1 608.15.1 312.3 102.4 105.2 202 Where permitted Table 702.2 ATMOSPHERIC VACUUM BREAKER 608.13.6, Material Table 702.1, Table 702.2 608.15.4, 608.15.4 1 AUTOMATIC CLOTHES WASHER 406 B Below sewer level BACKFILLING 306.3 BACKFLOW PREVENTER Definition Definition 202 Double check valves 608.13.7 Required 608.1 Standards Table 608.1 BACKFLOW PROTECTION 608.1 BACKWATER VALVES Change of direction Where required 715 BALL COCK 425.3.1 BAROMETRIC LOOP 608.13.4 BATHTUBS 407 BEDPAN STEAMERS 202 BEDPAN WASHERS 202 BIDETS 408 BOOSTER SYSTEM 606.5.5 BOTTLING ESTABLISHMENT 1003.10 BRASS PIPE Definition Where permitted 702.1 BUILDING DRAIN Definition 202 Material Table 702.1, Table 702.2 Sizing, sanitary Table 709.1 BUILDING DRAINAGE SYSTEMS CHANGE IN DIRECTION OF DRAINAGE PIPING 706.1 Below sewer level 712.1 BUILDING SEWER 803.3 Definition 202 Material Table 702.3 Sizing, sanitary Table 710.1(1) BUILDING SYSTEMS Connection to public water and sewer 701.2 BUILDING TRAPS 1002.6 �� CAST-IRON PIPE Where permitted Table 702. 1, Table 702.2, Table 702.3, Table 702.4 CAULKING FERRULES 705.16 CHANGE IN DIRECTION OF DRAINAGE PIPING 706.1 CHEMICAL WASTE Exclusion from the sewer 803.3 Material Table 702.4 Neutralizing 803.2 CLAY PIPE Table 702.3 CLEANOUTS Base of stack 708.3.4 Building drain 708.3.5 Change of direction 708.3.3 Definition 202 Direction of flow 708.5 Location of 708.3 Manholes 708.3.6 Plugs, materials for Prohibited installation of 708.2 708.6 Size 708.7, 708.8 CODE OFFICIAL Application for permit 106.3 Appointment 103.2 Definition 202 Department records 104.8 Duties and powers 104 General 1041 Identification 104.6 Inspections 107 COMBINED DRAIN 202 COMMON VENTS 202 CONCRETE PIPE Where permitted Table 702.3 CONDUCTOR 202 CONNECTION TO PLUMBING SYSTEM REQUIRED 7012 CONNECTIONS TO SUMPS AND EJECTORS Below sewer level 712.1 CONSERVATION Fixtures 6044 Flow rates Table 604.3 Insulation 505 CONSTRUCTION DOCUMENTS 106.3.1 CONTROLLED FLOW STORM DRAINAGE 11017 COPPER OR COPPER -ALLOY PIPE OR TUBING Where permitted Table 605.4, Table 605.5, Table 606.6 CROSS - CONNECTIONS 608 1997 INTERNATIONAL PLUMBING CODE 141 INDEX CUTTING OR NOTCHING, STRUCTURAL MEMBERS 0 DEAD ENDS IN DRAINAGE SYSTEM DESIGN PROFESSIONAL DETRIMENTAL WASTES DISHWASHING MACHINE DISINFECTION OF POTABLE WATER SYSTEM DISTANCE OF TRAP FROM VENT DISTRIBUTION SYSTEM (See WATER) DRAIN Roof Storm DRAINAGE FIXTURE UNITS Definition, fixture unit Valves for continuous flow Valves for fixtures 610 906.1 1105 1106 202 709.3 Table 709 1 DRAINAGE SYSTEM FIXTURE UNITS Appendix F Definition 704.5 Valves for continuous flow 710.1 Valves for fixtures Table 709.1 FIXTURES (See PLUMBING FIXTURES) 708.3.1 FLOOD LEVEL RIM 704.5 Joints 705 FLOOR DRAINS 109.2 FLOOR DRAINS, EMERGENCY 302 FLOOR FLANGES 409 FLOW RATES 610 906.1 1105 1106 202 709.3 Table 709 1 DRAINAGE SYSTEM 301 Connection to sewer or private disposal system 701.2 .Dead ends 704.5 Determining load and size 710.1 Fixture units Table 709.1 Horizontal drains 708.3.1 Indirect waste 802 Joints 705 Material detrimental to 302 Offset sizing 711 Provisions for future fixtures 710.2 Sizing Table 710.1(1) Slope of piping Table 710.1(1) Sumps and ejectors 712 Testing 312 DRINKING FOUNTAINS E EJECTORS EMPLOYEE FACILITIES EXISTING BUILDING PLUMBING SYSTEMS F FACILITIES FAUCETS FEES FERRULES FITTINGS Drainage system Material standards FIXTURE FITTINGS FIXTURE TRAPS Acid - resisting Building Design of For each fixture Prohibited Seals Setting and protection Size 410 712 403.4 102.2 403 424 FLUSHING DEVICES Flush tanks Flushometer tanks Flushometer valves Required FOOD HANDLING DRAINAGE FOOD WASTE GRINDER FREEZING, PROTECTION OF PIPES FROST CLOSURE FUEL -GAS PIPING FUTURE FIXTURES G GALVANIZED STEEL PIPE 605.5, GARBAGE CAN WASHERS GARBAGE DISPOSALS 202 709.3 709 1, Table 709 1 202 412, Table 709 1 202 405.4 1, 405.4.2 604.3, Table 604.3 Table 604 4, 604 10 425.3, 604.3, 604.5 425.2, 604.3, 604.5 425.2, 604.3 425 802.1 1 413 305.6 904.2 Appendix G 7044 Table 605.5, 605.17 414 413 GENERAL REGULATIONS 301 Connection to plumbing system 413 Connection to public water and sewer 301.3, 301 4 Elevator machinery rooms 301.6 Health and safety 108.7, 108.7 1, 108.7.2, 108.7.3 Materials detrimental 302, 302.1, 302.2 Piping measurements 301.5 Protection of pipes 305 Rodentproofing 304, 304 1, 304.2, 304.3, 304 4 Sleeves 305.4 Strains and stresses in pipe 308 Toilet facilities for workers 311 Trenching, excavation and backfill 306 Washroom requirements 310 GREASEINTERCEPTORS Approval Capacity In commercial buildings Not required Required GUTTERS H 106 HANGERS AND SUPPORTS 705.16 Attachment to buildings Base of stacks 06 7 06 Definitions 702.4 Material Seismic 424 Spacing 1002 HEALTH AND SAFETY 1002.9 HEALTH CARE PLUMBING 1002.6 HEAT EXCHANGER PROTECTION 1002.2 1002.1 HORIZONTAL 1002.3 Slope for drainage i p g pipe 1002.4 HOSPITAL PLUMBING FIXTURES 1002.7 Clinical sinks 1002.5 Height of special controls 202, 1003 1003.2 1003.7 1,1003.7.2 1003.5 1003.1 1 1003.1 1106.6, Table 1106.6 308.4 308.9 202 308.3 308.2 Table 308.5 101.3 422, 609, 713 608.16.3 7041 422 422.6 422.10 142 1997 INTERNATIONAL PLUMBING CODE Sterilizer equipment 422.9 HOT WATER Chapter 5 Heaters and tanks P 6r5 Supply system HOUSE TRAP 1002.6 INDIRECT WASTE 802 Air gap or break 802.2.1, 802.2.2 Food handling establishment 802.1 1 Receptors 802.3 803 Special wastes Waste water temperature 803.1 INDIVIDUAL VENT 907 INSPECTION 1071 Final 107.6 Reinspection 107.3.3 Required 107.3 Rough -in 1071 1071 Scheduling of Polybutylene plastic pipe or tubing INSPECTOR (See CODE OFFICIAL) Polyethylene plastic pipe or tubing INSULATION 505 INTERCEPTORS AND SEPARATORS 3 Access to 1003.13 Approval of 1003.2, 1003.3 Bottling. establishments 1003.10 Capacity of grease interceptors Table 1003202 Definition 1003.9 Laundries Not required 1003.1 1 Oil and flammable liquids separators 1003.7.2 Rate of flow control for grease interceptors 1003.3.2 Required 1003.5, 1003.6 Slaughterhouses 1003.11 Venting 1003.12 IRRIGATION, LAWN 608.16.5 J JOINTS AND CONNECTIONS 605,705 ABS plastic pipe Asbestos cement pipe 705.2 605.11, 705.3 Between different materials 605.21, 705.14 Brass pipe Brazed joints 605.12 605,705 Cast -iron pipe 705.5 605,705 Caulked joint 705.6 Concrete pipe Copper or copper -alloy pipe 605,705 Copper or copper -alloy tubing 705.2, 705.14 1, 705.14.2 CPVC plastic pipe 605.16 308.8 Expansion joints Galvanized steel pipe 605.17 Mechanical joints 605,705 Polybutylene plastic pipe or tubing 605.18 Polyethylene plastic pipe or tubing 605.19 605.9, 707 Prohibited 702 2 PVC plastic pipe 705.12 Slip joints 705.15, 1002.2 Soldered joints 705.8.3 Solvent cementing 605,705 605.10.3 Threaded Vitrified clay pipe 705.13 Welded 605.12.4 K KITCHEN 418 1997 INTERNATIONAL PLUMBING CODE INDEX L LAUNDRIES 1003.9 LAUNDRY TRAY 415 LAVATORIES 416 LEAD PIPE 202 LEADERS 1106 LIGHT AND VENTILATION REQUIREMENT 310.1 LOADING, FIXTURE UNIT VALVE 709 -r u MANHOLES 708.3.6 MANIFOLDS 60410 MATERIAL Above - ground drainage and vent pipe Table 7 Alternative 05.2 07.6 1 102.3 Approval $05.5 Building sewer pipe 1 102.4 102.5 Building storm sewer pipe 704 Chemical waste pipe Fittings Table 605.6, 702.4 Identification .1 605,705 303.1 Joints Roof drains 1105 1105 Sewer pipe Chapter 702.3 Standards Storm drainage pipe Table 1102.4 Subsoil drain pipe Underj� round building drainage and vent pipe 1102.5 702.3 Vent pipe 702 2 Water distribution pipe Table 605.5 Water service pipe Table 605.4 MATERIAL, FIXTURES Quality 402.1 402.2 Special use MATERIAL, SPECIAL 705.16 Caulking ferrules 708.2 Cleanout plugs 402.3 Sheet copper Sheet head 402.4 Soldering bushings 705.17 MECHANICAL JOINTS 605,705 N NONPOTABLE WATER 608.1, 608.8 O OFFSETS 202 Definitions 1 71 11 Drainage 91 Venting 106.4.5 OPENINGS Through walls or roofs $05.5 P Table 4 1 PERMIT Application for 106.3 Conditions of 106.4 Fees 106.5 Suspension of 106.4.5 PIPING Construction documents 105.44 Drainage, horizontal slope Table 4 1 Drainage piping installation 704 Drainage piping offset, size 711 Joints 605,705 PIPING PROTECTION Backfilling 306.3 Breakage 305.2 143 INDEX Corrosion 305.1 Footings 305.5 Freezing 305.6 Penetration 305.5 Tunneling 306.4 PLUMBING FACILITIES 403 PLUMBING FIXTURES RELIEF VALVES Accessible 403 Automatic clothes washers 406 Bidet 408 Clearances 405.3 Definition 202 Dishwashing machine 409 Drainage fixture unit values Table 709.1 Drinking fountain 410 Emergency showers 411 Eyewash stations 411 Floor drains 412 Food waste grinders 413 Future fixtures 7044 Garbage can washer 414 Garbage disposal 413 Hospital 422 Installation 405 Joints at wall or floor 405.5 Kitchen sink 418 Laundry tray 415 Lavatories 416 Minimum facilities Table 403.1 Ornamental pools 423.1 Quality 402.1 Separate facilities 403.1 Settings 405.3 Showers 417 Sinks 418 Slop sinks 418 Toilets 420 Urinals 419 Water closets 420 Water coolers 410 Water supply protection 608 PLUMBING INSPECTOR (See CODE OFFICIAL) PNEUMATIC EJECTORS 712 POLYBTTYLENE PIPE OR TUBING Where permitted Table 605.4 POLYETHYLENE PIPE OR TUBING Cross - linked Table 605.4, Table 605.5 PE -AL -PE Table 605.4, Table 605.5 PEX -AL -PEX Table 605.4, Table 605.5 POTABLE WATER, PROTECTION OF 608 PRESSURE OF WATER DISTRIBUTION 604.6 PROHIBITED Joints and connection 707 Traps 1002.3 PROTECTION OF POTABLE WATER 608 PUMPING EQUIPMENT 712 PVC PIPE Table 605.4, Table 605.5, Table 702.1, Table 702.2 QUALITY OF WATER General 608.1 R RAINWATER DRAINAGE Chapter 11 REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER SERVICE SINKS Definition 202 Periodic inspections 312.9 Standard Table 608.1, 608.13.2, 608.16.2 Where required 608.15.2, 608.16.2, Table 403.1, 417 608.16.4, 608.16.5, 608.16.6 RELIEF VALVES 504.5, 504.6, 504 7, 504.8.1 Definition 202 RELIEF VENT 911 4, 914, 916.2 Definition 202 ROOF DRAINS 1102.6, 1105 Definition 202 ROUGH -IN INSPECTION 1071 P� SANITARY SEWER (See BUILDING SEWER) SANITARY TEES 706.3 SCREWED JOINTS (See JOINTS AND CONNECTIONS) SEPARATE FACILITIES 403.2 SERVICE SINKS Table 403.1, 418 SEWER (See Building Sewer) SHEET COPPER 402.3 SHEET LEAD 402.4 SHOWERS Table 403.1, 417 SILL COCK 424 SINKS 418 SIZING Drainage system 710 Fixture drain 709 Fixture water supply 604.5 Vent system 916 Water distribution system 604 Water service 603.1 SLAUGHTERHOUSES 1003.11 SLEEVES 305.4 SLIP JOINTS (See JOINTS AND CONNECTIONS) SOLDERING BUSHINGS 705.17 SOLVENT CEMENTING (See JOINTS AND CONNECTIONS) SPECIAL PLUMBING FIXTURES 423 SPECIAL WASTES 803 STANDARDS Material Chapter 14 STANDPIPE DRAIN 802.4 STEEL PIPE (See also MATERIAL) Where permitted 605, 702, 1102 STERILIZER PIPE 422.9 STORM DRAINS Building size 1106.1 Building subdrains 1111.2 Building subsoil drains 1111 1 Conductors and connections 1104 Definition 202 General 1101 Prohibited drainage 1101.3 Roof drains 1102.6, 1105 Secondary roof drains 1107 Sizing of conductors, leaders and storm drains 1106 Sizing of roof gutters 1106.6 Sizing of vertical conductors and leaders 1106.2 Traps 1103 Valves for continuous flow 1109 Where required 1101.2 STRAPS (See HANGERS AND SUPPORTS) 144 1997 INTERNATIONAL PLUMBING CODE INDEX STRUCTURAL SAFETY 307, Appendix F Engineered systems 918 SUBDRAIN BUILDING 1111.2 Size and length Table 916.1 903 SUBSOIL DRAIN PIPE 11111 Stack vents Vent terminal 904 SUMP VENT 916.5 Wet vent 909 SUMPS 1111 SUPPORTS (See also PIPING PROTECTION) 308 W SWIMMING POOL Definition 202 WALL HUNG WATER CLOSETS 420 SWIMMING POOL DRAINAGE 802.1.2 WASHING MACHINES 406 T WASTE TEMPERATURE AND PRESSURE RELIEF VALVE 504 Indirect Special 802 803 TEMPERATURE OF WASTE WATER 803.1 WASTE WATER TEMPERATURE 803.1 TEST Drainage and vent air test 312.3 WATER 604 7 Drainage and vent final test 312.4 312.2 Booster Cross - connection 608.6 Drainage and vent water test Forced sewer test 312.7 Distribution piping material Table 605.5 Gravity sewer test 312.6 Excessive pressure 604.8 604.9 Required tests 312.1 Hammer Test of backflow, prevention devices 312.9 WATER CLOSETS 420 Test of conductors 312.8 WATER CONSERVATION THERMAL EXPANSION CONTROL 607.3 Fixtures 6044 THREADED JOINTS (See JOINTS AND CONNECTIONS) Flow rates Table 604 4 TOILET FACILITIES FOR WORKERS 311 WATER HEATERS Chapter 5 TOILETS (See WATER CLOSETS) WIPED JOINTS 705 TRAPS Acid - resisting 1002.9 WORKERS' TOILET FACILITIES 311 Building 1002.6 Design 1002.2 Prohibited types 1002.2 Seal 1002.4 Separate for each fixture 1002.1 Size 709 TRENCHING, EXCAVATION AND BACKFILL 306 TUNNELING 306.4 U UNDERGROUND DRAINAGE AND VENT PIPE 702.2 URINALS 419 V VACUUM BREAKERS 608.1, 608.13.5, 608.13.6 VALVES Air admittance 917 Backwater 715 Definition 202 Pressure reducing 604.8 Relief 504.5 Safety 504.5 VENT Individual 907 Main 903.1 Multiple branch 911.3.1 Sizing Table 908.3, Table 909.3, Table 910.4 VENT RELIEF SIZE 914 VENT STACK Definition 202 VENTS AND VENTING Circuit or loop 911 Combination drain 912 Common 908 Definition 202 Distance from trap Table 906.1 1997 INTERNATIONAL PLUMBING CODE 145 City of Fort Worth, Texas qvagor And Council C DATE REFERENCE NUMBER LOG NAME PAGE 7/14/97 G -12268 06PLUMB 1 of 2 SUBJECT ORDINANCE ADOPTING THE 1997 INTERNATIONAL PLUMBING CODE Mole] ""If D_ L�111 It is recommended that the City Council approve the attached ordinance adopting the 1997 edition of the International Plumbing Code as the Plumbing Code of the City of Fort Worth DISCUSSION Attached is a proposed ordinance adopting the 1997 edition of the International Plumbing Code for the City of Fort Worth. As with the Electrical Code, City staff worked with industry representative, through the North Central Texas Council of Governments (COG) code process, in an effort to establish a complete set of codes to be recommended for use throughout the Metroplex. The recommendation from this body was to depart from the model code currently used and adopt the new International Code that has been developed as part of a set of codes to be used nationally The International Plumbing Code was noted at the COG meetings and by the'City's Plumbing Board as being a qualified code that recognizes new products and installation methods that, without jeopardizing health or safety, provide for a reduction in labor costs associated with plumbing work. This reduction in installation cost is expected to have a positive influence on the construction industry The following provides an explanation for those items that might generate questions Switching to the International Plumbing Code in lieu of renewing the adoption of the current model code—As already noted, this code is to be part of a code set that is being created by what formerly were competing organizations that have joined together in an effort to create a national model code This effort is in response to years of requests by the industry to simplify the construction regulation and design process. This code is also noted for its recognition of newer plumbing products and installation methods, which are expected to reduce associated labor costs of installation 2. Increase in permit fee" small increase, approximately 10 %, in permit fees is being proposed Fees have not been increased in this trade since the mid- 1970's These fees may not represent full cost recovery of the services provided As presented in the adoption of the Electrical Code, staff is proposing to do a total review of all fees charged for Building, Electrical, Mechanical, Plumbing and Sign permits. This review is expected to occur in the summer of 1998 3 Adjustment of registration renewal dates -4 provision is being inserted to adjust the renewal dates on registration Currently, all of the Electrical, Mechanical and Plumbing licenses /registrations must be renewed on January 1 of each year There are thousands of renewals This puts a sizable strain on staff This provision would allow the renewals to be spread throughout the year 4 Removal of job qualifications from code As with the Electrical Code, the job qualifications of the Chief Plumbing Inspector are proposed to be removed from this code It is believed that City of Fort Worth, Texas "agor And Council Communication DATE REFERENCE NUMBER LOG NAME PAGE 7/14/97 G -12268 1 06PLUM6 2 of 2 SUBJECT ORDINANCE ADOPTING THE 1997 INTERNATIONAL PLUMBING CODE provisions concerning years of experience and required licenses are better suited to Human Resource specifications than they would be to the ordinance concerning plumbing installation and inspection provisions. 5 Clarification of enforcement officer —The administrative provisions have been adjusted to clarify that the Building Official is the enforcement officer of this code and that the Chief Plumbing Inspector is the authorized deputy This brings this code in line with the provisions of the Mechanical Code and is the standard method used in other cities. Previous administrative provisions were not clear and portions of the code implied that both individuals had a shared enforcement role. 6 Technical differences between codes—As for the technical portions, while there were noted to be some minor differences in the codes, the general comment of the Plumbing Board was that most of the provisions of the codes were very similar Most plumbers would be able to continue to install plumbing as they always have This code would allow for new methods and materials and result in possible costs savings. Throughout their review of the proposed ordinance, the Plumbing Board considered the basic code and local amendments to insure that: 1 requirements are necessary to provide a minimum level of safety, and 2 the most economical way to achieve the minimum level of safety was reached, and 3 consideration was given to optimize the desire of the City Council to encourage development and construction A public hearing was held by the Board on December 2, 1997 The Board voted to approve the recommendation of staff to adopt the International Plumbing Code After a second review, requested by the Facilities and Infrastructure Committee, the Board on June 8, 1998 again voted to approve the recommendation of staff to adopt the International Plumbing Code. MG j Submitted for City Manager's Office by: Mike Groomer 6140 FUND ACCOUNT I CENTER I AMOUNT CITY SECRETARY (to) APPROVED CITY COUNCIL JUL 14 1998 City Secretary of the City of Fort Worth, Originating Department Head: Ann Kovich 8901 (from) Additional Information Contact: Ann Kovich 8901 wato woo" 49