CORRELATION TASK GROUP REPORT

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3 CORRELATION TASK GROUP REPORT THE SCOPE OF THE CORRELATION TASK GROUP WAS TO IDENTIFY EDITORIAL AND TECHNCIAL INCONSISTENCIES WITHIN THE 2006 UNIFORM PLUMBING CODE AND RECOMMEND PROPOSED CODE CHANGES. THE RECOMMENDED PROPOSED CODE CHANGES WERE PLACED IN THE MONOGRAPH BASED ON NUMBERICAL ORDER ALONG WITH THE ITEM NUMBER AS SHOWN NEXT TO EACH PROPOSAL. THE FOLLOWING ARE RECOMMENDATIONS FROM THE CORRELATION TASK GROUP. Revise as follows: (Item #1) Protectively Coated Pipe. Protectively coated pipe shall be inspected and tested, and any visible void, damage, or imperfection to the pipe coating shall be repaired to comply with Section (see IAPMO IS-13, listed in Appendix I). (Renumber remaining sections) This is an editorial relocation of text to Chapter 3 where this section belongs based on piping subject to corrosion, erosion, or mechanical damage. Chapter 1 is for administration provisions that pertain to plumbing systems including the testing of such systems. Delete without substitution: (Item #2) Air Chamber- A pressure surge-absorbing device operating through the compressibility of air. Air chambers are no longer referenced in the 2006 Uniform Plumbing Code and should be deleted. Revise as follows: (Item #13)(Item #106) Section Water hammer arrester- A device to absorb hydraulic shock, either of the air chamber or mechanical device design. A device designed to provide protection against excessive surge pressure (hydraulic shock) in the building water supply system when water is abruptly stopped. Section Water hammer. All building water supply systems in which where quick-acting valves are installed shall be provided with devices water hammer arrester(s) to absorb the hammer caused by high pressures resulting from the quick closing of these valves. These pressure-absorbing devices Water hammer arrestors shall be approved mechanical devices in accordance with standard(s) listed in Chapter 14 and Water pressure-absorbing devices installed as close as possible to quick-acting valves. This definition should correlate with the provision of Section that prohibits the use of air chambers and references water hammer arrestors. This definition clarifies the definition of water hammer arresters and where such devices must be installed. Add new definition as follows: (Item #12) Section Quick-acting Valve. A valve that closes quickly or abruptly when manually released or electrically actuated. Section requires water supply systems in which quick-acting valve are installed shall be provided with devices to absorb the hammer caused by high pressure resulting from the quick closing of these valves. These valves must be approved mechanical devices however, we do not define what a quick acting valve is to determine whether or not they must be installed. In defining the valves, the user should know when they are required. Revise as follows: (Item #10) Public or Public Use- All buildings or structures Applies to plumbing fixtures that are not defined as private or private use. 1

4 This definition should correlate with private or private use indicating the use as it applies to plumbing fixtures. All instances in which public or public use are referenced applies to plumbing fixtures; therefore indicate such application in the definition. Revise as follows: (Item #15) Approvals. All pipe, pipe fittings, traps, fixtures, material, and devices used in a plumbing system shall be listed or labeled (third -party certified) by a listing agency (accredited conformity assessment body) and shall conform to approved applicable recognized standards referenced in this code, and shall be free from defects. Plastic pipe, fittings and components shall meet the requirements of NSF 14 as referenced in Table Unless otherwise provided for in this code, all materials, fixtures, or devices used or entering into the construction of plumbing systems, or parts thereof, shall be submitted to the Authority Having Jurisdiction for approval. Section does not specify that all plastic pipe, fittings and components shall meet the requirements of NSF 14 as referenced in Table We do require that all potable water pipe shall meet the requirements of NSF 61.It makes sense to recommend the addition of NSF 14 to bring together the performance requirements for plastics. The standard as referenced incorporates plastic pipe, plastic fittings and components. This would include all plastics that are permitted for water service and distribution piping, dwv piping, including components. This requirement would not include components with plastic parts. Delete without substitution: (Item #26) Section All trenches deeper than the footing of any building or structure and paralleling the same shall be at least fory-five (45) degrees (0.79 rad) therefrom, or as approved per Section of this code. Section and Section have identical text; therefore, this section should be deleted. Revise as follows: (Item #35) Section Required pressure tests exceeding ten (10) pounds (69 kpa) but less than or equal to one hundred (100) psi (689 kpa) shall be performed with gauges of one (1) psi (6.9 kpa) incrementation or less. Adding the words or equal to should be included because as written you are including exceeding 10 psi and less than 100 psi. The next section exceeds 100 psi therefore; 100 psi is not included in the text. Delete without substitution: (Item #61) Table 4-1 Minimum Plumbing Facilities 1 Type of Building Or Occupancy 2 Restaurants, pubs, and Offices 14, 15, A unisex facility (one water closet and one lavatory) may be used when the customer occupant load for the dining area, including outdoor seating area, is 10 or less and the total number of employees for the space is 4 or less. (renumber remaining footnotes) Table 4-1 footnote 16 indicates that a unisex facility (one water closet and one lavatory) may be used when the customer occupant load for the dining area, including outdoor seating area, is 10 or less and the total number of employees for the space is 4 or less. This footnote appears in the entry for Restaurants, pubs and lounges. Section indicates that an exception for separate facilities for occupancies serving 10 or fewer people, one toilet facility designed for both sexes may be used. This would include all occupancies including restaurants, pubs and lounges. A conflict exists between Section and Footnote 16 of Table 4-1. Recommend the deletion of footnote 16 and use Section the exception for separate facilities for all occupancies. Revise as follows: (Item #61) 2

5 Table 4-1 Minimum Plumbing Facilities 1 Each building shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Department Having Jurisdiction. For requirements for persons with disabilities, ICC/ANSI A117.1, Accessible and Usable Buildings and Facilities, may be used. The total occupant load shall be determined by minimum exiting requirements. The minimum number of fixtures shall be calculated at fifty (50) percent male and fifty (50) percent female based on the total occupant load. The occupant load and use of the building or space under consideration shall first be established using the Occupant Load Factor Table A. Once the occupant load and uses are determined, the requirements of Section and Table 4-1 shall be applied to determine the minimum number of plumbing fixtures required. This table applies to new buildings, additions to a building, changes of occupancy or type in an existing building resulting in increased occupant load (example: change an assembly room from fixed seating to open seating). Exception: New cafeterias for employee use are the only use exempted from this requirement. Delete without substitution: (Item #61) Table A. Occupant Load Factor: Occupancy*, ** Occupant Load Factor (square feet) (CBC 2001, Table A-29A) Group A 1. Auditoriums, convention halls, dance floors, 15 lodge rooms, stadiums, and casinos (where no fixed seating is provided) (use 1/2 one-half the number of fixed seating) 2. Conference rooms, dining rooms, drinking establishments, exhibit rooms, gymnasiums, 30 lounges, stages, and similar uses, including restaurants classified as Group B occupancies 3. Worship places; principal assembly area, educational and activity unit 30 (use 1/2 one-half the number of fixed seating) (where no fixed seating is provided) Group B Office or public buildings (area accessible to 200 the public) Group E Schools for daycare, elementary, secondary 50 Educational Facilities Other than Group E Colleges, universities, adult centers, etc. 50 Group F Workshops, foundries and similar establishments 2,000 Group H Hazardous materials fabrication and storage 2,000 Group I Hospital general use area, health care facilities 200 Group M 3

6 Retail or Wholesale stores 200 Group R Congregate residence, Group R Group S Warehouse 5,000 * Any uses not specifically listed shall be based on similar uses listed in this table. ** For building or space with mixed occupancies, use appropriate occupancy group for each area (for example, a school may have an A occupancy for the gymnasium, a B occupancy for the office, an E occupancy for the classrooms, etc.) Accessory areas may be excluded (for example: hallway, restroom, stair enclosure) Table 4-1 Minimum Plumbing Facilities- Additional language was added to the 2006 UPC under the heading for Table 4-1 Minimum Plumbing Facilities, which states in the third paragraph the occupant load and the use of the building or space under consideration shall be first established using the Occupant Load Factor Table A. This conflicts with the second paragraph that the total occupant load shall be determined by minimum exiting requirements. Recommend using the language that the Building Code determines the occupant load. Table A Occupant Load Factor references the occupant load factor based on the (CBC 2001, Table A-29A) and this conflicts with the intent that the code references the building code without specifying any particular building code. In addition, this table conflicts with the building code that uses occupant load factors as a means of exiting requirements. The building code determines occupant load factors on means of egress and exiting components. These factors are used to estimate the maximum number of occupants that are likely to use the building at the same time and expressed in floor area in square feet. Plumbing codes determine the minimum number of plumbing fixtures required based on the occupant load. Trying to mix and match egress requirements with minimum number of plumbing fixtures creates conflicts with the building code. Rather than using egress requirements or occupant load factors the minimum number of plumbing fixtures should be revised to take into account that a far greater number will be calculated using the egress components as the actual number of occupants. Many plumbing codes have been revised to take into account that exiting requirements produce a higher occupant load and revise plumbing fixtures accordingly or reduce the occupant load by 2/3 and apply the table. Revise as follows: (Item #42) Section Water closet bowls for public use shall be of the elongated type. In nurseries, schools, and other similar places where plumbing fixtures are provided for the use of children under less than six (6) years of age, water closets shall be of a size and height suitable for children s use. All water closets shall be equipped with seats as required below. Section Water Closet Seats. Section Water closet seats shall be of smooth, non-absorbent material. Seats for public use shall conform to the standard listed in Table Section All water closet seats, except those within dwelling units for public use, shall be of the elongated type and either of the open front type or have an automatic seat cover dispenser. Section Water closet seats shall be properly sized for the water closet bowl type. Section Seats for use in public buildings shall conform to the standard listed in Table These sections now correlate with the definition in Chapter 2 based on public and private use. In addition, it should be stated that if you require an elongated bowl in Section and Section requires the seat be properly sized for the type of bowl then correlate the two sections to state what the intent is. Section may be deleted as the same information is covered in previous sections and the term public building is not defined. In various sections throughout the code the terms dwelling units, multi-dwelling units, single-family dwelling units, single dwelling units, individual dwelling units and three or more dwelling units are used for specific applications. The code does not define any of these terms and the application on some of these sections applies to plumbing fixtures. In order to determine the application based on plumbing fixtures these terms should be reviewed for relevance and replaced with either public or private use where reference is made to plumbing fixtures. 4

7 The suggested revision is to correlate the requirements based on public and private use. The code defines private or public as it applies to plumbing fixtures for the types of fixtures required in those occupancies. Current text contains language that is not defined in the UPC such as dwelling unit and public building. Revise as follows: (Item #98) Section In multi- dwelling units buildings, one (1) or more a shutoff valves shall be provided in each dwelling individual unit so that the water supply to any plumbing fixture or group of fixtures in that dwelling unit can be to shut off the water supply to the individual unit without stopping the water supply to fixtures in other dwelling units. These valves shall be accessible in the dwelling unit that they control. Section A control valve shall be installed immediately ahead of each water supplied fixture or appliance. and immediately ahead of each slip joint or appliance supply. Parallel water distribution systems shall provide a control valve either immediately ahead of each fixture being supplied or installed at the manifold and shall be identified with the fixture being supplied. These sections were revised in order to clarify where a control valve must be installed, as it was always the intent to provide a control valve to each unit in a multiunit building and provide a shut off valve or control valve to each plumbing fixture or appliance. Revise as follows: (Item #233) Appendix L Table L-1 Water Supply Fixture Units (WSFU) for Private or Private Use Bathroom Groups 1, 2 Individual Dwelling Units Serving 3 or more Individual Private Dwelling Units or Private Use Bathroom Groups 5 Individual Private or Private Use Bathroom Groups Appendix L Table L-2 Drainage Fixture Unit Values (DFU) for Private or Private Use Bathroom Groups Individual Dwelling Units Serving 3 or more Individual Private Dwelling Units or Private Use Bathroom Groups Individual Private or Private Use Bathroom Groups L 4.0 Fixture Unit Values for Private or Private Use Bathroom Groups. In various sections throughout the code the terms dwelling units, multi-dwelling units, single-family dwelling units, single dwelling units, individual dwelling units and three or more dwelling units are used for specific applications. The code does not define any of these terms and the application on some of these sections applies to plumbing fixtures. In order to determine the application based on plumbing fixtures these terms should be reviewed for relevance and replaced with either public or private use where reference is made to plumbing fixtures. The suggested revision is to correlate the requirements based on public and private use. The code defines private or public as it applies to plumbing fixtures for the types of fixtures required in those occupancies. Current text contains language that is not defined in the UPC such as dwelling unit and public building. Revise as follows: (Item #27) Section Solvent Cement Plastic Pipe Joints. Plastic pipe and fittings designed to be joined by solvent cementing shall comply with appropriate applicable standards referenced in Table IAPMO Installation Standards. ABS pipe and fittings shall be cleaned and then joined with solvent cement(s). CPVC pipe and fittings shall be cleaned and then joined with listed primer(s) and solvent cement(s)

8 Exception: Listed solvent cements that do not require the use of primer shall be permitted for use with CPVC pipe and fittings, manufactured in accordance with ASTM D 2846, ½ inch through 2 inches in diameter. PVC pipe and fittings shall be cleaned and joined with primer(s) and solvent cement(s). A solvent cement transition joint between ABS and PVC building drain or and building sewer shall be made using a listed transition solvent cement. Section All piping penetrations of fire-resistance rated walls, partitions, floors, floor/ceiling assemblies, roof/ceiling assemblies or shaft enclosures shall be protected in accordance with the requirements of the Building Code, IAPMO installation Standards applicable standards referenced in Table 14-1and Chapter 15, Firestop Protection. Section ABS and PVC DWV piping installations shall be installed in accordance with IS 5, IS 9 that are IAPMO installation standards. applicable standards referenced in Table and Chapter 15 Firestop Protection. Except for individual single-family dwelling units, materials exposed within ducts of plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50, when tested in accordance with the Test for Surface- Burning Characteristics of the Building Materials. (See the Building Code standards based on ASTM E-84 and ANSI/UL 723). Section Elastomeric Gasketed and Rubber-Ring Joints. Elastomeric gasketed and rubber-ring joints shall comply with applicable standards referenced in Table 14-1 Installation standards listed in Appendix I. Section Hubless Cast-Iron Pipe Joints. Joints for hubless cast-iron soil pipe and fittings shall conform to appropriate applicable standards referenced in Table 14-1 installation standards listed in Appendix I and shall not be considered slip joints. Section indicates that All IAPMO Installation Standards are included in Appendix I for the users of this code. They are not considered as a part of this code unless formally adopted as such by the Authority Having Jurisdiction. Using the terms IAPMO Installation Standards as a requirement in the code does not correlate and contradicts Section Revise as follows: (Item #72) Section Running Water Required Hot and Cold Water Required. Section Except where not deemed necessary for safety or sanitation by the Authority Having Jurisdiction, each plumbing fixture shall be provided with an adequate supply of potable running water piped thereto in an approved manner, so arranged as to flush and keep it in a clean and sanitary condition without danger of backflow or cross-connection. In occupancies where plumbing fixtures are installed for private use, hot water shall be required for bathing, washing, laundry, cooking purposes, dishwashing or maintenance. In occupancies where plumbing fixtures are installed for public use, hot water shall be required for bathing and washing purposes. This requirement shall not supersede the requirements for individual temperature control limitations for public lavatories, bathtubs, whirlpool bathtubs and shower control valves. Water closets and urinals shall be flushed by means of an approved flush tank or flushometer valve. In jurisdictions that adopt Chapter 16, water closets, urinals, and trap primers in designated nonresidential buildings may be provided with reclaimed water as defined and regulated by Chapter 16 of this code. Exception: Listed fixtures that do not require water for their operation and are not connected to the water supply. The code does not require hot water in private and public occupancies for plumbing fixtures that require hot water. It should be stated where hot water is required and for what purposes. For example, in occupancies where plumbing fixtures are installed for private use, hot water should be required for bathing and washing, cooking purposes, laundry, dishwashing or maintenance. These fixtures in accordance with the manufacturer s instructions require hot water for its proper use and function. In addition, for sanitary purposes and for the comfort of the user hot water should be required. In occupancies where plumbing fixtures are installed for public use, hot water should be required for bathing and washing purposes. This requirement should not supersede the requirements for individual temperature control limitations for public lavatories, bathtubs, whirlpool bathtubs and shower control valves. There are climatic conditions and installations where jurisdictions should have the authority to amend this requirement. For example, in warmer climates where outside showers are installed, restrooms located in campsites or rest areas where heat is not available it should be up to the jurisdiction whether to require only cold water for these applications. Each jurisdiction will amend certain requirements of the code based on their specific location and conditions, however, the requirement for hot should be the minimum level for health, sanitation and comfort for the public. Revise as follows: (Item #77) 6

9 603.1 Approval of Devices or Assemblies. Before any device or assembly is installed for the prevention of backflow, it shall have first been approved by the Authority Having Jurisdiction. Devices or assemblies shall be tested for conformity with recognized standards or other standards acceptable to the Authority Having Jurisdiction that are consistent with the intent of this code. Backflow prevention devices and assemblies shall comply with Table 6-2, except for specific applications and provisions as stated in Sections through Section should include language for Table 6-2 that includes a charging statement for the inclusion of this table. Revise Table as follows: (Item #77) TABLE 6-2 Backflow Prevention Devices, Assemblies and Methods Device, Assembly or Method 1 Air gap Air gap fittings for use with plumbing fixtures, appliances and appurtenances Atmospherictype vacuum breaker (consists of a body, checking member and atmospheric opening) Antisiphon fill valve (ballcocks) for Applicable standard(s) ASME A ASME A ; IAPMO PS 23 or IAPMO PS 65 ASSE 1001 or CSA B ASSE 1002 or CSA B 125 Pollution (Low Hazard) Degree of Hazard 7 Contamination (High Hazard) Installation 2,3 Back- Siphonage Back- Pressure Back- Siphonage Back- Pressure x x The air gap is the unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood level rim of any tank, vat or fixture (see Table 6-3 and Section in this chapter). x x Air gap fitting is a device with an internal air gap and typical installation includes plumbing fixtures, appliances and appurtenances. The critical level shall not be installed below the flood level rim. x x Upright position. No valve downstream. Minimum of six (6) inches (152 mm) or listed distance above all downstream piping and flood-level rim of receptor. 4,5 Installation on gravity water closet flush tank and urinal tanks with

10 gravity water closet flush tanks and urinal tanks Vacuum breaker wall hydrants, hose bibbs, frost resistant, automatic draining type Backflow preventer for Carbonated Beverage Dispensers (two independent check valves with a vent to the atmosphere) Spill-Resistant Pressure-Type Backflow Preventer Prevention Assembly (single check valve with air inlet vent and means of field testing) Double Check Valve Backflow Preventer Prevention Assembly (two independent check valves and means of field testing) ASSE 1019 or CSA B the fill valve installed with the critical level not less than 1-inch above the opening of the overflow pipe. 4,5 Installation includes wall hydrants and hose bibbs. Such devices are not for use under continuous pressure conditions (means of shut off downstream of device is prohibited). 4,5 ASSE 1022 x Installation includes carbonated beverage machines or dispensers. These devices operate under intermittent or continuous pressure conditions. ASSE 1056 x x Upright position. Minimum of six (6) inches (152 mm) or listed distance above all downstream piping and flood-level rim of receptor. 5 ASSE 1015; AWWA C510; CSA B 64.5 or CSA B ASSE 1048 x x Horizontal unless otherwise listed. Requires one (1) foot clearance at bottom for maintenance. May need platform/ladder for test and repair. Does not discharge water. Horizontal unless otherwise listed. Requires one (1) foot clearance at bottom for maintenance. May need platform/ladder for test and repair. Does not discharge water. Installation includes a fire protection system and is designed to operate under continuous pressure conditions. 8

11 Pressure Vacuum Breaker Backflow Prevention Assembly (loaded air inlet valve, internally loaded check valve and means of field testing) Reduced Pressure Principle Backflow Preventer Prevention Assembly (two independently acting loaded check valves, a pressure relief valve and means of field testing) ASSE 1020 or CSA B ASSE 1047 ASSE 1013; AWWA C511; CSA B64.4 or CSA B x x Upright position. May have valves downstream. Minimum of twelve (12) inches (305 mm) above all downstream piping and flood-level rim of receptor. May discharge water. x x x x Horizontal unless otherwise listed. Requires one (1) foot (305 mm) minimum clearance at bottom for maintenance. May need platform/ladder for test and repair. May discharge water. Installation includes a fire protection system and is designed to operate under continuous pressure conditions. Horizontal unless otherwise listed. Requires one (1) foot (305 mm) minimum clearance at bottom for maintenance. May need platform/ladder for test and repair. May discharge water. 1. See description of devices and assemblies in this chapter. 2. Installation in pit or vault requires previous approval by the Authority Having Jurisdiction. 3. Refer to general and specific requirements for installation. 4. Not to be subjected to operating pressure for more than 12 hours in any 24-hour period. 5. For deck-mounted and equipment-mounted vacuum breaker, see Section This table was revised to correlate with Chapter 6 and the types of devices required. All devices listed in this table are already located in Chapter 6. Because of the misconception of devices required, the applicable standards were listed from Table 14-1 due to the health and safety hazard. This table provides the necessary information and is user friendly. Delete without substitution: (Item #79) Water Heater Connectors. Flexible metallic water hater connectors or reinforced flexible water heater connectors connecting water heaters to the piping system shall be in compliance with the appropriate standards listed in Table Section and Section have identical text; therefore, this section should be deleted. 9

12 Revise as follows: (Item #84) All pipe, tube, and fittings carrying water used in potable water systems intended to supply drinking water shall meet the requirements of NSF 61 as found in Table All materials used in the water supply system, except valves and similar devices, shall be of a like material, except where otherwise approved by the Authority Having Jurisdiction. Materials for building water piping and building supply piping shall be in accordance with one of the referenced standards in Table 6-4. and the standards in Table Delete Table 6-4 and replace as follows: (Item #84) Material Water Distribution Pipe and Fittings Building Supply Pipe and Fittings Table 6-4 Referenced Standard(s) Pipe Referenced Standard(s) Fittings Asbestos- Cement X ASTM C 296, AWWA C400 ASME B16.4, ASME B16.12 Brass X X ASTM B 43, ASTM B135 Copper X X ASTM B 42, ASTM B 75, ASTM B 88, ASTM B 251, ASTM B 302, ASTM B 447 ASME B 16.15, ASME B 16.18, ASME B 16.22, ASME B16.26 Cast-Iron X X AWWA C151 AWWA C 110, AWWA C153, ASME B16.4 CPVC X X ASTM D 2846, ASTM F 441 ASTM D 2846, ASTM F 437, ASTM F 439 Malleable Iron X X ASME B 16.3 Galvanized Steel X X ASTM A 53 PE X 1 ASTM D 2239, ASTM D 2737, AWWA C901, CSA B137.1 PE-AL-PE X X ASTM F 1282, CSA B137.9 PEX X X ASTM F876, ASTM F 877, CSA B137.5 PEX-AL-PEX X X ASTM F 1281, CSA B , ASTM F 2262 PVC X 1 ASTM D 1785, ASTM D 2241, AWWA C For Building Supply or cold-water applications. ASTM D 2609, CSA B137.1 ASTM F 1974, CSA B137.9 ASTM F 877, ASTM F 1807, ASTM F1960, ASTM F 1961, ASTM F 2080, ASTM F 2159, CSA B137.5 ASTM F 1974, ASTM F 2434, CSA B ASTM D2464, ASTM D 2466, ASTM D

13 This table was revised to correlate with Chapter 6 and the type of materials/standards referenced. All standards listed in this table are already located in Table Because of the misconception of the referenced standard required, the applicable standards were added to provide the necessary information and to assist the user. Revise as follows: (Item #111) Materials for drainage piping shall be in accordance with one of the referenced standards in Table 7-1. Drainage piping shall be cast iron, galvanized steel, galvanized wrought iron, lead, copper, brass, Stainless Steel 304 or 316L, Schedule 40 ABS DWV, Schedule 40 PVC DWV, extra-strength vitrified clay pipe, or other approved materials having a smooth and uniform bore, except that: Add new Table as follows: (Item #111) Table 7-1 Material ABS (Schedule 40) Underground Drain, Waste and Vent Pipe and Fittings Above ground Drain, Waste and Vent Pipe and Fittings Building Sewer Pipe and Fittings Referenced Standard(s) Pipe x x x ASTM D1527, ASTM D2661, ASTM D ASTM F628, ASTM F891, Asbestos-Cement x ASTM C428 1, ASTM C14 1 Brass x ASTM B43 Cast-Iron x x x ASTM A74, ASTM A888, CISPI 301 Copper (Type x x x ASTM B75, ASTM DWV) B251,ASTM B302, Galvanized Steel x ASTM A 53 Referenced Standard(s) Fittings ASTM D2661, ASTM D ASME B16.12, ASTM A74, ASTM A888, CISPI 301 ASME B16.23, ASME B16.29 Galvanized Malleable Iron PVC (Schedule 40, Type DWV) Stainless Steel 304 Stainless Steel 316L x ASME B 16.3 x x x ASTM D1785, ASTM D2665,, ASTM F794 1, ASTM F891 ASTM D2665, ASTM F794 1 ASTM F1866 x ASME A ASME A x x ASME A ASME A Vitrified Clay (Extra strength) 1. For Building Sewer applications. x ASTM C700 ASTM C700 Renumber existing Table 7-1 to Table 7-2(a) and place under Section , and renumber existing Table 7-2 to Table 7-2(b) and place under Chapter 7 Correlation in accordance with approved materials. This also correlates with Table 6-4 by listing the type of material approved for the installation. Revise as follows: (Item #140) 11

14 Section A trap arm may change direction without the use of a cleanout when such change of direction does not exceed ninety (90) degrees (1.6 rad). All horizontal changes in direction of trap arms shall comply with Section Exception: For trap arms three (3) inches (80 mm) in diameter and larger, the change of direction shall not exceed one hundred and thirty-five (135) degrees (2.36 rad) without the use of a cleanout. This section requires cleanout for trap arms and changes of direction in accordance with Section 706.3, which should be moved to Sanitary Drainage Chapter (both requirements are based on cleanout requirements in Chapter 7). Revise as follows: (Item #43) Securing Floor-Mounted, Back-Outlet Water Closet Bowls. Floor-mounted, back-outlet water closet bowls shall be set level with an angle of ninety (90) degrees (1.58 rad) between the floor and wall at the centerline of the fixture outlet. The floor and wall shall have a flat mounting surface for at least five (5) inches (127 mm) to the right and left of the fixture outlet centerline. The fixture shall be secured to the wall outlet flange or drainage connection and to the floor by corrosion-resistant screws or bolts. The closet flange shall be secured to a firm base. Where floor-mounted, back-outlet water closets are used, the soil pipe shall not be less than three (3) inches (80 mm) in diameter. Offset, eccentric, or reducing floor flanges shall not be used. (renumber remaining sections) Section Closet Rings (Closet Flanges). Section Closet rings (closet flanges) for water closets or similar fixtures shall be of an approved type and shall be bronze, copper, hard lead, cast iron, galvanized malleable iron, ABS, PVC, or other approved materials. Each such closet ring (closet flange) shall be approximately seven (7) inches (175 mm) in diameter and, when installed, shall, together with the soil pipe, present a one and one-half (1-1/2) inch (38 mm) wide flange or face to receive the fixture gasket or closet seal. Section Caulked-on closet rings (closet flanges) shall be not less than one-fourth (1/4) inch (6.4mm) thick and not less than two (2) inches (51mm) in overall depth. Section Closet rings (closet flanges) shall be burned or soldered to lead bends or stubs, shall be caulked to cast-iron soil pipe, shall be solvent cemented to ABS and PVC, and shall be screwed or fastened in an approved manner to other materials. Section All such closet rings (closet flanges) shall be adequately designed and secured to support fixtures connected thereto. Section Closet screws, bolts, washers, and similar fasteners shall be of brass, copper, or other listed, equally corrosion-resistant materials. All such screws and bolts shall be of adequate size and number to properly support the fixture installed. This is an editorial relocation of text from Chapter 7 to Chapter 4. Section has requirements for floor-mounted, backoutlet water closet bowls. Chapter 4 is for plumbing fixtures and fixture fittings. Section has requirements for closet flanges. Recommend correlation between Section and Sections to Section specifically for water closets and their installation. The user would be able to identify all the requirements based on the fixture referenced. Revise as follows: (Item #133) Vent pipe and fittings shall be in accordance with one of the referenced standards in Table 7-1. cast iron, galvanized steel, galvanized wrought iron, copper, brass, Schedule 40 ABS DWV, Schedule 40 PVC DWV, stainless steel 304 or 316L (stainless steel 304 pipe and fittings shall not be installed underground and shall be kept at least six inches (152 mm) aboveground), or other approved materials having a smooth and uniform bore except that: No galvanized malleable wrought-iron, or galvanized steel pipe or 304 stainless steel shall be used underground and shall be kept at least six (6) inches (152 mm) aboveground ABS and PVC DWV piping installations shall be installed in accordance with the applicable standards referenced in Table 14-1 IS 5, IS 9, and Chapter 15 Firestop Protection. Except for individual single-family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50 when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials (see the Building Code standards based on ASTM E-84 and ANSI/UL 723). 12

15 903.3 Vent fittings shall be cast iron, galvanized malleable iron, or galvanized steel, copper, brass, ABS, PVC, stainless steel 304 or 316L, or other approved materials., except that no galvanized malleable iron, or galvanized steel, or 304 stainless steel shall be used underground and shall be kept at least six (6) inches (152 mm) aboveground. Stainless steel 304 pipe and fittings shall not be installed underground and shall be kept at least 6 inches (152 mm) aboveground. These sections needed revision based on adding Table 7-1 for DWV pipe applications along with their respective standards. Section indicates that All IAPMO Installation Standards are included in Appendix I for the users of this code. They are not considered as a part of this code unless formally adopted as such by the Authority Having Jurisdiction. Using the terms IAPMO Installation Standards as a requirement in the code does not correlate and contradicts Section Revise as follows: (Item #135) Horizontal Bathroom Wet Venting for Bathroom (Groups). Section Bathroom (Group)- A room equipped with a shower or bathtub A group of fixtures consisting of a water closet, lavatory, bathtub or shower, urinal or bidet and emergency floor drain. This definition should correlate and define fixtures that are located in a bathroom. This is critical, as Section requires the user to identify what fixtures are included in a bathroom for horizontal wet venting. Without the correlation, the user cannot apply horizontal wet venting for a single or double bathroom group (see additional comments on Section 908.4). In addition, the term bathroom and bathroom groups are used throughout the code and appendices. For example, a bathroom or bathroom group may consist of a water closet, lavatory, bathtub or shower, including or excluding a urinal or bidet, an emergency floor drain or both. This would total a maximum of 5 fixtures for one bathroom group (1 water closet, 1 lavatory, 1 bathtub or shower, 1 urinal or bidet and 1 emergency floor drain). No mix or matching and only one of each type of fixture listed. For a double bathroom group a maximum of 10 fixtures [2 water closets, 2 lavatories, 2 bathtubs or showers (or 1 bathtub and 1 shower) 2 urinals or bidet (or 1 bidet and 1 urinal) and 2 emergency floor drains] Where permitted. Any combination of fixtures within one (1) or two (2) bathrooms located on the same floor level and for private use in dwellings and guest rooms shall be permitted to be vented by a wet vent. The wet vent shall be considered the vent for the fixtures and shall extend from the connection of the dry vent along the direction of the flow in the drainpipe to the most downstream fixture drain or trap arm connection to the horizontal branch drain. Each wet-vented fixture drain or trap arm shall connect independently to the wet-vented horizontal branch drain. Each individual fixture drain or trap arm shall connect horizontally to the wet-vented horizontal branch drain or shall be provided with a dry vent. The trap to vent distance shall be in accordance with Table 10-1.Only the fixtures within the bathroom(s) shall connect to the wet vented horizontal branch drain. Any additional fixtures shall discharge downstream of the wet vent system and be conventionally vented Vent Connection. The dry vent connection to the wet vent shall be an individual vent or common vent for the lavatory, bidet, shower or bathtub. Only one wet-vented fixture drain or trap arm shall discharge upstream of the dryvented fixture drain connection Size. The wet vent shall be sized based on the fixture unit discharge into the wet vent. The wet vent shall be not less than 2 inches (50 mm) in diameter for 4 dfu or less, and not less than 3 inches (80 mm) in diameter for more than 4 dfu 5 dfu or more. The dry vent shall be not less than 2 inches (50 mm) in diameter. This section permits wet venting bathrooms in dwellings and guestrooms; however, both terms are not defined in this code. The intent of this section is to provide for the wet venting of bathroom located for private use as described by the terms dwelling and guestrooms (see definition of private use). The fixtures located in these bathroom groups are intended for the use of an individual or family. Revise as follows: (Item #127) Indirect Waste Receptors All plumbing fixtures or other receptors receiving the discharge of indirect waste pipes shall be approved for the use proposed and shall be of such shape and capacity as to prevent splashing or flooding and shall be located where they are readily accessible for inspection and cleaning. No standpipe receptor for any clothes washer shall extend more than thirty (30) inches (762 mm), nor less than eighteen (18) inches (457 mm) above its trap. No trap for any clothes washer standpipe receptor shall 13

16 be installed below the floor, but shall be roughed in not less than six (6) inches (152 mm) and not more than eighteen (18) inches (457 mm) above the floor. No indirect waste receptor shall be installed in any toilet room, closet, cupboard, or storeroom, nor in any other portion of a building not in general use by the occupants thereof; except standpipes for clothes washers may be installed in toilet and bathroom areas when the clothes washer is installed in the same room The vertical distance between a fixture outlet and the trap weir shall be as short as practicable, but in no case shall the tailpiece from any fixture exceed twenty-four (24) inches (610 mm) in length. No standpipe receptor for any clothes washer shall extend more than thirty (30) inches (762 mm), nor less than eighteen (18) inches (457 mm) above its trap. No trap for any clothes washer standpipe receptor shall be installed below the floor, but shall be roughed in not less than 6 inches and not more than 18 inches above the floor. Correlate Section and Section as both have requirements for length of tailpiece and height of a clothes washer standpipe above a trap. Revise as follows: (Item #126) Building Sewer Test. Building sewers shall be tested by plugging the end of the building sewer at its points of connection with the public sewer or private sewage disposal system and completely filling the building sewer with water from the lowest to the highest point thereof, or by approved equivalent low-pressure air test. Plastic DWV piping systems shall not be tested by the air test method. The building sewer shall be watertight at all points. Section Storm Drainage Air Test and Section Building Sewer Test need to be correlated to either permit air test for both or prohibit as one permits air and the other does not. Revise as follows: (Item #226) Table A-2 Water Supply Fixture Units (WSFU) and Minimum Fixture Branch Pipe Sizes 3 Shower per head; Urinal 1.0 GPF Flushometer Valve; Urinal greater than 1.0 GPF Flushometer Valve. These entries were inadvertently left out of Table A-2 and should correlate with Table

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