SANITARY DRAINAGE

Philadelphia Code tit. 4, pt. P, ch. 7

in effect

Philadelphia Code Subcode P, § 701 GENERAL

SECTION 701 GENERAL * * * P-701.2 Connection to sewer required. Sanitary drainage piping from plumbing fixtures in buildings and sanitary drainage piping systems from premises shall be connected to a public sewer. Where a public sewer is not available, the sanitary drainage piping and systems shall be connected to a private sewage disposal system in compliance with state or local requirements. the regulations of the Department of Public Health. Where state or local requirements do not exist for private sewage disposal systems, the sanitary drainage piping and systems shall be connected to an approved private sewage disposal system that is in accordance with the International Private Sewage Disposal Code. Exception: Sanitary drainage piping and systems that convey only the discharge from bathtubs, showers, lavatories, clothes washers and laundry trays shall not be required to connect to a public sewer or to a private sewage disposal system provided that the piping or systems are connected to a system in accordance with Chapter 13 and 14. P-701.2.1 Private building sewer. Repairs to existing private building sewer pipe materials shall be in accordance with Table P-702.3. New or extended private building sewers may not cross any adjoining property lines except private sanitary sewer infrastructure designed in accordance with Section P-717. P-701.3 Separate sewer connection. A building having plumbing fixtures installed and intended for human habitation, occupancy or use on premises abutting on a street, alley or easement in which there is a public sewer shall have a separate connection with the sewer. Where located on the same lot, multiple buildings shall not be prohibited from connecting to a common building sewer that connects to the public sewer provided that the common building sewer is not placed underneath any building or structure. P-701.3.1 Non-residential. Non-residential buildings and other structures on the same deeded property and maintained under the same ownership shall be permitted to connect to the same building sewer. P-701.3.2 Residential. Where one building stands in the rear of another building on the same deeded property and maintained under the same ownership, and a separate building sewer cannot be provided for the rear building through an alley, yard or other open public space, the building sewer of the front building shall be permitted to serve the rear building, provided the building sewer of the front building is of adequate size and in suitable condition to serve both front and rear buildings. P-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. P-701.5 Damage to drainage system or public sewer. Waste detrimental to the public sewer system or 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 and the Industrial Waste Unit of the Philadelphia Water Department. * * * P-701.8 Abandonment of building sewer and lateral. Abandoned laterals shall have the house trap removed, and the pipe shall be hermetically sealed by a cap or plug encased in concrete at the curb line. Laterals 8 inches (203 mm) and greater shall be sealed by a cap or plug encased in concrete at the point of connection to the public sewer. Abandoned drainage piping within the building shall be hermetically sealed by a cap or plug. P-701.8.1 Permit. A plumbing permit is required for abandonment of building sewers and laterals and work shall be performed by a Registered Master Plumber. P-701.9 Property Lines. Drainage piping may not cross adjoining property lines except private sewer infrastructure designed in accordance with Section P-717.

Philadelphia Code Subcode P, § 702 MATERIALS

SECTION 702 MATERIALS P-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. Any above ground soil, waste and vent piping serving or located within occupancies other than one- and two-family dwellings and apartments shall be metallic piping in accordance with this Section. TABLE P-702.1 ABOVE-GROUND DRAINAGE AND VENT PIPE MATERIAL | STANDARD * * * Copper or copper-alloy tubing a (Type K, L, M or DWV) | ASTM B75; ASTM B88; ASTM B251; ASTM B306 * * * a. Type K copper tubing must be used for the drainage of all urinals. P-702.1.1 High-rise material. Metallic piping shall be installed throughout buildings with an occupied floor located more than 75 feet (22,860 mm) above the lowest level of fire department vehicle access. P-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 P-702.2. Any underground building sanitary drainage and vent piping serving or located within occupancies other than one- and two-family dwellings and apartments shall be metallic piping in accordance with this section. P-702.2.1 High-rise material. Metallic piping shall be installed for all underground building sanitary drainage and vent piping for buildings with an occupied floor located more than 75 feet (22,860 mm) above the lowest level of fire department vehicle access. TABLE P-702.2 UNDERGROUND BUILDING DRAINAGE AND VENT PIPE MATERIAL | STANDARD Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall | ASTM D2661; ASTM F628; ASTM F1488; CSA B181.1 Cast-iron pipe | ASTM A74; ASTM A888; CISPI 301 * * * Ductile iron pipe class 56 | AWWA C151/A21.51; AWWA C115/A21.15 * * * Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall | ASTM D2665; ASTM F891; ASTM F1488; CSA B181.2 Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a solid, cellular core or composite wall | ASTM D2949, ASTM F1488 * * * P-702.3 Building sewer pipe. Building sewer pipe shall conform to one of the standards listed in Table P-702.3. Any building sewer pipe serving or located within occupancies other than one- and two-family dwellings and apartments shall be metallic piping in accordance with this section. TABLE P-702.3 BUILDING SEWER PIPE MATERIAL | STANDARD Acrylonitrile butadiene styrene (ABS) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140) with a solid, cellular core or composite wall | ASTM D2661; ASTM F628; ASTM F1488; CSA B181.1 Acrylonitrile butadiene styrene (ABS) plastic pipe in sewer and drain diameters, including SDR 42 (PS 20), PS 35, SDR 35 (PS 45), PS 50, PS 100, PS 140, SDR 23.5 (PS 150) and PS 200; with a solid, cellular core or composite wall | ASTM F1488; ASTM D2751 Cast-iron pipe | ASTM A74; ASTM A888; CISPI 301 * * * Ductile iron pipe class 56 | AWWA C151/A21.51; AWWA C115/A21.15 * * * Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall | ASTM D2665; ASTM F891; ASTM F1488 Polyvinyl chloride (PVC) plastic pipe in sewer and drain diameters, including PS 25, SDR 41 (PS 28), PS 35, SDR 35 (PS 46), PS 50, PS 100, SDR 26 (PS 115), PS 140 and PS 200; with a solid, cellular core or composite wall | ASTM F891; ASTM F1488; ASTM D3034; CSA B182.2; CSA B182.4 Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a solid, cellular core or composite wall | ASTM D2949; ASTM F1488 * * * P-702.3.1 High-rise material. Metallic piping shall be installed for all building sewer pipe for buildings with an occupied floor located more than 75 feet (22,860 mm) above the lowest level of fire department vehicle access. P-702.3.2 Lateral. Lateral materials and installation shall be regulated by the Philadelphia Water Department. * * * TABLE P-702.4 PIPE FITTINGS MATERIAL | STANDARD * * * Ductile iron pipe class 56 | AWWA C151/A21.51; AWWA C115/A21.15 * * * P-702.6 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. Separate drainage systems for chemical wastes and vent pipes shall be of an approved material that is resistant to corrosion and degradation for the concentrations of chemicals involved. The restrictions on non-metallic pipe shall not apply to this section. P-702.7 Reserved. Lead bends and traps. The wall thickness of lead bends and traps shall be not less than 1/8 inch (3.2 mm).

Philadelphia Code Subcode P, § 703 BUILDING SEWER

SECTION 703 BUILDING SEWER P-703.1 Building sewer pipe near the water service. The proximity of a sewer to a water service distribution shall comply with Section P-603.2. P-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, PVC plastic pipe or polypropylene plastic pipe or stainless steel drainage systems, Type 304 and 316L as indicated in Table P-702.3. When drainage is installed in filled or unstable ground, it shall be of cast iron or hard temper copper tube of a weight not less than type “L” or stainless steel drainage systems, Type 304 and 316L. Pipe shall be supported on concrete piers with spacing consistent with Table 308.5, or a constant bed of concrete or clevis hangers attached to reinforcing rods in the concrete floor above the piping. * * * 703.4 Existing building sewers and building drains. Where the entire sanitary drainage system of an existing building is replaced, existing building drains under concrete slabs and existing building sewers that will serve the new system shall be internally examined to verify that the piping is sloping in the correct direction, is not broken, is not obstructed and is sized for the drainage load of the new plumbing drainage system to be installed. P-703.4.1 Connections to existing private building sewers. Where connections are made to existing private building sewers, all provisions of 703.4 shall apply including confirmation and acceptance of condition and sizing by a registered design professional. P-703.4.1.1 Extension of existing private building sewers. Extension of existing private building sewers is prohibited. * * * P-703.6 Combined sanitary and storm public sewer. Where the public sewer is a combined system for both sanitary and storm water, the sanitary sewer shall be connected independently to the public sewer lateral, unless otherwise approved by the Philadelphia Water Department. Exception: The repair or replacement of an existing combined building sewer as of the initial adoption date of this code. The size of such replacements shall comply with section 1109.2. P-703.6.1 Separation. Storm water shall not be drained into sewers that are intended only for sanitary sewage. Sanitary waste shall not be drained into sewers that are intended only for storm water. * * *

Philadelphia Code Subcode P, § 704 DRAINAGE PIPING INSTALLATION

SECTION 704 DRAINAGE PIPING INSTALLATION P-704.1 Slope of horizontal drainage piping. Horizontal drainage piping shall be installed in uniform alignment at uniform slopes. The slope of a horizontal drainage pipe shall be not less than that indicated in Table P-704.1 except that where the drainage piping is upstream of a grease interceptor, the slope of the piping shall be not less than 1/4 inch per foot (2-percent slope). Building sewer force mains are not permitted. TABLE P-704.1 SLOPE OF HORIZONTAL DRAINAGE PIPE SIZE (inches) | MINIMUM SLOPE (inch per foot) 2-1/2 3 or less | 1/4 a 3 4 to 6 | 1/8 a 8 or larger | 1/16 a * * * P-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. * * *

Philadelphia Code Subcode P, § 705 JOINTS

SECTION 705 JOINTS * * * 705.2 ABS plastic. Joints between ABS plastic pipe or fittings shall comply with Sections 705.2.1 through 705.2.3. P-705.2.1 Reserved. Mechanical joints. Mechanical joints on drainage pipes shall be made with an elastomeric seal conforming to ASTM C1173, ASTM D3212 or CSA B602. Mechanical joints shall be installed only in underground systems unless otherwise approved. Joints shall be installed in accordance with the manufacturer’s instructions. * * * P-705.2.4 Reserved. Push-fit joints. Push-fit DWV fittings shall be listed and labeled to ASME A112.4.4 and shall be installed in accordance with the manufacturer’s instructions. 705.3 Cast iron. Joints between cast-iron pipe or fittings shall comply with Sections 705.3.1 through 705.3.3. * * * P-705.3.3 Mechanical joint coupling. Mechanical joint couplings for hubless pipe and fittings shall consist of an elastomeric sealing sleeve and a metallic shield that comply with CISPI 310, ASTM C1277 or ASTM C1540. The elastomeric sealing sleeve shall conform to ASTM C564 or CSA B602 and shall be provided with a center stop. Mechanical joint couplings shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. P-705.3.4 Repair or connection of the building (house) drain or building sewer. A cast-iron double hub fitting and fission joint when using lead and oakum shall be acceptable for repair or connection of a building (house) drain or building sewer. On one side of a repair or connection to a building (house) drain or building sewer, either a cast-iron hubless coupling consisting of a cast-iron housing complying with ASTM A1056 and C564, stainless steel nuts and bolts that comply with ANSI B18.2.1 and ANSI B18.2.2 and a neoprene gasket that comply with ASTM C564 or an adjustable repair coupling for hubless pipe and fittings consisting of an elastomeric sealing sleeve and a metallic housing that comply with CISPSI 310 and ASTM A240, the elastomeric sealing sleeve shall conform to ASTM C425 or C1173 and shall be provided with a center stop, shall be acceptable. Note: An adjustable repair coupling shall be permitted on each side of the repair or connection. The use of two adjustable repair couplings shall require a concrete encasement of the coupling on both sides of the repair or connection. P-705.3.5 Replacement of existing building (house) traps. For replacement of an existing building (house) trap an adjustable repair coupling for hubless pipe and fitting consisting of an elastomeric sealing sleeve and a metallic housing that comply with CISPI 310 and ASTM A240, the elastomeric sealing sleeve shall conform to ASTM C425 or C1173 and shall be provided with a center stop, shall be permitted on one side of the trap. Note: Under severe conditions, an adjustable repair coupling shall be permitted on each side of the trap. The use of two adjustable repair couplings shall require a concrete encasement of the coupling on the street side of the trap. * * * 705.5 Copper Pipe. Joints between copper or copper-alloy pipe or fittings shall comply with Sections 705.5.1 through 705.5.5. * * * P-705.5.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. P-705.5.3 Solder joints. Solder joints shall be made in accordance with the methods of ASTM B828. Cut tube ends shall be reamed to the full inside diameter of the tube end. Joint surfaces shall be cleaned. A flux conforming to ASTM B813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B32. All solder joints shall be made with lead-free solder and flux. “Lead free” shall mean a chemical composition equal to or less than 0.2-percent lead. 705.6 Copper Tubing. Joints between copper or copper-alloy tubing or fittings shall comply with Sections 705.6.1 through 705.6.3. * * * P-705.6.2 Mechanical joints. Mechanical joints shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. P-705.6.3 Solder joints. Solder joints shall be made in accordance with the methods of ASTM B828. Cut tube ends shall be reamed to the full inside diameter of the tube end. Joint surfaces shall be cleaned. A flux conforming to ASTM B813 shall be applied. The joint shall be soldered with a solder conforming to ASTM B32. All solder joints shall be made with lead-free solder and flux. “Lead free” shall mean a chemical composition equal to or less than 0.2-percent lead. * * * 705.8 Steel. Joints between galvanized steel pipe or fittings shall comply with Sections 705.8.1 and 705.8.2. * * * P-705.8.2 Mechanical joints. Joints shall be made with an approved elastomeric seal. Mechanical joints shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. P-705.9 Lead. Joints between lead pipe or fittings shall be prohibited. comply with Sections 705.9.1 and 705.9.2. 705.9.1. Burned. Burned joints shall be uniformly fused together into one continuous piece. The thickness of the joint shall be not less than the thickness of the lead being joined. The filler metal shall be of the same material as the pipe. 705.9.2 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 not less than 3/8 inch (9.5 mm) thick at the thickest point. 705.10 PVC Plastic. P-705.10.1 Mechanical joints. Prohibited. Mechanical joints on drainage pipe shall be made with an elastomeric seal conforming to ASTM C1173, ASTM D3212 or CSA B602. Mechanical joints shall not be installed in above-ground systems, unless otherwise approved. Joints shall be installed in accordance with the manufacturer’s instructions. P-705.10.2 Solvent cementing. Joint surfaces shall be clean and free from moisture. A purple primer that conforms to ASTM F656 shall be applied. Solvent cement not purple in color and conforming to ASTM D2564, CSA B137.3, CSA B181.2 or 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 D2855. Solvent cement joints shall be permitted above or below ground. Exception: A primer is not required where both of the following conditions apply: 1. The solvent cement used is third-party certified as conforming to ASTM D2564. 2. The solvent cement is used only for joining PVC drain, waste and vent pipe and fittings in nonpressure applications in sizes up to and including 4 inches (102 mm) in diameter. * * * P-705.10.4 Reserved. Push-fit joints. Push-fit joints shall conform to ASME A112.4.4 and shall be installed in accordance with the manufacturer’s instructions. * * * 705.12 Polyethylene plastic pipe. * * * P-705.12.2 Mechanical joints. Mechanical joints in drainage piping shall be made with an elastomeric seal conforming to ASTM C1173, ASTM D3212 or CSA B602. Mechanical joints shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. 705.13 Polyolefin plastic. * * * P-705.13.2 Mechanical and compression sleeve joints. Mechanical and compression sleeve joints shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. * * * 705.14 Polyvinylidene fluoride plastic. * * * P-705.14.2 Mechanical and compression sleeve joints. Mechanical and compression sleeve joints shall be installed in accordance with the manufacturer’s instructions and limited to above ground installations only. Unshielded mechanical couplings are not permitted. P-705.15 Polypropylene plastic. The joint between polypropylene plastic pipe and fittings shall incorporate an elastomeric seal. The joint shall conform to ASTM D3212. The joint shall conform to ASTM D3212. Mechanical joints shall not be installed below ground in accordance with product specifications. P-705.16 Joints between different materials. Joints between different piping materials shall be made with a mechanical joint of the compression or mechanical-sealing type conforming to ASTM C1173, ASTM C1460 or ASTM C1461 and limited to above ground installations only. Connectors and adapters shall be approved for the application and such joints shall have an elastomeric seal conforming to ASTM C425, ASTM C443, ASTM C564, ASTM C1440, ASTM F477, CSA A257.3M or CSA B602, or as required in Sections 705.16.1 through 705.16.7. Joints between glass pipe and other types of materials shall be made with adapters having a TFE seal. Joints shall be installed in accordance with the manufacturer’s instructions. * * * P-705.16.5 Lead pipe to other piping material. Joints between lead pipe and other piping material shall be prohibited. made by a wiped joint to a caulking ferrule, soldering nipple or bushing or shall be made with an approved adapter fitting. * * *

Philadelphia Code Subcode P, § 706 CONNECTIONS BETWEEN DRAINAGE PIPING AND FITTINGS

SECTION 706 CONNECTIONS BETWEEN DRAINAGE PIPING AND FITTINGS * * * TABLE P-706.3 FITTINGS FOR CHANGE IN DIRECTION TYPE OF FITTING PATTERN | CHANGE IN DIRECTION Horizontal to vertical | Vertical to horizontal | Horizontal to horizontal * * * Quarter bend | X | X a, d | X a * * * d. A quarter bend shall be permitted in lieu of an ideal bend, on a dry vent above the highest fixture and in a storm system. * * *

Philadelphia Code Subcode P, § 708 CLEANOUTS

SECTION 708 CLEANOUTS P-708.1 Cleanouts required. Cleanouts shall be provided for drainage piping in accordance with Sections 708.1.1 through 708.1.12. A cleanout shall be provided at or near the base of each vertical waste or soil stack. P-708.1.1 Horizontal drains and building drains. Horizontal drainage pipes and building drains in buildings shall have cleanouts located at intervals of not more than 100 50 feet (30,480 15,240 mm) for lines four inch in diameter or less. Building Horizontal drainage pipes and building drains shall have cleanouts located at intervals of not more than 100 feet (30,480 mm) for lines five inch in diameter and above, except where manholes are used instead of cleanouts, the manholes shall be located at intervals of not more than 400 200 feet (122 61 m). The interval length shall be measured from the cleanout or manhole opening, along the developed length of the piping to the next drainage fitting providing access for cleaning, the end of the horizontal drain or the end of the building drain. Exception: Horizontal fixture drain piping serving a nonremovable trap shall not be required to have a cleanout for the section of piping between the trap and the vent connection for such trap. * * * 708.1.10 Cleanout access. Required cleanouts shall not be installed in concealed locations. For the purposes of this section, concealed locations include, but are not limited to, the inside of plenums, within walls, within floor/ceiling assemblies, below grade and in crawl spaces where the height from the crawl space floor to the nearest obstruction along the path from the crawl space opening to the clean-out location is less than 24 inches (610 mm). Cleanouts with openings at a finished wall shall have the face of the opening located within 1-1/2 inches (38 mm) of the finished wall surface. Cleanouts located below grade shall be extended to grade level so that the top of the cleanout plug is at or above grade. A cleanout installed in a floor or walkway that will not have a trim cover installed shall have a countersunk plug installed so the top surface of the plug is flush with the finished surface of the floor or walk-way. * * * P-708.1.10.2 Floor cleanout assemblies. Where it is necessary to protect a cleanout plug from the loads of vehicular traffic, cleanout assemblies in accordance with ASME A112.36.2M shall be installed. Note: An adjustable repair coupling shall be permitted to connect underground piping to a cleanout. * * *

Philadelphia Code Subcode P, § 709 FIXTURE UNITS

SECTION 709 FIXTURE UNITS * * * TABLE P-709.1 DRAINAGE FIXTURE UNITS FOR FIXTURES AND GROUPS FIXTURE TYPE | DRAINAGE FIXTURE UNIT VALUE AS LOAD FACTORS | MINIMUM SIZE OF TRAP (inches) * * * Emergency floor drain | 0 | 2 3 Floor drains b | 2 3 | 2 3 * * * * * *

Philadelphia Code Subcode P, § 710 DRAINAGE SYSTEM SIZING

SECTION 710 DRAINAGE SYSTEM SIZING P-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 P-710.1(1). The maximum number of drainage fixture units connected to a given size of horizontal branch or vertical soil or waste stack shall be determined using Table 710.1(2). TABLE P-710.1(1) BUILDING DRAINS AND SEWERS Diameter of Pipe (inches) | Maximum Number of Drainage Fixture Units Connected to Any Portion of the Building Drain or the Building Sewer, Including Branches of the Building Drain Slope per Foot 1/16-inch | 1/8-inch | 1/4-inch | 1/2-inch * * * 3 | - | 36 - | 42 | 50 * * * * * *

Philadelphia Code Subcode P, § 712 SUMPS AND EJECTORS

SECTION 712 SUMPS AND EJECTORS * * * 712.3 Sump design. The sump pump, pit and discharge piping shall conform to the requirements of Sections 712.3.1 through 712.3.5. * * * P-712.3.2 Sump pit. The sump pit shall be not less than 18 inches (457 mm) in diameter and not less than 24 inches (610 mm) in depth, unless otherwise approved. The pit shall be provided with access and shall be located such that all drainage flows into the pit by gravity. 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 gastight removable cover that is installed not more than 2 inches (51 mm) below grade or floor level. The cover shall be adequate to support anticipated loads in the area of use. The sump pit shall be vented in accordance with Chapter 9. Exception: An elevator sump pit shall not require a sealed cover. 712.3.3 Discharge pipe and fittings. Discharge pipe and fittings serving sump pump and ejectors shall be constructed of materials in accordance with Sections P-712.3.3.1 and 712.3.3.2. P-712.3.3.1 Materials. Pipe and fitting materials shall be constructed of copper or copper-alloy, CPVC, ductile iron, PE, or PVC., solid wall, galvanized steel pipe or stainless steel pipe for residential applications limited to one- and two-family dwellings. Discharge piping serving or located within occupancies other than one- and two-family dwellings and apartments shall be metallic piping in accordance with this Section. * * * P-712.4 Sewage pumps and sewage ejectors. A duplex sewage pump or sewage ejector shall automatically discharge the contents of the sump to the building drainage system. A simplex pump or sewage ejector shall be permitted for one- and two-family dwellings and where serving a single plumbing fixture waste, a single waste receptor or both in all other occupancies. P-712.4.1 Macerating toilet systems. Macerating toilet systems shall comply with ASME A112.3.4/CSA B45.9 and shall be installed in accordance with the manufacturer’s instructions, and shall be limited to use in one- and two-family residential dwellings only. P-712.4.2 Capacity. A sewage pump or sewage ejector shall have the capacity and head for the application requirements. 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 1/2 inch (13 mm). The capacity of a pump or ejector based on the diameter of the discharge pipe shall be not less than that indicated in Table 712.4.2. Exceptions: 1. Grinder pumps or grinder ejectors that receive the discharge of water closets shall have a discharge opening of not less than 1-1/4 inches (32 mm). 2. Macerating toilet assemblies that serve single water closets shall have a discharge opening of not less than 3/4 inch (19.1 mm) and shall be limited to use in one- and two-family residential dwellings only. * * *

Philadelphia Code Subcode P, § 714 BACKWATER VALVES

SECTION 714 BACKWATER VALVES P-714.1 Sewage backflow. Where plumbing fixtures are installed on a floor with a finished floor elevation below the fresh air inlet termination elevation of the manhole cover of the next upstream manhole in the public sewer, such fixtures shall be protected by a backwater valve installed in the building drain, or horizontal branch serving such fixtures. Plumbing fixtures installed on a floor with a finished floor elevation above the elevation of the fresh air inlet termination manhole cover of the next upstream manhole in the public sewer shall not discharge through a backwater valve. Exception: In existing buildings, fixtures above the elevation of the fresh air inlet termination manhole cover of the next upstream manhole in the public sewer shall not be prohibited from discharging through a backwater valve. Note: For building sub-drains that service fixtures below the fresh air inlet termination that discharges into the building gravity drainage system by automatic pumping equipment, the required check valve installed with the pump shall provide sufficient means of protection against backflow. * * *

Philadelphia Code Subcode P, § 715 VACUUM DRAINAGE SYSTEMS

SECTION 715 VACUUM DRAINAGE SYSTEMS * * * 715.2 System design. Vacuum drainage systems shall be designed in accordance with the vacuum drainage system manufacturer's instructions. The system layout, including piping layout, tank assemblies, vacuum pump assembly and other components necessary for proper function of the system shall be in accordance with the manufacturer’s instructions. Plans, specifications and other data for such systems shall be submitted to the code official for review and approval prior to installation. * * * P-715.2.5 Materials. Vacuum drainage pipe, fitting and valve materials shall be in accordance with the vacuum drainage system manufacturer’s instructions and the requirements of this chapter and supersede the requirements contained in Section 702. * * *

Philadelphia Code Subcode P, § 716 REPLACEMENT OF UNDERGROUND BUILDING SEWERS AND BUILDING DRAINS BY PIPE-BURSTING METHODS

SECTION 716 REPLACEMENT OF UNDERGROUND BUILDING SEWERS AND BUILDING DRAINS BY PIPE-BURSTING METHODS P-716.1 General. This section shall govern the replacement of existing building sewer and building (house) drainage piping by pipe-bursting methods and shall not extend past the curb line. P-716.2 Applicability. The replacement of existing building sewers and building (house) drainage piping by pipe-bursting methods shall be limited to gravity drainage piping of sizes 6 inches (152 mm) in diameter and larger smaller. The replacement piping shall be of the same nominal size as the existing piping. A plumbing permit shall be issued by the Department of Licenses and Inspections for this work and the work shall be properly inspected. Proof satisfactorily to the Department shall be provided that the PA One Call and any other applicable agency has been properly notified prior to issuing a permit for this work. P-716.3 Pre-installation inspection. The existing piping sections to be replaced shall be inspected internally by a recorded video camera survey and the existing pipe to be replaced shall be introduced with water to identify any imperfections in alignment. The survey shall include notations of the position of cleanouts and the depth of connections to the existing piping. P-716.4 Pipe. The replacement pipe shall be made of high-density polyethylene (HDPE) and shall have a standard dimension ratio (SDR) of 17. The pipe shall be in compliance with ASTM F714 and shall conform to the manufacturer’s specifications and guidelines for installation and use. P-716.5 Pipe fittings. Pipe fittings to be connected to the replacement pipe shall be made of high-density polyethylene (HDPE) and shall be in compliance with ASTM D2683 and shall conform to the manufacturer’s specifications and guidelines for installation and use. P-716.6 Cleanouts. Where the existing building sewer or building (house) drain did not have cleanouts meeting the requirements of this code, cleanout fittings shall be installed as required by this code. P-716.7 Post-installation inspection. The completed replacement piping section shall be inspected internally by a recorded video camera survey and the existing pipe to be replaced shall be introduced with water to identify any imperfections in alignment that would not allow for approval of the installation. The video survey shall be reviewed and approved or disapproved by the code official prior to pressure testing of the replacement piping system. * * *

Philadelphia Code § P-717 PRIVATE SANITARY SEWER INFRASTRUCTURE

SECTION P-717 PRIVATE SANITARY SEWER INFRASTRUCTURE P-717.1 General. The provisions of this Section shall govern the materials, design, and construction of Private Sanitary Sewer Infrastructure. P-717.1.1 Definitions. The following definitions shall apply to Private Sanitary Sewer Infrastructure. PRIVATE SEWER INFRASTRUCTURE. The sewer pipe that is constructed on private property between the Lateral and the Building Sewer owned and maintained by the unit owner’s association to serve some or all units within a Condominium or Planned Community. Sanitary. Private sewer infrastructure that conveys sewage only. Storm. Private sewer infrastructure that conveys storm water or other drainage, but not sewage. P-717.2 Materials. Private Sanitary Sewer Infrastructure shall conform to all of the requirements listed in Section 702 of this code. P-717.3 Slope of private sanitary sewer infrastructure. Private sanitary sewer infrastructure shall be installed in uniform alignment at uniform slopes. The slope of private sanitary sewer infrastructure shall be in accordance with Section 704 of this code. P-717.4 Connections. The building sewers for each house or structure shall be connected to the Private Sanitary Sewer Infrastructure separately. Each connection shall be made with a wye branch and be fitted with a Building Trap and Fresh Air Inlet in line with the connection point in accordance with the Section 1002.6 of this code. P-717.5 Depth of private sanitary sewer infrastructure. Private Sanitary Sewer Infrastructure shall be installed not less than 36 inches (914 mm) measured from the top of pipe. P-717.6 Access for repairs. Separation of Private Water, Sanitary Sewer, and Storm Sewer Infrastructure placed in the same alignment and at a depth not exceeding 5 feet shall comply with Section 603.2 of this code. Infrastructure placed at depths greater than 5 feet shall be horizontally separated at a distance that allows for the approved sheeting and shoring and not less than 2 feet. P-717.7 Protection of structures. Private sanitary sewer infrastructure piping installed parallel to footings and walls shall not extend into the bearing plane of a footing or wall in accordance with Section 307.5 of this code. Private sanitary sewer infrastructure piping shall not be installed within 5 feet (1524 mm) of any adjoining property line. Private sanitary sewer infrastructure Pipe shall not be installed within 3 feet (914 mm) of any parallel building foundation. P-717.8 Cleanouts required. Cleanouts shall be provided for Private Sanitary Sewer Infrastructure in accordance with the provisions of this code for sanitary drainage pipe in Section 708.1. All building sewers connected to Private Sanitary Sewer Infrastructure shall be fitted with an approved Building Trap and Fresh Air Inlet. The sewer will not require a trap and Fresh Air Inlet at the connection to the lateral but will require a manhole or cleanout at the property line before entering the public right-of-way. P-717.9 Manholes. Manholes will be required for Private Sanitary Sewer Infrastructure 8 inches in diameter and greater at changes in direction, grade, and size. All manholes shall have inverts built with channels extending up to the pipe crown to ensure uniform flow in accordance with Section 708.1 of this code. P-717.10 Sewage Backflow. Backwater valves shall be installed in accordance with Section 714.1 of this code. P-717.11 Easement required. Private Sanitary Sewer Infrastructure shall require an easement with a minimum width of 12' and must provide adequate space to replace/repair the private services. Minimum vertical drive height clearance of 13'-6" or 2x pipe depth to pipe bottom, whichever is greater, shall be provided.

Philadelphia Code § P-718 RELINING BUILDING SEWERS REHABILITATION OF BUILDING SEWERS AND BUILDING DRAINS

SECTION P-718 RELINING BUILDING SEWERS REHABILITATION OF BUILDING SEWERS AND BUILDING DRAINS P-718.1 717.1 General. This section shall govern the relining of existing building sewers and building drainage piping for one- and two-family dwellings. Relining of building sewers for commercial occupancies is prohibited. P-718.2 717.2 Applicability. The relining of existing building sewers and building drainage piping shall be limited to gravity drainage piping 4 inches (102 mm) in diameter and larger. The relined piping shall be of the same nominal size as the existing piping. P-718.3 717.3 Preinstallation requirements. Prior to commencement of the relining installation, the existing piping sections to be relined shall be descaled and cleaned. After the cleaning process has occurred and water has been flushed through the system, the piping shall be inspected internally by a recorded video camera survey. P-718.3.1 717.3.1 Preinstallation recorded video camera survey. The video survey shall include verification of the project address location. The video shall include notations of the cleanout and fitting locations, and the approximate depth of the existing piping. The video shall also include notations of the length of piping at intervals not greater than 25 feet (7620 mm). P-718.4 717.4 Permitting. A plumbing permit shall be issued by the Department of Licenses and Inspections for this work and the work shall be properly inspected. Proof satisfactory to the Department shall be provided showing that the PA One Call and any other applicable agency has been properly notified prior to issuing a permit for this work. Prior to permit issuance, the code official shall review and evaluate the preinstallation recorded video camera survey to determine if the piping system is capable to be of being relined in accordance with the proposed lining system manufacturer’s installation requirements and applicable referenced standards. P-718.5 717.5 Prohibited applications. Where review of the preinstallation recorded video camera survey reveals that piping systems are not installed correctly or defects exist, relining shall not be permitted. The defective portions of piping shall be exposed and repaired with pipe and fittings in accordance with this code. Defects shall include, but are not limited to, backgrade or insufficient slope, complete pipe wall deterioration or complete separations such as from tree root invasion or improper support. P-718.6 717.6 Relining materials. The relining materials shall be manufactured in compliance with applicable standards and certified as required in Section 303. Fold-and-form pipe reline materials shall be manufactured in compliance with ASTM F1504 or ASTM F1871. P-718.7 717.7 Installation. The installation of relining materials shall be performed in accordance with the manufacturer's installation instructions, applicable referenced standards and this code. P-718.7.1 717.7.1 Material data report. The installer shall record the data as required by the relining material manufacturer and applicable standards. The recorded data shall include but is not limited to the location of the project, relining material type, amount of product installed and conditions of the installation. A copy of the data report shall be provided to the code official prior to final approval. P-718.8 717.8 Post-installation recorded video camera survey. The completed, relined piping system shall be inspected internally by a recorded video camera survey after the system has been flushed and flow-tested with water. The video survey shall be submitted to the code official prior to finalization of the permit. The video survey shall be reviewed and evaluated to provide verification that no defects exist. Any defects identified shall be repaired and replaced in accordance with this code. P-718.9 717.9 Certification. A certification shall be provided in writing to the code official, from the permit holder, that the relining materials have been installed in accordance with the manufacturer’s installation instructions, the applicable standards and this code. P-718.10 717.10 Approval. Upon verification of compliance with the requirements of Sections P-718.1 717.1 through P-718.9 717.9, the code official shall approve the installation.

Philadelphia Code § P-719 REHABILITATION OF BUILDING SEWERS

SECTION P-719 REHABILITATION OF BUILDING SEWERS P-719.1 718.1 Cure-in-place. Sectional cure-in-place rehabilitation of building sewer piping and sewer service lateral piping shall be in accordance with ASTM F2599 and shall be limited to one- and two- family dwellings. Hydrophilic rings or gaskets in cure-in-place rehabilitation of building sewer piping and sewer service lateral piping shall be in accordance with ASTM F3240 to ensure water tightness and elimination of ground water penetration. P-719.2 Applicability. The cure-in-place rehabilitation of existing building sewer piping shall be limited to gravity drainage piping 4 inches (102 mm) in diameter and larger. The cure-in-place rehabilitation piping shall be of the same nominal size as the existing piping. P-719.3 Preinstallation requirements. Prior to commencement of the cure-in-place rehabilitation installation, the existing piping sections to be rehabilitated shall be descaled and cleaned. After the cleaning process has occurred and water has been flushed through the system, the piping shall be inspected internally by a recorded video camera survey. P-719.3.1 Preinstallation recorded video camera survey. The video survey shall include verification of the project address location. The video shall include notations of the cleanout and fitting locations, and the approximate depth of the existing piping. The video shall also include notations of the length of piping at intervals not greater than 25 feet (7620 mm). P-719.4 Permitting. A plumbing permit shall be issued by the Department of Licenses and Inspections for this work and the work shall be properly inspected. Proof satisfactory to the Department shall be provided that the PA One Call and any other applicable agency has been properly notified prior to issuing a permit for this work. Prior to permit issuance, the code official shall review and evaluate the preinstallation recorded video camera survey to determine if the piping system is capable of being relined in accordance with the proposed rehabilitation system manufacturer’s installation requirements and applicable referenced standards. P-719.5 Prohibited applications. Where review of the preinstallation recorded video camera survey reveals that piping systems are not installed correctly or defects exist, rehabilitation shall not be permitted. The defective portions of piping shall be exposed and repaired with pipe and fittings in accordance with this code. Defects shall include, but are not limited to, backgrade or insufficient slope, complete pipe wall deterioration or complete separations such as from tree root invasion or improper support. P-719.6 Cure in place rehabilitation materials. The rehabilitation materials shall be manufactured in compliance with applicable standards and certified as required in Section 303. P-719.7 Installation. The installation of cure in place rehabilitation materials shall be performed in accordance with the manufacturer’s installation instructions, applicable referenced standards and this code. P-719.7.1 Material data report. The installer shall record the data as required by the cure in place rehabilitation material manufacturer and applicable standards. The recorded data shall include, but is not limited to, the location of the project, rehabilitation material type, amount of product installed and conditions of the installation. A copy of the data report shall be provided to the code official prior to final approval. P-719.8 Post-installation recorded video camera survey. The completed, rehabilitated piping system shall be inspected internally by a recorded video camera survey after the system has been flushed and flow-tested with water. The video survey shall be submitted to the code official prior to finalization of the permit. The video survey shall be reviewed and evaluated to provide verification that no defects exist. Any defects identified shall be repaired and replaced in accordance with this code. P-719.9 Certification. A certification shall be provided in writing to the code official, from the permit holder, that the cure in place rehabilitation relining materials have been installed in accordance with the manufacturer’s installation instructions, the applicable standards and this code. P-719.10 Approval. Upon verification of compliance with the requirements of Sections P-719.1 through P-719.9, the code official shall approve the installation.

Source: City of Philadelphia, The Philadelphia Code and Home Rule Charter (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/philadelphia/latest/philadelphia_pa/0-0-0-312425Fetched: 10/27/2026