UpCodes logo
Go To Full Code Chapter
Drainage pipe cleanouts shall comply with Sections P3005.2.1 through P3005.2.11.
Exception: These provisions shall not apply to pressurized building drains and building sewers that convey the discharge of automatic pumping equipment to a gravity drainage system.
P3005.2.1 Materials
Cleanouts shall be liquid and gas tight. Cleanout plugs shall be brass or plastic.
P3005.2.2 Spacing
Cleanouts shall be installed not more than 100 feet (30 480 mm) apart in horizontal drainage lines measured from the upstream entrance of the cleanout.
P3005.2.3 Underground Drainage Cleanouts
When installed in underground drains, cleanouts shall be extended vertically to or above finished grade either inside or outside the building.
P3005.2.4 Change of Direction
Cleanouts shall be installed at each fitting with a change of direction more than 45 degrees (0.79 rad) in the building sewer, building drain and horizontal waste or soil lines. Where more than one change of direction occurs in a run of piping, only one cleanout shall be required in each 40 feet (12 192 mm) of developed length of the drainage piping.
P3005.2.5 Accessibility
Cleanouts shall be accessible. The clearance in front of cleanouts shall be not less than 18 inches (457 mm) on 3-inch (76 mm) and larger pipes, and not less than 12 inches (305 mm) on smaller pipes. Concealed cleanouts shall be provided with access of sufficient size to permit removal of the cleanout plug and rodding of the system. Cleanout plugs shall not be concealed by permanent finishing material.
P3005.2.6 Base of Stacks
A cleanout shall be provided at the base of each waste or soil stack.
P3005.2.7 Building Drain and Building Sewer Junction
There shall be a cleanout near the junction of the building drain and building sewer. This cleanout shall be either inside or outside the building wall, provided that it is brought up to finish grade or to the lowest floor level. An approved two-way cleanout shall be permitted to serve as the required cleanout for both the building drain and the building sewer. The cleanout at the junction of the building drain and building sewer shall not be required where a 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 junction.
P3005.2.8 Direction of Flow
Cleanouts shall be installed so that the cleanout opens to allow cleaning in the direction of the flow of the drainage line.
P3005.2.9 Cleanout 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 size of the cleanout shall be not less than 4 inches (102 mm).
Exceptions:
  1. "P" trap connections with slip joints or ground joint connections, or stack cleanouts that are not more than one pipe diameter smaller than the drain served, shall be permitted.
  2. Cast-iron cleanouts sized in accordance with the referenced standards in Table P3002.3, ASTM A 74 for hub and spigot fittings or ASTM A 888 or CISPI 301 for hubless fittings.
P3005.2.10 Cleanout Equivalent
A fixture trap or a fixture with integral trap, readily removable without disturbing concealed piping shall be acceptable as a cleanout equivalent.
P3005.2.11 Connections to Cleanouts Prohibited
Clean-out openings shall not be used for the installation of new fixtures except where approved and an acceptable alternate cleanout is provided.

Related Code Sections

P3005.2 Sanitary Drainage, Drainage Pipe Cleanouts
Drainage pipe cleanouts shall comply with Sections P3005.2.1 through P3005.2.11. Exception: These provisions shall not apply to pressurized building ...
P3005.2.7 Sanitary Drainage, Building Drain and Building Sewer Junction
There shall be a cleanout near the junction of the building drain and building sewer. This cleanout shall be either inside or outside the building ...
P3005.2.8 Sanitary Drainage, Direction of Flow
Cleanouts shall be installed so that the cleanout opens to allow cleaning in the direction of the flow of the drainage line ...
P3005.2.2 Sanitary Drainage, Spacing
Cleanouts shall be installed not more than 100 feet (30 480 mm) apart in horizontal drainage lines measured from the upstream entrance ...