18-29-708.1 Scope.

   This section shall govern the size, location, installation and maintenance of drainage pipe cleanouts.

18-29-708.2 Cleanout plugs.

   Cleanout plugs shall be of brass, plastic or other approved materials. Brass cleanout plugs shall be utilized with metallic drain, waste and vent piping only, and shall conform to ASTM A74. Plastic cleanout plugs shall conform to the requirements of Section 18-29-702.4. Plugs shall have raised square or countersunk square heads. Countersunk heads shall be installed where raised heads are a trip hazard. Cleanout plugs with borosilicate glass systems shall be of borosilicate glass.

18-29-708.3 Where required.

   Cleanouts shall be located in accordance with Sections 18-29-708.3.1 through 18-29-708.3.5.

18-29-708.3.1 Horizontal drains within buildings.

   All horizontal drains shall be provided with cleanouts located not more than 100 feet (30.48 m) apart, except that the maximum shall be 50 feet (15.25 m) for drains 4 inches (100 mm) diameter or less, 150 feet (45.7 m) for drains 10 inches (250 mm) diameter or larger.

18-29-708.3.2 Building sewers.

   All building sewers shall be provided with cleanouts located not more than 100 feet (30.48 m) apart measured from the upstream entrance of the cleanout, unless manholes are adequately spaced according to the current edition of the permit requirement and fees book.

18-29-708.3.3 Changes of direction.

   Cleanouts shall be installed at each change of direction of the building drain or horizontal waste or soil lines greater than 45 degrees (0.79 rad). Where more than one change of direction occurs in a run of piping, only one cleanout shall be required for each 40 feet (12.2 m) of developed length of the drainage piping.