If the building sewer is installed in a trench separate from the water service, the sewer pipe material shall be of either asbestos cement, cast iron, concrete, vitrified clay, or plastic pipe that conforms to ASTM (D-3034078) Material Standard Type SDR - 35 or heavier. The condition in 20:54:02:06 shall also be met. Joints shall be water-tight and rat-proof. If the building sewer is installed in the same trench as the water service, the sewer pipe material shall be cast iron or schedule 40 ABS or PVC and installed to remain water-tight and rat-proof. The sewer shall be tested with ten-foot head of water or equivalent and found to be tight. If installed in filled or unstable ground, the building sewer shall be of cast iron soil pipe, except that non-metallic material may be accepted if lain on a suitable concrete bed or cradle, as approved by the Superintendent, or other officer or employee of the city. All building sewers and connections to the public sewer shall conform to the building and plumbing code, and all other applicable rules and regulations of the city, and the rules and regulations of the state.
(Prior Code, § 52.045)