(A) The building sewer shall be cast iron soil pipe or vitrified clay sewer pipe or other suitable material in conformity with the town and state building codes. Joints shall be tight and waterproof. Any part of the building sewer that is located within ten feet of a water service pipe shall be constructed of pressure rated joints. The size and slope of the building sewer shall be in conformity with the town and state building codes, but in no event shall the diameter be less than one-eighth-inch per foot.
(B) No building sewers shall be laid parallel to or within three feet of any bearing wall which might be weakened. The depth shall be sufficient to afford protection from frost. The building sewer shall be laid at a uniform grade and in straight alignment insofar as possible. Changes in directions shall be made only with properly curved pipes and fittings. In all buildings in which any building drainage is too low to permit gravity flow to the public sewer, sanitary sewage carried by the drain shall be lifted by approved artificial means and discharged to the building sewer.
(C) No person shall construct a residential or commercial building with any plumbing located in its basement or any below ground level floor connected by gravity to the sanitary sewer unless the top of the nearest upstream manhole or cleanout with a pop-off cover on the sanitary sewer is a minimum of one foot lower than the elevation of the basement or floor in question. All plumbing located in basements or any below ground level floors shall be connected to an appropriate pump to direct the discharge from such plumbing to the sewer.
(1991 Code, § 50.16) Penalty, see § 51.999