(A) A separate and independent building sewer shall be provided for every building connected to the sanitary sewer system, except that where one building stands at the rear of another and it is impractical to provide separate building sewers or to connect the rear building through an adjoining alley, court, yard or driveway, the building sewer from the front building may be extended to the rear building and the whole considered as one building sewer. Other exceptions may be allowed by the Council upon a showing that the provision of a separate and independent building sewer is impractical.
('82 Code, § 3.331)
(B) An old building sewer or portion thereof may be used to connect a new building only when found, on examination and test by the Superintendent or other authorized agent of the city, to meet all requirements of this code and all other applicable requirements.
('82 Code, § 3.332)