(A) Materials. All sewer pipes under a building shall be cast iron, Schedule 40, Type I polyvinyl chloride meeting standard specification ASTM D-2665. Polyvinyl chloride sewer pipe may also be used in the right of way of any public or private street, alley or way meeting specification ASTM D-2665.
(B) Diameter. All sewer pipe, except common laterals and branch sewer pipe, from the sewer main to the stub from the building shall be at least four inches in diameter. Common laterals shall be not less than six inches in diameter and branch sewer pipe shall be not less than three inches in diameter.
(C) Location; grade. Sewer pipes shall be run as directly as possible and shall have a fall of at least one-eighth inch to the foot. Where sewer pipe runs under a sidewalk, it shall be at least two feet below the sidewalk. Sewer and drains of greater depth than ten feet may run up to the grade within three feet of the property line, and, where the property line is some distance above the grade of the street, one-eighth bends may be used. It shall not be necessary to lay sewer pipes deeper than two feet from the surface; provided, that a fall of one-eighth inch to the foot can be obtained.
(Prior Code, § 150.086)