The size and slope of each building sewer shall be subject to the approval of the Director, but in no event shall the diameter be less than four inches. The grade of such pipe shall be a minimum of one-fourth inch per lineal foot (2%) from the building to the public sewer; except that the Director may authorize the grade to be as little as one-eight inch per lineal foot (1%) if he determines such to be desirable or necessary. In no case shall a floor level being served by a building sewer be less than thirty-six inches (36") above the crown of the receiving sewer at the point of connection of the building sewer, unless otherwise approved by the Director.
(Ord. 17-9-0. Passed 7-14-97.)