(A) The building sewer shall be vitrified clay sewer pipe with rubber seal joints or cast iron soil pipe with rubber seal joints. Joints shall be tight and water-proof.
(B) The size and slope of the building sewer shall be subject to the approval of the engineer, but in no event shall the diameter be less than four inches. The slope of four-inch pipe shall be not less than one-eighth inch per foot.
(C) All joints and connections shall be made gastight and watertight. Material for factory applied joints on vitrified clay pipe shall be the latest approved standard, as manufactured by the pipe manufacturer or approved equal. When jointing vitrified clay pipe, the joint surfaces shall be wiped free of dust, dirt, gravel, or other foreign materials, both before and after the application of the lubricant sealer. The vitrified clay pipe with the factory applied coupling shall be connected by first brushing upon the mating surfaces the proper lubricant sealer as recommended by the pipe supplier. The spigot end shall then be centered on grade into the bell end of the last downstream clay pipe length and shoved home and properly seated with the application of a moderate force by a pry or lever device. The pipes shall be joined no later than five minutes after the application of the lubricant sealer. Other jointing materials and methods may be used only by approval of the Manager.
(Ord. passed 1-7-1965)