(A) All joints and connections shall be made gastight and watertight. Cast iron pipe joints shall be firmly packed with oakum or hemp and filled with molten lead, federal specifications QQ-L-156, not less than one inch deep. Lead shall be run in one pouring and caulked tight. No paint, varnish or other coatings shall be permitted on the jointing material until after the joint has been tested and approved.
(B) All joints in vitrified clay pipe or between such pipe and metals shall be made with approved hot-poured painting material or cement mortar, as specified below.
(C) Material for hot-poured joints shall not soften sufficiently to destroy the effectiveness of the joint when subjected to a temperature of 160°F, nor be soluble in any of the wastes carried by the drainage system. The joint shall first be caulked tight with jute, hemp or similar approved material.
(D) Cement joints shall be made by packing a closely twisted jute or oakum gasket of suitable size to fill partly the armular space between the pipes. The remaining space shall be filled, and firmly compacted, with mortar composed of one part Portland cement and two parts fire clay. The material shall be mixed dry and only sufficient water shall be added to make the mixture workable. Mortar which has begun to set shall not be used or retempered. Lime putty or hydrated lime may be substituted to the extent of not more than 25% of the volume of the Portland cement that may be added.
(E) Other jointing materials and methods may be used only by approval of the City Engineer.
(1979 Code, § 2.71) (Ord. 41, passed 7-1-1969)