(A) All joints and connections shall be made gas-tight and water-tight. 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 on pouring and caulking 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 jointings material or cold mix asphalt materials, 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 to be soluble in any wastes carried by the drainage system. The joint shall first be caulked tight with jute, hemp, or similar approved material. Commercial cold mix asphalt compounds shall be used. This material shall be designed for sewer jointings purposes and other compounds shall not be used. The joint shall be caulked as for hot mix material.
(D) Cement joints shall be made by packing a clearly twisted jute or oakum gasket, of suitable size, to fill partly the annular space between the pipes. The remaining space shall be filled and firmly compacted with mortar composed of one part Portland cement and three parts mortar sand. The material shall be mixed dry; 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) Every joint in plastic piping shall be made with approved fittings by either solvent welded or fusion welded connections, approved insert fittings, and metal clamps and screws of corrosion resistant material, or threaded joints according to accepted standards. Plastic pipe shall be cut square with tools specifically designed for plastic. All burrs, chips, and fillings shall be removed from both the I.D. and O.D. of the pipe.
(F) Other jointing materials and methods may be used only by approval of the Superintendent, or other officer or employee of the city appointed for such purpose.
(Prior Code, § 52.050)