(a) All sewer lines in mobile home parks shall be laid in trenches separated at least five feet horizontally from any water supply lines. All sewer connections and manholes shall be so constructed as to prevent surface water from entering the sanitary sewer. The sewer shall be constructed of durable materials which are corrosion resistant and shall be so installed as to remain watertight and be rootproof.

(b) Caulked joints for cast iron bell and spigot soil pipe in mobile home parks shall be firmly packed with oakum and filled with molten lead one inch deep and caulked tight.

(c) Vitrified clay sewer pipes in mobile home parks shall be whole sound bell and spigot pipe free from cracks, joined together with hot bituminous joints, or a three-part sand, one-part Portland cement mixture troweled smooth, or an approved factory-made precast joint attached to the pipe or cold mastic compound.

(d) All connections or necessary fittings or special connections in mobile home parks shall be made by the use of wyes and one-eighth bends or long sweep one-fourth bends; short pattern tee and ells are prohibited.

(e) Individual trailer unit laterals in mobile home parks shall not be less than four inches in diameter. Each trailer outlet shall terminate with five feet of standard cast iron soil pipe, a cast iron P trap and not less than a two-foot riser with top of the hub four inches above grade.

(f) Sewer mains and branch laterals with more than two trailer outlets in mobile home parks shall be terminated with a cleanout and vent stack 10 feet above grade.

(g) Each mobile home sewage outlet shall be connected to the park sewer line with suitable fittings to cause a watertight juncture to be made between the mobile home and the sewer line. (Code 1981 § 25-105. Code 1995 § 98-154.)