§ 30-100. Trailer park plumbing and drainage systems—General.

(a)

Adherence to Code. Trailer park plumbing and drainage systems shall be designed and installed in accordance with the provisions of this chapter and the technical requirements of the 2012 International Plumbing Code, except as explicitly noted in this division.

(b)

Plans and specifications required. Before any plumbing or sewage disposal facilities are installed or altered in any trailer park, duplicate plans and specifications shall be filed and proper permits obtained from the city plumbing inspection division. Plans shall show in detail:

(1)

Plot plan of park, property lines, driveways, existing or proposed buildings and the sizes of trailer sites.

(2)

Complete specification and piping layout of proposed plumbing system or alteration.

(3)

Complete specification and layout of proposed sewage disposal system or alteration.

(c)

Drainage installation. Each trailer site shall be provided with a four (4) inch cast iron hub with a four (4) inch clean-out plug installed therein extending above the surrounding grade from a four (4) inch, minimum size, "P" trap. Traps shall be located with reference to the immediate boundary lines of the designated space or area within each trailer site that will actually be occupied by the trailer. Each such trap shall be located in the rear third quarter section along the left boundary line of the trailer parking area. Each trap inlet connection shall be protected at grade by a concrete pad not less than four (4) inches thick and eighteen (18) inches square. No trap shall be more than twenty-four (24) inches below grade. Each trap inlet connection shall be effectively capped with a screw-type cap or plug when not in use.

(d)

Trailer drainage connectors. Connectors from trailer drain in the connector.

(e)

Materials. All traps, risers from traps, vents and the first five (5) feet from the trap on each trap branch shall be of materials approved for underground use within a building; provided, however, that approved type nonmetallic pipe may be used for the balance of the system when not under any trailer or any possible future building site.

(f)

Wet vents. Drainage systems may be wet vented. A building, or house sewer could serve as a wet vent for one or two (2) trailers.

(g)

Location and size of vents. Each wet vented drainage system shall be provided with a vent. Long mains shall be provided with additional relief vents at intervals of not more than one hundred (100) feet thereafter. The minimum size of any vent serving a wet vented system shall be not less than four (4) inches in diameter.

(h)

Size and location of cleanouts. Cleanouts shall be provided at the upper end of each horizontal drainage line and at intervals of not more than fifty (50) feet thereafter. Each cleanout shall be brought up to grade and made readily accessible. Cleanout fittings shall not be less than the size of the pipe except that none need to be larger than four (4) inches.

(i)

Pipe sizes. For the purpose of determining pipe sizes, each trailer connection shall be like a residence of the same size.

(Ord. No. 04-113, § 2, 12-21-04; Ord. No. 07-068, § 10, 9-13-07; Ord. No. 15-045, § 2, 6-11-15 )