Each coach space shall be provided with at least a three-inch building sewer, trapped below the frost line and extending at least four inches above the surface of the ground. It shall be further protected by a concrete collar at least three inches in depth and extending 12 inches from the connection in all directions. The sewer outlet shall consist of a three-inch or larger quarter-bend or Y, capped with standard ferrules with three-inch screw plugs provided with keeper chains fastened to the concrete collar. The hose connecting the trailer coach to the sewer outlet shall be watertight, equipped with a threaded connection to connect to the sewer outlet and with either a threaded, fitted or clamped connection for the coach drain. The trailer court owner shall maintain in good repair several spare connecting hoses to be used when privately owned hoses do not meet the requirements of this provision.
A. 
Sewer lines shall be laid in trenches separated horizontally from any potable water line by at least five feet of undisturbed or well compacted earth or laid in a common trench with the potable water line placed on a firm foundation at the side of the trench at least 12 inches above the top of the sewer line.
B. 
The minimum size of sewer lines shall be six inches and shall be laid at the following minimum grades:
Pipe Size
(inches)
Vitrified Tile, Concrete
Asbestos Cement
6
0.65%
0.40%
8
0.40%
0.24%
10
0.29%
0.18%
12
0.22%
0.14%
C. 
All sewer line joints shall be made as watertight as possible to minimize groundwater infiltration.
A. 
Manholes shall be located at every change in direction, at every junction of two or more branch sewers and at intervals of not more than 400 feet extending to grade and provided with cleanout plugs may be used in place of manholes on six-inch lines, and be at intervals of not more than 100 feet.
B. 
Where tight manhole covers and cleanouts are employed, each sewer lateral serving a row of coach spaces shall be properly vented at its upper end. Where septic tanks are used, the line(s) entering the tanks shall be vented between the tank end and the first trailer-coach connection.
Where the sewer lines of a trailer court are not to be connected to public sewer system, a disposal system shall be installed in accordance with the Standards for Construction of Sewerage Facilities for Realty Improvements promulgated by the State Commissioner of Health in accordance with c. 199, P.L. 1954.[1]
[1]
Editor's Note: See N.J.S.A. 58:11-23 et seq., The Realty Improvement Sewerage and Facilities Act (1954).
A. 
Drainage for stormwater shall be provided at all trailer courts.
B. 
Stormwater sewers shall be separate and apart from the sanitary sewerage system of a trailer court.