N.J. Admin. Code § 7:9A-9.6 - Pressure dosing networks

(a) Pipe networks for pressure dosing systems shall consist of two or more distribution laterals connected to a central or end manifold. The following requirements shall be met:

1. The size of laterals shall be no less than one but no greater than three inches in diameter and shall be chosen in conformance with 7:9A-9.7(a)3. The size of the manifold pipe shall be chosen in conformance with 7:9A-9.7(a)5.

2. Spacing and arrangement of laterals shall conform with the requirements of 7:9A-10.3(d).

3. All joints and connections shall be water-tight. Solvent-weld joints shall be used.

4. Holes shall be spaced evenly, in a straight line along the invert of each lateral. Hole diameter and spacing may vary from one-quarter to one-half inch and from 30 to 60 inches, respectively, and shall be chosen in conformance with 7:9A-9.7(a)2. In bed systems, holes in adjacent laterals shall be off-set by one-half the hole spacing so that the distance between holes in adjacent laterals is maximized. All holes shall be deburred.

5. The ends of the laterals shall be capped. A small hole shall be drilled horizontally in the end-cap of each lateral, near the crown, to facilitate venting at the beginning of each dosing cycle.

6. Each individual distribution line shall be approximately level. In no case shall the slope of the distribution lines be greater than two inches per 100 feet.

7. An inspection port shall be provided in each corner of a disposal bed or at each end of a disposal trench. Inspection ports shall consist of a perforated pipe with a removable cap, extending from the level of infiltration to finished grade.

8. Pressure dosing networks shall be constructed of PVC plastic (ASTM D-2665), schedule 40, SDR-21 or SDR-26, or ABS plastic (ASTM D-2661) pipe.

Notes

N.J. Admin. Code § 7:9A-9.6

Amended by R.1993 d.294, effective 6/21/1993.
See: 24 N.J.R. 1987(a), 25 N.J.R. 2704(b).
Amended by R.2012 d.066, effective 4/2/2012.
See: 43 N.J.R. 478(a), 44 N.J.R. 1047(a).
In (a)8, substituted "D-2665" for "D-2662" and "D-2661" for "2661.