Section 905.50  Distribution Boxes

a)         General.  Distribution boxes may be installed between a septic tank, aerobic treatment plant, NSF International/ANSI Standard 40 wastewater treatment system, and a subsurface seepage system or buried sand filter.  If a distribution box is used, it shall be installed level on unexcavated earth, and shall provide equal distribution of flow to the subsequent disposal system.

b)         Connecting Pipe.  The pipe connecting the pre-treatment or primary treatment component to the distribution box and the pipe connecting the distribution box to the disposal system shall be watertight.

c)         Construction.  Distribution boxes shall be constructed of a durable, watertight, non-corrosive material.  They shall be designed to accommodate the necessary distribution lines.

d)         Access.  Distribution boxes shall be provided with an opening that will serve as a ready access for inspection, cleaning and general maintenance.

e)         There shall be no connection such as joints, splices or fittings within the area of the overdig around the distribution box.

(Source:  Amended at 37 Ill. Reg. 14994, effective August 28, 2013)