04588325 is referenced by 42 patents and cites 10 patents.

Apparatus and a method for constructing a sewage drain field without a rock media. The drain field includes a plurality of lengthwise connected drain pipes suspended above the trench bottom within a channel formed by a plurality of elongated mesh-like channel forming members and in overlying relation to which assembly a porous, conforming length of sheet goods is mounted. As necessary, mesh-like end caps seal the ends of the channel forming members. Independently mounted filter elements may be used to filter the grey water and/or channel the grey water in lieu of the conduit.

Title
Modular rock replacing drain field apparatus
Application Number
6/634459
Publication Number
4588325
Application Date
July 26, 1984
Publication Date
May 13, 1986
Inventor
Kenneth F Seefert
10003 Mendel Rd., Stillwater, 55082
MN, US
Agent
Douglas L Tschida
IPC
E02B 13/00
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