Hydraulic and earth engineering – Drainage or irrigation
Patent
1995-06-30
1997-01-28
Graysay, Tamara L.
Hydraulic and earth engineering
Drainage or irrigation
405 43, 405 45, 33562, 33613, 210170, 2105322, E02B 1300, B01D 4300
Patent
active
055972640
ABSTRACT:
A leaching field is prepared by fitting together segments of PVC pipe in the manifold configuration that defines a plurality of outlets, each outlet having a unique in-drain configuration with an internal core and external non-woven geotextile fabric envelope. The method calls for supporting these relatively flexible in-drains with a template while space between the in-drains is filled with sand or the like. In a further embodiment each of the in-drains is fitted with a stand pipe that is useful to backflush the in-drains periodically.
REFERENCES:
patent: 2536196 (1951-01-01), MacLeod
patent: 4917536 (1990-04-01), Glasser
Graysay Tamara L.
Mayo Tara L.
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