Filter underdrain with prefabricated cells

Details Filter underdrain with prefabricated cells Filter underdrain with prefabricated cells

1998-07-27

2000-04-11

Lillis, Eileen Dunn

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

405 45, 405118, 405119, 210275, 210291, 210293, 521695, E02B 1100, B01D 2412

Patent

active

060481323

ABSTRACT:
An improved method for constructing filter underdrain systems may be provided which uses prefabricated underdrain cells. The prefabricated underdrain cells may have a one piece construction having side walls and a bottom. The side walls may include a porous plate support ledge with a ridge at the center of the ledge. The ridge helps ensure that the sealant forms a uniform and effective gasket when the porous plates are installed.

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