Spa with filter assembly accessible through its coping lip

Details Spa with filter assembly accessible through its coping lip Spa with filter assembly accessible through its coping lip

1992-04-07

1993-08-17

Drodge, Joseph W.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid pressure responsive by-pass

45411, 45413, 521697, 210169, 210205, 210295, 210340, 2104162, B01D 35147, B01D 3502

Patent

active

052365816

ABSTRACT:
A spa having a filter assembly mounted in a sidewall and accessible through the coping at the top periphery of the spa. The filter assembly has a plurality of filter elements and a chemical dispensing mechanism easily accessible and replaceable through the coping. The filter assembly is downstream of the pump and heater to prevent cavitation erosion of the pump impeller. A pressure valve allows water to by-pass the filter assembly when clogged or operated at high pump rates. The top of the filter assembly is concealed in a well defined in the coping and closed by a cover having a profile matching that of the coping.

REFERENCES:
patent: 4462125 (1984-07-01), Jakowicki
patent: 4630634 (1986-12-01), Sasaki et al.
patent: 4705629 (1987-11-01), Weir et al.
patent: 4780197 (1988-10-01), Schuman
patent: 4942630 (1990-07-01), Kantor et al.
patent: 5100542 (1992-03-01), Landman et al.
patent: 5107551 (1992-04-01), Weir et al.
patent: 5178523 (1993-01-01), Cheng-Chung

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