Swimming pool water circulation system

Baths – closets – sinks – and spittoons – Pool type – Construction details

Patent

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Details

4490, E04H 316, E04H 318

Patent

active

045035733

ABSTRACT:
A swimming pool water circulation system having a two-state valve which is alternately operated for predetermined lengths of time in a first state wherein water flow through the system is at a relatively low pressure high volume flow rate for efficient water filtration and in a second state wherein the water flows through the system to a pool cleaning device or system at a relatively high pressure low volume flow rate for efficient operation of the pool cleaning system or device.

REFERENCES:
patent: 3623165 (1971-11-01), Whittall, Jr.
patent: 4185333 (1980-01-01), Ortega
patent: 4348192 (1982-09-01), Pansini
patent: 4371003 (1983-02-01), Goguen
patent: 4378254 (1983-03-01), Chauvier

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