Richard T Hackett

US Patent:

52797481, Jan 18, 1994

Filed:

Aug 28, 1992

Appl. No.:

7/936509

Inventors:

Richard Hackett - Rogers AR

International Classification:

C02F 150
C02F 170
C02F 172

US Classification:

210757

Abstract:

A filtering system with electrolytic action and method is disclosed which is adapted for filtering the water in swimming pools, spas, saunas, hot tubs, whirlpools and the like. The filtering system includes a pump for drawing water from a body of water and circulating this water through an electrolytic filter including a layer of electrolytic filter media of dissimilar metal particles or granules and returning this filtered water to the body of water. The filtering system not only removes sand and sediment but also prevents algae and fungus growth, kills bacteria, and eliminates the need for adding chlorine, bromine, and algacide to the water. In accordance with a preferred embodiment, the filtering system includes a bypass valve installed downstream of the pump to divert only a selected quantity of water through the electrolytic filter. The filtering system may include a conventional backwashing filter unit upstream of the electrolytic filter to prolong the useful life of the electrolytic filter media and to eliminate the need for backwashing of the electrolytic filter.