Patent ID: 7186334

Claim:
A water sanitizer for bathing facilities such as swimming pools, spas, hot tubs and the like comprising: a housing having a plurality of narrow compartments through which a flow of water to be purified flows sequentially in upward and downward directions, said housing having a water inlet to a first of said compartments and a water outlet from a last of said compartments, an ultraviolet ozone generator in one of said compartments, said ozone generator comprising: an ultraviolet-transmissive housing in said flow of water, an ultraviolet lamp in said ultraviolet-transmissive housing, a chlorine generator comprising: a pair of electrolysis plates mounted in at least a portion of said water to be purified, and to which an electrolysis potential is applied, a supply of salt in said at least a portion of said water to be purified, a venturi having a plurality of suction ports, with said water to be purified developing a motive flow through said venturi, with at least ozone from said ozone generator provided to one of said plurality of suction ports; a first canister apart from said housing containing said pair of electrolysis plates, a second canister containing said supply of salt, said second canister coupled to said flow of water and controllably providing a salt solution to said first canister, said first canister coupled to another one of said plurality of suction ports and providing chlorine developed by electrolysis to said flow of water, wherein said housing is formed from a narrow square or rectangular extruded part, with interior walls of said extruded part forming said plurality of narrow compartments within said housing, with opposed sides of said extruded part capped to form side walls of said housing.