Patent ID: 6944893

Claim:
In combination with a whirlpool bath, said whirlpool bath having a tub, the tub having an inside surface, a closed loop piping system, a water pump, output jets and a suction device, the improvement comprising: a housing assembly having a mounting surface for providing a flush mount to the inside surface of the tub, below a fill line of the tub; said housing assembly having an input orifice and an output orifice, and a shape to enable drainage; said input orifice having a vertically oriented porous pop off faceplate screen; a chemical chamber in said housing assembly; said chemical chamber having a chemical that releases and mixes with water having a high velocity water flow, whereby said water is directly induced into a suction line of the whirlpool bathtub leading to the water pump; and wherein said chemical inhibits growth of microorganisms in the whirlpool bathtub during whirlpool bathtub use and/or between whirlpool bathtub usages.