Abstract

A sanitary device liquid circulation system includes a water supply portion, an additive supply portion and an air supply portion. The water supply portion includes a water source, a selectively renewable water pool, a delivery passage extending from the water source to the water pool and a valve controlling the flow of water from the water source to the water pool. The additive supply portion includes an additive reservoir, a first conduit extending from the reservoir to the delivery passage and metering mechanism disposed along the first conduit. The metering mechanism includes a chamber, a movable piston disposed within the chamber with the piston being movable in response to water flow changes in the water supply portion. The air supply portion includes an electrical motor, an electrical power source for the motor and control mechanism intermittently actuating the motor. Pulsing mechanism is operatively connected to the motor and a pump includes a movable diaphragm responsive to the pulsing mechanism. There is an outlet from the pump and a second conduit extends from the outlet in the water pool. The second conduit includes an outlet in the water pool providing a multiplicity of small spaced openings. A predetermined quantity of additive is metered into the pool of water in response to water flow changes in the water supply portion and air is introduced intermittently into the water pool in a multiplicity of bubbles to maintain a foam in the water pool.