Patent ID: 7503082

Claim:
An air massage system for a bathtub comprising a blower, an air distributor, and water jets, said air distributor being adapted to connect said blower to said jets, said jets being adapted to deliver air under pressure to the cavity defined by the bathtub, said air distributor comprising a manifold having a water check valve for generally preventing water from reaching said blower, and at least one water relief valve for draining water from said manifold, in the event that water infiltrates said manifold upstream of the water check valve in said manifold, said water relief valve defining an outlet and comprising a ball being displaceable between open and closed positions, said outlet being closed by said ball in said closed position by air pressure of said blower for preventing air pressure losses during said operation, said ball moving away from said opening when the blower is stopped to allow water to flow through said outlet in said open position for allowing the drainage of water that has infiltrated said air distributor.