A passive cooling system for an electric motor drive circuit in a bathing installation, including a section of hollow pipe made of a thermally conductive tubing material, the pipe configured to form part of a water recirculation path of the bathing installation. An adapter structure has a conformal surface configured for attachment to an outer surface of the pipe and a circuit contacting surface for attachment to the motor drive circuit, the adapter structure fabricated of a thermally conductive adapter material. The adapter structure provides a thermal conductive path between the motor drive circuit and the pipe section, configured to pass heat generated by the circuitry to the pipe section and into spa water flowing through the water recirculation path, to cool the circuitry and warm the spa water.

A reconfigurable water distribution system for a walk-in tub bathing installation including two or more types of discharge ports for discharging water. The system includes a single motorized pump having an input connected to a suction port of the bathing installation, and an output port delivering pressurized water. A pipe system selectively connects the pump to the two or more types of discharge ports to selectively direct the pressurized water to the different ones of the types of discharge ports. The system selectively enables the bathing installation to perform a plurality of different functions using a single pump.

An apparatus and method for providing therapeutic bubbling massage of a person's body. The apparatus may be adapted to float on, for example, a pond, lake or pool. The apparatus may be formed of pressurized pneumatic tubing having an interior volume that is pressurized with air. The pneumatic tubing may form a frame allowing a user to sit, lie, recline or otherwise be disposed on upper surfaces of the pneumatic tubing. The weight of a user disposed on the upper surfaces of the pneumatic tubing may force a portion of the pneumatic tubing below the surface of the fluid in which the apparatus is floating, such that bubbles are formed when the pressurized gas is allowed to escape the pneumatic tubing through openings, impacting the body of the user. The gas may be heated or may be infused with an aroma.

An apparatus and method for providing therapeutic bubbling massage of a person's body. The apparatus may be adapted to float on, for example, a pond, lake or pool. The apparatus may be formed of pressurized pneumatic tubing having an interior volume that is pressurized with air. The pneumatic tubing may form a frame allowing a user to sit, lie, recline or otherwise be disposed on upper surfaces of the pneumatic tubing. The weight of a user disposed on the upper surfaces of the pneumatic tubing may force a portion of the pneumatic tubing below the surface of the fluid in which the apparatus is floating, such that bubbles are formed when the pressurized gas is allowed to escape the pneumatic tubing through openings, impacting the body of the user. The gas may be heated or may be infused with an aroma.

A whirlpool bath with descaling function is provided. The whirlpool bath 1 comprises a bathtub body 10 including a bathtub 11, suction port 20 sucking the water contained in the bathtub 11, first jet nozzles 30 jetting bubble water into the bathtub 11, a circulation pipe 40 including a water supply pipe 41 and a return pipe 42, a pump 50 installed in the circulation pipe 40, a bypass pipe 60 branched from the water supply pipe 41 and connected to the return pipe 42 to directly return the water in the water supply pipe 41 to the pump, and a second jet nozzle 70 mixing air with water passing through the bypass pipe 60 to generate and jet bubble water. The scale of the circulation pipe 40, the pump 50 and the bypass pipe 60 is removed by bubble water generated by the second jet nozzle 70.

A whirlpool bath with descaling function is provided. The whirlpool bath 1 comprises a bathtub body 10 including a bathtub 11, suction port 20 sucking the water contained in the bathtub 11, first jet nozzles 30 jetting bubble water into the bathtub 11, a circulation pipe 40 including a water supply pipe 41 and a return pipe 42, a pump 50 installed in the circulation pipe 40, a bypass pipe 60 branched from the water supply pipe 41 and connected to the return pipe 42 to directly return the water in the water supply pipe 41 to the pump, and a second jet nozzle 70 mixing air with water passing through the bypass pipe 60 to generate and jet bubble water. The scale of the circulation pipe 40, the pump 50 and the bypass pipe 60 is removed by bubble water generated by the second jet nozzle 70.

Disclosed is a disposable for use with a structure having a vessel surface that defines a vessel for receiving liquid. The disposable includes a pad and a layer. The pad has a pair of surfaces spaced apart from one another by a tubular sidewall. The pad is permeable to air flow. One of the pair of surfaces is positioned, in use, against the vessel surface. The layer overlies the other of the pair of surfaces and is at least substantially impermeable to air flow. In use, gas is introduced into the pad and issues through the sidewall in the form of bubbles. The disposable is useful in association with foot spas and the like.

A bubble-generating apparatus comprises: a casing defining a casing bore extending longitudinally therethrough; and a diffuser located in the casing bore, the diffuser defining a diffuser bore extending longitudinally therethrough. The diffuser bore comprises a fluid-input region at or near a fluid-input end of the diffuser and a fluid-output region at or near a fluid-output end of the diffuser. A cross-sectional area of the diffuser bore in the fluid-input region is greater than the cross-sectional area of the diffuser bore in the fluid-output region. At least a portion of the diffuser is porous for permitting a flow of pressurized gas from a region of the casing bore located outside of the diffuser bore, through the porous portion of the diffuser and into the diffuser bore.

A water distribution system for providing multiple bathing functions independently for a walk-in bath tub using one pump that delivers pressurized water to a first valve having a first outlet for communicating pressurized water to a second valve and a second outlet for communicating pressurized water to a drain, the second valve selectively positioned for communicating pressurized water selectively to a respective piping system for a micro bubbles bathing function and for a pressurized jet bathing function, and a controller for moving the valves selectively to provide three operational bathing functions independently with the one pump. A method for providing multiple bathing functions independently with one pump is disclosed.

An apparatus and method for providing therapeutic bubbling massage of a person's body. The apparatus may be adapted to float on, for example, a pond, lake or pool. The apparatus may be formed of an inflatable bladder having an interior volume that is pressurized with air. The weight of a user disposed on the upper surfaces of the inflatable bladder may force a portion of the bladder below the surface of the fluid in which the apparatus is floating, such that bubbles are formed when the pressurized gas is allowed to escape the bladder through openings impacting the body of the user. The gas may be heated or may be infused with an aroma.