Abstract: A submersible bilge pump is used within a tub to provide a Jacuzzi-type jet spray. A mounting assembly enables the bilge pump to be located below the water in the tub, yet the mounting assembly allows for effective mounting to the tub to provide the water jet type action. The mounting assembly also allows for the submersible bilge pump to be rotatably fastened to the tub to provide a whirlpool type action when desired.

Abstract: A submersible bilge pump is used within a tub to provide a Jacuzzi-type jet spray. A mounting assembly enables the bilge pump to be located below the water in the tub, yet the mounting assembly allows for effective mounting to the tub to provide the water jet type action. The mounting assembly also allows for the submersible bilge pump to be rotatably fastened to the tub to provide a whirlpool type action when desired.

Abstract: An air control valve is provided for use in a spa to regulate the flow of air to a hydrotherapy jet in which a recessed control knob is accessible at a rim of the spa to actuate a movable valve member to selectively constrict or dilate an air flow passage through the valve body which has an air intake opening underneath the spa rim to isolate the noise associated with the intake opening from the user.

Abstract: A micro bubble generating system includes a shell having a well for retaining a first liquid to immerse an object. A micro bubble apparatus is provide to the shell for providing a pressurized mixture of a second liquid and a dissolved gas into the well so as to create a plurality of micro bubbles within the first liquid for engaging the object. One method of using micro bubbles includes providing a fluid mixture, including a saturated gas, to a fluid chamber connected a fitting; and producing a plurality of micro bubbles into a fluid. Another method of using micro bubbles includes providing a fluid mixture, including a saturated gas, into an air entrapment chamber; and producing a plurality of micro bubbles into a fluid.

Abstract: A micro bubble generating system includes a shell having a well for retaining a first liquid to immerse an object. A micro bubble apparatus is provide to the shell for providing a pressurized mixture of a second liquid and a dissolved gas into the well so as to create a plurality of micro bubbles within the first liquid for engaging the object. A micro bubble generating apparatus may include a housing body having a first fluid passage for a pressurized mixture of a liquid and a dissolved gas in a direction towards a fluid flow. An orifice member can be releasably engaged with the housing body and the orifice member may have a second fluid passage being disposed therein; and the second fluid passage being disposed at an angle with respect to the first fluid passage for generating a plurality of micro bubbles from the mixture; and an opening in the housing body for releasing the plurality of micro bubbles.