Abstract: A user-selectable multi-jet assembly (10) for jetted baths/spas includes a faceplate assembly (12) having a first set of three user-selectable ball-type nozzles (14) and a second set of three user-selectable swirler-type nozzles (16). The faceplate assembly 12 is bidirectionally rotatable about an axis A.sub.x between two user-selectable positions in which either the ball-type nozzles (14) or the swirler-type nozzles (16) are selected. The multi-jet assembly (10) includes a housing (46) into which both water and air are supplied and internal distribution tubes (28) through which water is directed into the user-selected nozzles. The faceplate assembly (12) is connected to an internal rear valve plate (50) that cooperates with a stator (52) to effectively interrupt water flow through the nozzles as the faceplate assembly (12) is rotated from one user-selected position to the other.

Abstract: A suction-actuated control system (10) for a whirlpool bath/spa installation includes a suction-side transducer (52) connected in the suction inlet path and a controller (54). The suction-side transducer (52) transmits an air pulse to the controller (54) when pressure in the suction path drops below a pre-determined value caused, for example, by a full or partial blockage of a suction cover (26) by a wash cloth or an article of clothing. The controller (54) includes an electric switch (62) in circuit with the recirculation pump (34) and a bi-state controller (66) that actuates the electric switch (62) between its ON state and its OFF state. An abnormally low pressure in the suction path to the recirculation pump (34) caused by a full or partial blockage of the suction cover (26) will cause the controller (54) to shut-off the recirculation pump (34). After the obstruction is removed and a short time delay, the user can actuate a user ON/OFF control (56) to restart the pump (34).

Abstract: A flow-regulating valve is located in the outlet of the housing of a centrifugal pump instead of in downstream piping, to regulate the flow from the pump without the usual acoustic disturbance caused by flow. The arrangement is especially adapted for hydro-therapeutic installations, such as a spa, hot tub, whirlpool bath or the like. The valve is operated by a control conveniently accessible to the occupant of the hydro-therapeutic installation. The control can be in the form of a knob connected to the valve by flexible cable or the like or in the form of a single push-button which controls both the electric motor for the pump and an electric motor which operates the valve.