Abstract: A spa with a pop-up waterfall apparatus constructed according to the invention includes a container for a reservoir of water and a water-sheeting manifold assembly mounted on the container The water-sheeting manifold assembly includes a water-sheeting manifold that is adapted for movement between a lowered first position and an elevated second position. A waterfall apparatus constructed according to one aspect of the invention includes a housing defining an upwardly opening chamber that extends from a bottom portion of the housing to a top portion of the housing, and it also includes a water-sheeting manifold that fits at least partially within the upwardly opening chamber. The housing includes a water inlet in fluid communication with the upwardly opening chamber that functions as means for coupling water from a separate source of pressurized water to the upwardly opening chamber.

Abstract: An improved adjustable orifice spa jet is provided for use in a spa, therapeutic bath, and the like, wherein the spa jet supplies a diverging annular flow stream of mixed air and water. The spa jet includes a housing defining a chamber with a cylindrical discharge outlet at one end and a pressurized water and an air inlet at the opposite end. A nozzle includes a hollow eyeball fitting mounted pivotally within the chamber and defining a venturi section for admixture of air and water. The nozzle further includes a diverging annular discharge flow path for discharge flow of the air-water mixture to the spa. In the preferred form, the nozzle is directionally adjustable from within the spa and includes curved swirl vanes to impart a swirling action to the fluid flow for improved massage action. The preferred nozzle further includes an adjustment knob accessible from within the spa to variably select a desired air-water mixing ratio.