A spa jet replacement system uses a hollow tubular positioning sleeve having an opening located proximate a first end thereof. A spa jet is inserted into the first end of the sleeve and the sleeve is inserted into the nozzle system of a spa until the opening of the sleeve aligns with an air inlet of the nozzle system, thereby positioning the spa jet upstream of the air flow of the spa fluid system. The outside diameter of the sleeve approximates the pipe(s) of the nozzle into which the sleeve is inserted so that the sleeve is friction held in place after insertion. A longitudinal slit may be located on the sleeve for ease of insertion.

A tool for use on safety showers may include a funnel, a drain system, a base, and a height adjustment mechanism. The funnel has an interior with a width wider than a showerhead of the safety shower, so that a showerhead may fit within or seal against the interior of the funnel. The drain system connected to conduct a flow from the funnel. The base supports the drain system and the funnel and may be placed on a floor beneath the showerhead, and the height adjustment mechanism may be coupled to control a height of the funnel and control sealing pressure that the funnel applies to a showerhead.

Disclosed in the present invention is a water circulation pipeline, comprising: an interface pipeline, the interface pipeline comprising a first pipeline and a second pipeline, one of the first pipeline and the second pipeline being provided with water inlets, and the other being provided with a water outlet, the water inlets and the water outlet being used for being connected to a water pool body, the second pipeline being nested in the first pipeline; and a pipeline body having a third pipeline, a first port of the third pipeline being in communication with the first pipeline, and a second port of the third pipeline being in communication with the second pipeline. The present invention can reduce the volumes of the water circulation pipeline and a control box. Also disclosed in the present invention are a control box and a massage water pool.

A hot tub manifold that has been engineered with a plurality of teeth-like raised sections inside the inner diameter of the manifold. As the water travels through the manifold while the hot tub pumps are operating, it travels across the surface of the raised sections creating friction. That friction energy created is thus transferred to the water in the form of heatwhich in turn raises the temperature of the water to the desired set level on the thermostat on the hot tub. Passing the water (generally at high speed) over the raised teeth creates free heat and lowers the amount of time and energy required by the hot tub's element heater to elevate the water to the given temperature.

A hot tub manifold that has been engineered with a plurality of teeth-like raised sections inside the inner diameter of the manifold. As the water travels through the manifold while the hot tub pumps are operating, it travels across the surface of the raised sections creating friction. That friction energy created is thus transferred to the water in the form of heatwhich in turn raises the temperature of the water to the desired set level on the thermostat on the hot tub. Passing the water (generally at high speed) over the raised teeth creates free heat and lowers the amount of time and energy required by the hot tub's element heater to elevate the water to the given temperature.

A lighted jet assembly for through hole mounting to a panel in a bathing installation. In an exemplary embodiment, the assembly includes a jet body configured for mounting in a hole formed in the bathing installation panel. A light receptacle is formed with the jet body, the light receptacle configured to receive a light source element. A jet barrel assembly includes a hollow barrel structure configured for insertion into the jet body channel through the open second end of the jet body. A blind structure includes a hollow cylindrical portion having at a first end a flange portion extending over a limited angular extent, and a second end configured to be secured within the open interior region of the jet barrel structure. The blind structure is fabricated of an opaque material, and configured for rotation with the jet barrel assembly relative to the jet body.

A spa system is provided. A tankless water heater is connected to a water supply line providing water to the tankless water heater and a hot water line for providing heated water from the tankless water heater to a tub. A drain line is connected to the tub for draining water from the tub. A programmable controller operable in a plurality of modes comprising a fill mode in which a tub fill valve in the hot water line is activated to release water to the tub and a drain mode in which a tub drain valve in the drain line is activated to release water from the tub.

An inflatable massage pool comprises a pool body defining an inflatable cavity and a water receiving cavity. A water inlet assembly, located in the inflatable cavity, is configured to provide one of a filtered water flow or a massage water flow to the water receiving cavity. The water inlet assembly includes a water inlet pipe and a water flow guiding device. The water inlet pipe has a water inlet passage in fluid communication with the water flow guiding device for delivering one of the filtered water flow or the massage water flow to the water receiving cavity. The water inlet passage and the water flow guiding device delivers the massage water flow and the filtered water flow into the water receiving cavity in different paths or the same path, thereby reducing welding points on a pool wall, lowering the manufacturing cost, and reducing the difficulty in pipeline arrangement.

This disclosure relates generally to jets for spas and, more specifically, to jets that can have more than one jet hydrotherapy spray mode. The jet can include a selectively rotatable jet head, the jet head having a first jet spray mode and a second jet spray mode. The jet head includes a valve, the valve having a first water inlet and a second water inlet, the valve further comprising a first air channel and a second air channel. The valve is rotatable from a first jet spray mode position in which a water intake is in fluid communication with the first water inlet and an air intake is in fluid communication with the first air channel, to a second jet spray mode position in which the water intake is in fluid communication with the second water inlet and the air intake is in fluid communication with the second air channel.

An inflatable massage pool comprises a pool body defining an inflatable cavity and a water receiving cavity. A water inlet assembly, located in the inflatable cavity, is configured to provide one of a filtered water flow or a massage water flow to the water receiving cavity. The water inlet assembly includes a water inlet pipe and a water flow guiding device. The water inlet pipe has a water inlet passage in fluid communication with the water flow guiding device for delivering one of the filtered water flow or the massage water flow to the water receiving cavity. The water inlet passage and the water flow guiding device delivers the massage water flow and the filtered water flow into the water receiving cavity in different paths or the same path, thereby reducing welding points on a pool wall, lowering the manufacturing cost, and reducing the difficulty in pipeline arrangement.