An SPA bathtub and an operating unit therefor are provided. The operating unit includes a gas supply system including an electric gas valve, at least one gas path connecting pipe and an electric gas pump that can be in fluid communication with the SPA bathtub through them. The electric gas valve includes a valve housing defining at least one inner cavity. The valve housing is provided with a gas inlet configured to communicate with the electric gas pump, and at least one gas outlet each provided therein with a moving piston and configured to communicate with corresponding gas path connecting pipe. Each inner cavity is in fluid communication with corresponding gas path connecting pipe via one gas outlet. The electric gas pump cooperates with the electric gas valve such that: when the electric gas pump operates/stops operating, the moving piston is located in a communication position/an off position.

A jet pump has an impeller with a magnet that can be rotated by a shaft having a magnetic drive plate and wherein the impeller and the magnetic drive plate are separated from one another by at least one solid wall surface. The impeller can be located in a pump housing having a base and a cover. The base can have a surface bearing so that the impeller can contact therewith and rotated against the surface of the surface bearing.

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 bathing device for thermotherapy includes, attached to a bathtub, a magnetized hot water production device through which hot water is passed so as to be magnetized and an aeration device that aerates said magnetized hot water.

An inflatable spa is disclosed having improved strength. A water cavity of the inflatable spa may receive massaging air bubbles and/or jetted water.

A SPA bathtub and an operating unit therefore are provided. The operating unit includes a water circulation system including a diaphragm self-priming pump, a peristaltic pump, a water circulation pipeline, and a fluid switch assembly. The diaphragm self-priming pump operates before the peristaltic pump operates normally and stops operating after the peristaltic pump operates normally. During operation of the diaphragm self-priming pump, the fluid switch assembly is in a first operation state, so that water from the interior volume portion sequentially flows through the peristaltic pump, the diaphragm self-priming pump, the fluid switch assembly, and the water circulation pipeline and finally returns to the interior volume portion. During operation of the peristaltic pump, the fluid switch assembly is in a second operation state, so that the water sequentially flows through the peristaltic pump, the fluid switch assembly, and the water circulation pipeline and finally returns to the interior volume portion.

A cold therapy device for use in a water delivery system which is coupled to a mains water supply, the device includes a housing having an inlet for receiving water from a mains water supply, the housing includes at least one cooling module configured to reduce the temperature within the housing to cold therapeutic temperatures, so that, in use, when water is received therein from the inlet, it is cooled to cold therapeutic temperatures. The device further includes an outlet for delivering water from the housing to the user.

A bathing apparatus comprising a whirlpool pump; a heater; an air blower; a drain pump; and an electric module, wherein the electric module is configured to receive electric power from an electric power line and to distribute electric power to the whirlpool pump, heater, air blower, and drain pump, when electric power is distributed to one of the heater or the air blower, electric power cannot be distributed to the other of the heater or the air blower, and when electric power is distributed to the drain pump, electric power cannot be distributed to the whirlpool pump, the heater, and the air blower.

Vertical decompression relaxation device with vertical tank, with access ladders, with handrail and stairs for internal access, and tie rods adjustable fasteners to tie rods, mainly in the treatment of muscle and fascia stiffness.

A water heater includes a first heater, a second heater, and a controller. The controller can enable different operational modes of the water heater, wherein only the first heater operates, only the second heater operates, or both the first and the second heaters operate. The controller can also be configured to enable a hybrid operational mode and a bypass operational mode. Further, in the different operational modes, the controller can direct water flow to at least one of a first conduit coupled to the first heater, a second conduit coupled to the second heater, and a bypass conduit. The controller can be configured to receive input signals relating to environmental conditions around the water heater and/or an aquatic system in which the water heater is installed.