An occupant-actuated massager for a hydrotherapy vessel. The massager jet has an actuation point at which the occupant applies force to cause the pressurized water to flow therethrough and provide a massage via a shuttle. A valve piston is actuated to open and close based on the application of force to the actuation point. Optionally, a venturi can be used to introduce air into the water flow to provide further massage.

Dispenser (1) for liquids comprising an applying nozzle constituted by a bell-shaped body (2) extending along a central axis (A) and provided, at the bottom, with an annular collar (3) and, at the top, with a convex cap (4); the bell-shaped body (2) having a first axial hole (5) whose cross-section decreases from the collar (3) towards said cap (4); a valve (7) for nebulizing the solution being housed inside the first hole (5) in a matching manner; an expansion device (9) being provided at the exit of said first hole (5).

A bathing system with a molded shell has hollows in the shell. A module with internal water and air chambers is installed in each hollow with jets mounted upon the front jet plate of the module. The module is of simple construction that is mounted in a hollow and is removable and interchangeable for easy upgrading and repair of the bathing system.

A bathwater circulating system has a pump operable to draw fluid in at an intake port and expel it under pressure at an output port. Water- and air-supply conduits feed water and air to the intake port at a rate determined by a flow-restricting air-intake valve so that the pump mixes the water and the air, pressurizes the mixture and thereby dissolves the air in the water, and expels the air/water mixture at the output port. A pressure-reducing valve is connected by an output conduit that extends from the output port to the pressure relief valve and conducts the water/air-bubble mixture from the pump to the pressure-reducing valve without separation of the air from the water and such that the mixture is at least partially depressurized at the pressure-reducing valve such that the air forms microbubbles in the water.

A sprayer configured to provide an air-water mixture to a pool or spa. The sprayer includes an outlet module for spraying an air-water mixture into a water cavity of the pool, a suction module for suctioning ambient air into the outlet module, and a connecting pipe that connects the outlet module and the suction module. The sprayer may be concealed within an inflatable chamber of the pool.

A bathtub massage nozzle with switch function and good massage effect is provided. When in use, by aligning a core seat water inlet hole with a water inlet, water enters the nozzle core seat from the water inlet, and at the same time, the air is introduced from an air inlet, so that the air reaches a closed air cavity, and then the water flows out from the other end of the nozzle core seat to reach a gap between the nozzle core seat and the nozzle surface cover; at the same time, the gas is also discharged from an air outlet on the side of the nozzle core seat far away from the core seat water inlet hole through the closed air cavity, which reduces the dilution and loss of bubbles in the process of water flow transmission, and enables the water flow to form dense bubbles.

A bathtub massage nozzle with a switch function includes a nozzle body, a nozzle core seat and a nozzle surface cover. The nozzle core seat is provided with sealing rubber rings between a core seat water inlet hole and core seat air inlet holes, and at a side away from the core seat water inlet hole. The sealing rubber rings are compressed against an inner wall surface of the nozzle body, so that both ends of the nozzle body are hermetically connected, thereby forming a sealed air cavity with a better airtightness. When air flows in from the air inlet, the air entering from the air inlet passes through the air cavity and is mixed with water through the core seat air inlet holes, so that the Venturi effect is enhanced, and the air can have a greater acceleration and pressure, thereby creating more bubbles and stronger massage effect.

A jet nozzle includes a single-piece body having a water inlet with a first inlet channel coaxial with a first inlet axis, a gas inlet with a second inlet channel coaxial with a second inlet axis, and an outlet coaxial with an outlet axis, the single-piece body defining a fluid passageway from the first inlet channel to the outlet. A channel wall having a water channel is positioned in the fluid passageway between the first inlet channel and the outlet, the water channel being coaxial with the outlet axis and having a diameter that is smaller than a diameter of the first inlet channel. The second inlet axis is substantially perpendicular to and intersects the outlet axis at a point within the water channel.

One aspect of the present invention is a jet assembly housing top for helping an applicable jet assembly dispense or eject a fluid and a large amount of bubbles to a setting. Another aspect is a jet assembly for dispensing or ejecting a fluid and a large amount of bubbles to a setting. A further aspect is a fluid pump that includes a jet assembly for dispensing or ejecting a fluid and a large amount of bubbles to a setting. Each aspect includes an air tube that draws or pulls in air from outside a setting when in use so that the applicable jet assembly is able to dispense or eject a fluid and a large amount of bubbles to a setting. An embodiment of a jet assembly housing top is a two-piece device comprised of an outer, larger top or cover and an inner, smaller top or cover.

A hot tub wall jet nozzle includes a nozzle body and a nozzle core seat. Water flows from the water inlet into the water flow channel in the nozzle body. Air enters through the air inlet of the nozzle body and reaches the first air accommodating cavity, then flows from the first air accommodating cavity to the second air accommodating cavity, and the air from the second air accommodating cavity is then mixed with the water in the nozzle core seat at the water outlet under the Venturi effect, and the mixed water and air flow is finally discharged through the water outlet. This structural arrangement allows for reduced dilution and loss of air bubbles during water flow transmission. The Venturi effect produced in this nozzle is capable of generating a greater volume of air ejection, thus enhancing the strength and effectiveness of the massage.