An apparatus, method and kit for controlling moisture under a hot tub cover comprising a planar sheet of flexible material having a peripheral edge corresponding to the shape of the hot tub cover, a plurality of connectors extending from the peripheral edge adapted to engage with the hot tub cover and at least one aperture through the planar sheet. The method comprising locating a planar sheet of flexible material having a peripheral edge corresponding to the shape of the hot tub cover to an undersurface of the hot tub cover, securing the planar sheet to the hot tub cover with a plurality of connectors extending from the peripheral edge adapted to engage with the hot tub cover, and draining moisture on a top surface of the planar sheet through at least one aperture through the planar sheet. The may be secured to a hot tub cover.

Systems, apparatus and methods for providing air and water to hot tub jets. The present teachings include jet assemblies, manifold assemblies, and related components, as well as methods of assembling hot tubs involving these components. In some cases, the present teachings describe the use of dual extrusion tubing to route air and water through adjacent, connected fluid conduits. In some cases, the present teachings describe a press-and-click method of connecting various components.

Swimming pool or spa gas heaters, cabinets, water header manifolds, and heat exchangers therefor are provided in accordance with the present disclosure, including: gas heaters having an air gap between a cabinet and combustion chamber to reduce heat transfer to sides of the cabinet; gas heaters having a user interface that is repositionable on a top panel; gas heater cabinets including a removable top panel that can be hung on a side panel; gas heaters having a built-in dual junction box; gas heaters having a top-accessible igniter and burner that are interlocked to maintain positioning thereof; adaptable water manifolds including connectable inlet and outlet fittings that adjust effective inlet and outlet positions; heat exchangers having a plurality of tube-and-fin subassemblies arranged in a semi-circular configuration; and water manifolds including internal cartridges that divide the water manifold into a plurality of chambers for improved circulation through a heat exchanger are disclosed.

Adjustable seating devices for use in a hot tub may include multiple panels that move relative to one another and/or relative to the hot tub frame to adjust between positions. In some embodiments, one or more panels of the adjustable seating device may include jets. The adjustable seating devices may be adjusted manually, hydraulically, air-actuated, or electronically.

A spa apparatus may comprise a cart, a magnifying lamp, a phototherapy mask, a bed, and a bathtub. A computer, a storage battery, and a communicator are electrically connected and installed inside the cart, and the cart is electrically connected to a power outlet and a display, which enables the cart to be moved and used not limited by the location of power supply. Moreover, the cart has a drawer and a spacing for the storage of beauty products and tools, and through sequentially connecting to a front arm, a rear arm, and a base, the phototherapy mask is configured to be used in different angles and to be held above or in front of a user's in a preferable height.

A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade.

A local feature controller for pool and spa equipment is provided. The local feature controller can be pre-programmed to selectively control operation of devices near the local feature controller, namely, a valve actuator, water fountain, pool light, landscaping light, etc. The local feature controller can operate autonomously, or under the control of the central controller. The local feature controller could include a liquid crystal display (LCD) and associated user input keys for allowing a user to interact with and control the controller. The local feature controller could be buried underground, and it could be powered by one or more local power sources, namely, a rechargeable battery, line-level (AC) power, a solar panel, or a liquid turbine installed inline with a return line from the pool's filtration system.

The present invention is directed to methods and apparatus for tempering the temperature of a liquid in a fluid conducting system. More particularly, some embodiments of the invention relates to tempering the temperature of water supplied to a fixture from a water heater in a fluid conducting system. The system can include a heater for heating the fluid and a diffuser for slowing the rate at which water provided to a decontamination fixture is heated.

Systems, apparatus and methods for providing air and water to hot tub jets. The present teachings include jet assemblies, manifold assemblies, and related components, as well as methods of assembling hot tubs involving these components. In some cases, the present teachings describe the use of dual extrusion tubing to route air and water through adjacent, connected fluid conduits. In some cases, the present teachings describe a press-and-click method of connecting various components.

A hot tub plumbing system including a plurality of water pumps respectively provided at different sides of a hot tub having a plurality of jets, and a plurality of manifolds each having an intake port coupled to one of the water pumps, and each configured to have a plurality of output ports respectively connected by tubing to one of the jets of the hot tub.