Abstract: Systems and techniques to mount equipment in a watertight fashion to a wall. A watertight mount includes a mounting base including a flange and a socket having an interior surface including mating threads. The mount may include a base plate coupled with the mounting base, the base plate defining an opening through which the socket passes. The mount may also include a gasket coupled between the base plate and the mounting base, the gasket defining an opening through which the socket passes, and the base plate may be releasably coupled with the mounting base through a spa wall. The base plate may be coupled with the mounting base using a connector, such as a nut defining a threaded hole that matches securing threads on an exterior surface of a barrel shaped socket in the mounting base.

Abstract: Handheld massagers for providing hydrotherapy and/or vibratory or pulse massage therapy are disclosed, as well as methods for use of such massagers. The handheld massager can be connected, such as by using a single hose, to a primary fluid supply of a pool or spa. The handheld massager may be configured to provide for multiple different gripping positions and may have attachments that can facilitate providing vibratory massage, such as by direct contact with a body part of a user or someone else.

Abstract: Systems and techniques to wirelessly provide audio in a spa. A system includes an audio system coupled with a spa, and a wireless communication system communicably coupled with the audio system and with a remote audio source, wherein the wireless communication system provides audio signals from the remote audio source to the audio system, and a volume of the audio system is controlled locally at the spa without affecting a volume indication at the remote audio source.

Abstract: Systems and methods to filter water. A filtration device for a floodable compartment having a water inlet and a water outlet can include a removable filter for being positioned at or near the water outlet of the compartment, a strainer having a first end and a second end, wherein the first end is configured to at least partially surround the filter near the water outlet, and wherein the second end is configured to contact the compartment at least partially around the filter at a point in the compartment between the water inlet and the water outlet. The filtration device can be implemented as a water filtration system for a pool or spa, where the water inlet can be from the pool or spa, and the water outlet can be to a pump.

Abstract: An apparatus for producing a water feature in a spa/pool/hot-tub (“spa”) is disclosed. The apparatus includes a flume developer having internal dimensions that generate a water pressure from a water flow received from a water source associated with the spa. The flume developer further includes a head assembly having one or more apertures through which the water feature is produced based on the water pressure. The flume developer further includes a flange configured to abut against an outer surface of the spa. The flume developer is interchangeable in a water feature device body connected to the water source. A light source can be provided to illuminate the water feature.

Abstract: Systems and techniques to increase storage space for added features in a spa using a modular spa design. A spa structure includes a compartment defining a location that receives a device to be used in conjunction with a spa, and a surface coupled with the compartment and matching a shape of a skirt of the spa. The surface can form a section of the skirt of the spa when attached to the spa. The skirt section can be attached to the spa by being raised under a lip of the spa and can be secured with battens and screws. The skirt section can form exterior steps providing access to the spa and can have a sinusoidal shape. The skirt section can include an integrated lifting mechanism that serves as a support when in a nested position.

Abstract: Systems and techniques to increase storage space for added features in a spa using a modular spa design. A spa structure includes a compartment defining a location that receives a device to be used in conjunction with a spa, and a surface coupled with the compartment and matching a shape of a skirt of the spa. The surface can form a section of the skirt of the spa when attached to the spa. The skirt section can be attached to the spa by being raised under a lip of the spa and can be secured with battens and screws. The skirt section can form exterior steps providing access to the spa and can have a sinusoidal shape. The skirt section can include an integrated lifting mechanism that serves as a support when in a nested position.

Abstract: System and techniques to movably attach speakers to a spa. A system includes a spa, and a speaker coupled with an exterior surface of the spa in proximity to a location where a spa cover resides when on the spa, the speaker being useable in connection with the spa cover without interference between the spa cover and the speaker.

Abstract: A curvilinear spa frame apparatus and method that provides support to a curvilinear spa shell design, including a frame comprising a top curvilinear rail, a bottom curvilinear rail, and one or more box sections aligned to be within the confines of the curvilinear spa shell providing stiffness for the completed frame. The box sections can include sheets that align with corresponding notches in the curvilinear spa frame increasing rigidity and facilitating alignment of the spa frame components during assembly.

Abstract: Systems and techniques to facilitate lifting and access to compartments, such as spa compartments that contain spa features. A structure includes a base, risers rotatably coupled with an underside of the base, a support frame rotatably coupled with the risers, rollers rotatably coupled with the support frame, and one or more lever-arms rotatably coupled with at least one of the risers, the one or more lever-arms supporting the base when the support frame is in a nested position, and the one or more lever-arms providing leverage during transition from the nested position to an actuated position of the support frame, said transition causing the base to lower and be movable on the rollers.

Abstract: A curvilinear spa frame apparatus and method that provides support to a curvilinear spa shell design, including a frame comprising a top curvilinear rail, a bottom curvilinear rail, and one or more box sections aligned to be within the confines of the curvilinear spa shell providing stiffness for the completed frame. The box sections can include sheets that align with corresponding notches in the curvilinear spa frame increasing rigidity and facilitating alignment of the spa frame components during assembly.

Abstract: Systems and techniques to mount equipment in a watertight fashion to a wall. A watertight mount includes a mounting base including a flange and a socket having an interior surface including mating threads. The mount may include a base plate coupled with the mounting base, the base plate defining an opening through which the socket passes. The mount may also include a gasket coupled between the base plate and the mounting base, the gasket defining an opening through which the socket passes, and the base plate may be releasably coupled with the mounting base through a spa wall. The base plate may be coupled with the mounting base using a connector, such as a nut defining a threaded hole that matches securing threads on an exterior surface of a barrel shaped socket in the mounting base.