A lift assembly for a spa cover includes a lifting arm having a first end pivotally connectable to the spa cover and a second end pivotally connectable to a base of a spa, the connection of the second end of the lifting arm with the spa housing defining a pivot point, and a lift-assist device having a first end configured for coupling to the base at a point substantially directly below the pivot point and a second end operatively connectable to the lifting arm. The lift-assist device is configured to exert a generally upwards biasing force on the cover when the cover is received atop said spa.

A water spraying device and an above-ground pool including the water spraying device are provided. The water spraying device includes: a sprayer assembly having a water inlet end, a water outlet end, and a first magnetic element disposed on the water inlet end; and a mounting assembly including a first end, a second end in fluid communication with the first end, and a second magnetic element disposed on the first end of the mounting assembly. The mounting assembly defines therein a water passage to the sprayer assembly. The first magnetic element is mutually attractive to the second magnetic element such that the water inlet end of the sprayer assembly and the first end of the mounting assembly are detachably connectable via the first magnetic element and the second magnetic element.

The present invention provides a sheathed frame pool, comprising a support frame composed of a plurality of interconnected support components; a pool liner comprising a pool bottom and a pool wall connected to an outer edge of the pool bottom and extends upward, an upper edge of said pool wall being hanging on said support frame and being disposed on an inside of said support frame, and at least one sheath disposed on a junction between at least two of said plurality of interconnected support components. The sheathed frame pool of the present invention has a simple structure, a low cost and convenient installation. Sheaths are respectively provided at the junction of a horizontal side pipe and a T-shaped pipe joint of the frame pool and the junction of a support pipe and the T-shaped pipe joint, which can effectively overcome the defect of rust generation on the pipe body caused by the susceptibility to wear of the coating at an outer surface of the horizontal edge pipe and the support pipe due to frequent frictions between the horizontal side pipe and the T-shaped pipe joint and between the support pipe and the T-shaped pipe joint during the installation or use of frame pools in the prior art.

The invention discloses a non-pneumatic pool with inclined supports, which comprises a pool, wherein the pool includes a first hard sandwich, a first soft inner wall and a first soft outer wall. An outer side of the pool is provided with inclined supports, which include a second soft outer wall, a second soft inner wall and a second hard sandwich. The first soft outer wall of the pool is fixedly connected to a soft top portion of the inclined support through a first inclined support connection. When the non-pneumatic pool is in used, the whole pool is supported from the sides; multiple inclined supports form stable triangular structures with the pool walls to ensure the stability of the pool during use. Meanwhile, the inclined supports can be tightly attached to the pool walls during storage, which can save space and has strong practicability.

An immersion platform includes a dome configured to display a predetermined scene. The dome includes an outer perimeter. A plurality of sensory accessories are configured to stimulate at least one sense of a user. The sensory accessories include at least one of an air blower module, a lighting module, an audio module, a scent module, a haptic vibration module, a temperature module, a floor module, and brain stimulation features. A controller is configured to display the predetermined scene on the dome and to activate the plurality of accessories according to a predetermined timeline.

An immersion platform includes a dome configured to display a predetermined scene. The dome includes an outer perimeter. A plurality of sensory accessories are configured to stimulate at least one sense of a user. The sensory accessories include at least one of an air blower module, a lighting module, an audio module, a scent module, a haptic vibration module, a temperature module, a floor module, and brain stimulation features. A controller is configured to display the predetermined scene on the dome and to activate the plurality of accessories according to a predetermined timeline.

The invention is an assembly of prefabricated metal receptacles forming a swimming pool and a method for constructing the assembly. Among other features, the assembly is characterized by guided or unguided clamping structures that allow on-site construction without requiring on-site welding or access to the bottom or interior of the assembly.

A modular swimming pool includes a precast base unit and a precast riser unit that can be assembled at an installation site to define an interior volume in which a human can swim. The precast riser unit is secured to the base unit. The upper surface of the precast base unit and at least one internal surface of the precast riser unit define the interior volume of the modular pool when the precast base unit and the precast riser unit are secured together. A modular swimming pool assembly is also provided. A method of assembling a modular swimming pool is also provided.

The invention relates to a system for the ionisation of water by electrolysis, for swimming pools, operating by means of mechanical kinetic energy of the water driven from the filtration system of a swimming pool. The invention relates to a system for the ionisation of water of swimming pools or tanks by electrolysis. Said pools or tanks must be provided with a water circulation system. The system can be easily installed in all types of swimming pool without affecting the original character thereof, and uses an autonomous and safe source of energy, the electric power being generated by the kinetic energy accumulated in the water, produced by the driving system for the filtration of the swimming pool water. This energy is used both for the generation of electricity used in the production of ions by electrolysis, and as a source for indicating operation. Kinetic energy is also used as a source of energy for the element for actuating the electrode cleaner.

[Problem to be solved]

To provide a wave making apparatus for surfing that can make a so-called tubular curling wave suitable for surfing and in which a breaking portion and about to break portion are arrayed in a line.

[Solution]

The wave making apparatus comprises: a water carrying bucket 110 opened at the front, including a bottom plate and a side surface plate, and capable of holding water in a portion of an inner space thereof; a supporting structure 120 that supports the water carrying bucket 110; and a transmission apparatus 130 that moves the water carrying bucket 110 forward at a predetermined speed. The water carrying bucket 100 supported by submerging the water carrying bucket 110 under waterline of the pool such that the front of the water carrying bucket 110 faces the play area of the pool. The transmission apparatus 130 moves the water carrying bucket 110 forward along a track extending forward the play area with the water carrying bucket 100 kept below the waterline. The water held in the water carrying bucket 100 is carried forward and launched, and thereby an isolation traveling wave suitable for surfing is formed.