A pool includes a main pool body defining an inner cavity, and a pillar with in the inner cavity which cooperates with the main pool body to define an annular lane therebetween. The pillar provides the pool greater functionality that extends beyond the scope of the traditional pool, such as by enabling a separate pool, a platform, or other structures to coexist with the annular lane within the inner cavity. Further, a flow generating device may be provided to generate a circulating water flow within the pool that moves around the annular lane.

Various embodiments provide a stackable deformable electrical connector system including a plug body and a connector body each having at least one of studs and jacks with angled and/or misaligned axes. A deformation of one or more of a plug body, studs, jacks, and a connector body or another stackable connector is created when plugging together the angled studs and jacks. The deformation creates resultant forces between the studs and jacks for electrical contact. The connectors may integrate deformable bars in the connector body, locking features and features to ensure polarity. The studs and jacks may be solid metal corrosive-resistant parts, such as titanium, Hastelloy, or Inconel.

Disclosed is a water flow control device for swimming training that includes a swimming training device and a main water inlet pipe and a main water outlet pipe. The swimming training device includes at least a swimming pump. The main water inlet pipe and the main water outlet pipe are connected with the swimming pump. The water inlet of the main water inlet pipe is communicated with a swimming pool and a water outlet of the main water outlet pipe is connected with a jet nozzle. A filter device includes at least a filter pump, a filter sterilization device. A filter water inlet pipe and a filter water outlet pipe are connected with the filter pump. The filter water inlet pipe is communicated with the swimming pool through the filter sterilization device and the filter water outlet pipe communicated with the main water inlet pipe.

The invention relates to a Surf Pool wherein a portion of the beach is provided with a wave catch basin. With the wave catch basin extending along the length of the beach, the wave catch basin will allow water to go over an infinity edge and settle in the wave catch basin, wherein wave energy backflows are eliminated and rip currents are avoided. With the wave catch basin extending along the beach side of the surf pool, the water that is collected in the wave catch basin and by pumping water out of pipe fittings or creating positive suction into pipe fittings, alters the flow of the rip current, thereby altering the wave formation characteristics. As the rip currents enter the rip current flow channels on both sides of the surfing reef, water can be suctioned down through return pipes or pumped in any direction along the surf pool bottom to stop the rip currents in the rip current flow channels, which helps the breaking waves from becoming distorted as they break.

A device to aid a swimmer in training includes a piece of swimwear and a plurality of flow resistance increasing structures attached to the swimwear. The flow resistance increasing structures include a fill material constructed with a polymerized, monofilament material. The polymerized, monofilament material can include tulle.

A resistance swim training device is described. The resistance swim training device includes a waist harness configured to secure around a waist of a swimmer. The resistance swim training device also includes a spacing bar configured to facilitate moving and rotation motions of the swimmer. The resistance swim training device further includes two or more cords that connect the spacing bar and the waist harness.

The utility model provides a wave-making pump with a novel directional structure, comprising a casing, a motor, an impeller and a fixing device, wherein the motor is fixed in the casing; the impeller is arranged at the output end of the motor; the fixing device is used for fixing the casing; the casing comprises a rear casing and a diversion protective cover arranged on the front side of the rear casing; openings are formed in the two ends of the diversion protective cover; a hollow groove helically extending is formed in the peripheral surface of the diversion protective cover. As the hollow groove helically extending is formed in the peripheral surface of the diversion protective cover, the water flow produced by wave-making pump with the novel directional structure is wider, softer and more uniform, and the aquatic environment closer to the natural ecological water wave is convenient to create.

An apparatus to quickly position a start assist device for backstroke swimmers and remove said start assist device once the apparatus detects or is signaled that the swimmer has left to prevent injuries and obstructions caused by the start assist device. A mechanical embodiment of such an apparatus and a motorized embodiment of such an apparatus with a data input system to position the start assist device according to the individual swimmers needs and means to signal the start event are disclosed.

An apparatus to quickly position a start assist device for backstroke swimmers and remove said start assist device once the apparatus detects or is signaled that the swimmer has left to prevent injuries and obstructions caused by the start assist device. A mechanical embodiment of such an apparatus and a motorized embodiment of such an apparatus with a data input system to position the start assist device according to the individual swimmers needs and means to signal the start event are disclosed.

In one aspect, a swimjet system may include a reverse thrust system worn by a swimmer proximate the frontal upper torso. The system provides a variable amount of reverse thrust such that the user can swim-in-place or make gradual forward progress. Importantly, this may enable a user to effectively extend a small residential pool to serve the same function as a twenty-five meter pool typically found at commercial or government facilities. The system also provides laminar current under the user while swimming, which solves the problems of leg drop, the need to out-kick the arm stroke, and turbulence and wave action around the head associated with conventional swim-in-place devices. Still further, in certain embodiments the system provides a relatively strong current in the region of the arm stroke moving away from the swimmer which provides enhanced resistance for proficient swimmers.