A pump unit for a prefabricated swimming pool, the unit having a pump wall panel and a mount connected to or integral with the pump wall panel. There is also a pump located or locatable at the mount. The arrangement is such that when the pump unit is in use the pump is able to drive a current of water through the pump wall panel into a pool sufficient to enable on the spot swimming inside the pool.

There is provided a swim-in-place spa, comprising a basin for containing water, a circulation subsystem having a primary conduit extending from an inlet in the basin, a pump fluidly connected to the primary conduit to pump water from the inlet, a swim-in-place jet affixed to the basin, and a secondary conduit extending from the pump to the swim-in-place jet, in operation the pump inducing a flow of water toward the swim-in-place jet. The swim-in-place jet has a nozzle and a diffuser downstream of the nozzle relative to the flow of water, a nozzle outlet smaller than a diffuser inlet, the nozzle outlet and the diffuser inlet disposed in a spaced-apart relationship defining a gap for receiving a flow of entrained water. The circulation subsystem is configured for creating a water jet matching a cross-section of a swimmer.

A countercurrent swimming system for swimming pools or swimming baths comprises a housing box which has at least one water inlet opening and at least one water outlet opening, a propeller for generating a water flow, which propeller is arranged in a flow channel, the flow channel opening into the at least one water outlet opening downstream of the propeller and hydraulically communicating with the at least one water inlet opening upstream of the propeller, a drive motor for the propeller. The countercurrent swimming system includes the drive motor arranged outside of the housing box and in that the propeller and the drive motor are coupled to one another via a magnetic coupling.

Aspects of the present disclosure involve hydraulic systems and methods for altering a flow of a body of water, such as a river, channel, and/or other flowing or uncontained bodies of water. In one aspect, a hydraulic system provides a velocity barrier for the impedance of aquatic organism migration. More particularly, the velocity barrier may be adapted based on the swimming capabilities of one or more aquatic organisms to impede migration. The aquatic organism may be one or more species of fish, such as species sea lamprey (Petromyzon marinus). The example implementations shown and described herein reference the restriction of the sea lamprey. However, it will be appreciated that other aquatic organisms could be restricted by the presently disclosed technology, for example, with different hydraulic targets depending on swimming capabilities.

A swim in place system and method are provided. The system comprises a swim in place pool, at least one sensor, at least one pump associated with said at least one sensor, at least one processor, and a memory comprising instructions which when executed by the at least one processor configure the at least one processor to perform the method. The method comprises receiving object location data from at least one sensor, and actuating the at least one pump associated with the at least one sensor when the object is positioned inside a set perimeter within said swim in place pool. The object positioned in a swim in place pool.

Provided herein are systems and devices for detecting the position of an object (e.g., a swimmer) within a pool and adjusting the rate of flow produced by an swimming flume system to maintain the object's position within the pool.

Systems and methods for detecting gestures of a swimmer in an aquatic environment such as a flume pool. In one embodiment, a pool system includes a set of cameras, one of which is overhead camera positioned above the water in the pool to capture images of a swimmer. The system also includes computer processors, such as a GPU, CPU, and game engine which implement a computer vision platform. The processors are configured to receive images from the cameras, determine the swimmer's body position from the images, detect a defined gesture in the swimmer's body position, and in response to detecting the defined gesture, invoking a corresponding control operation of the flume pool, such as controlling water flow through the pool or updating an interface display which is projected onto the interior surfaces of the pool.

Systems and methods for providing a distortion-free pool-surface display beneath a swimmer. In one embodiment, projectors are positioned below a water level at opposite walls of a pool, and are configured to project images to a display surface at the bottom of the pool beneath a swimmer. A camera is used to view images projected by the projectors and to provide corresponding image data to an image correction platform on a graphics processing unit (GPU). The image correction platform identifies distortions in the images, generates image corrections that counter the identified distortions, and applies the corrections to subsequently projected images. The image correction platform also generates image adjustment that cause overlapping portions of the projected images to match seamlessly. The projected images may provide immersive experiences, coaching/training interfaces or other interactive displays.

An adjustable support for a provided swimming machine includes a movable assembly and a fixed assembly for adjusting the height of the provided swimming machine. The movable assembly is fixedly mounted to the provided swimming machine. The fixed assembly is attached to a pool wall of a provided swimming pool and selectively coupled to the movable assembly. One of the movable assembly or the fixed assembly includes a plurality of engaging portions, and the other of the movable assembly or the fixed assembly includes a limiting member that mates with at least one of the plurality of engaging portions. The movable assembly is switchable between a locked position and an unlocked position. The limiting member fixedly engages at least one of the plurality of engaging portions in the locked position. The limiting member is disengaged from the at least one of the plurality of engaging portion in the unlocked position, thereby providing for the movable assembly to move vertically relative to the fixed assembly.

In one aspect, a swim 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.