A non-chemical sanitation system for a body of water comprises a floating base, an internal hydro-electric power generator, and one or more sanitizing mechanisms electrically powered by the hydro-electric power generator, where the hydro-electric power generator derives its energy from water pressure produced by a pool pump. In some embodiments, the one or more non-chemical sanitizing mechanisms comprise one or more ultraviolet LED lights. In some embodiments, the one or more non-chemical sanitizing mechanisms comprise one or more ionizers. In some embodiments, the system is connected to a filter pipe and filter of a pool and the hydro-electric power generator is placed within the path of water flowing to the pool filter in order to generate power and power the one or more sanitizing mechanisms.

An adapter for a pool cleaning system is provided. The adapter includes a base member having a top and a bottom surface. The adapter also includes six upper ports coupled to the top surface of the base member, each upper port including an upper aperture extending through the upper port and through the base member. The adapter further includes five lower ports coupled to the bottom surface of the base member, each lower port including a lower aperture extending through the lower port and through the base member. In some embodiments, four of lower ports are in fluid communication four of the upper ports and one of the lower ports is in fluid communication with two of the upper ports.

A non-chemical sanitation system for a body of water comprises a floating base, an internal hydro-electric power generator, and one or more sanitizing mechanisms electrically powered by the hydro-electric power generator, where the hydro-electric power generator derives its energy from water pressure produced by a pool pump. In some embodiments, the one or more non-chemical sanitizing mechanisms comprise one or more ultraviolet LED lights. In some embodiments, the one or more non-chemical sanitizing mechanisms comprise one or more ionizers. In some embodiments, the system is connected to a filter pipe and filter of a pool and the hydro-electric power generator is placed within the path of water flowing to the pool filter in order to generate power and power the one or more sanitizing mechanisms.

Methods and apparatus are disclosed for an improved underwater vacuum cleaning system. Urging elements are provided on a vacuum head to encourage debris, especially large pieces of underwater debris, to matriculate under the head or otherwise toward the vacuum opening, rather than traveling over the head or otherwise NOT toward the vacuum opening. Various embodiments of engagement elements are disclosed between the vacuum head and a vacuum hose to improve the connection therebetween.

A liquid-submersible vacuum system includes a housing canister enclosing a filtration element and a water pump. Power comes from a power converter that plugs into a standard AC power supply. The vacuum system further includes a diffuser cap and a discharge hose cap, with each providing the vacuum system with a discrete mode of operation.

Exemplary embodiments include a pool cleaner having a body and articulated cleaning member extending from the body. The articulated cleaning member can be pivotally and/or rotatably coupled to the body. The articulated cleaning member can be pivoted or rotated with respect to the body to accommodate changes in the terrain of a pool. A method for cleaning a swimming pool is also provided where a pool cleaner having articulated cleaning members is submerged in a pool and allowing the pool cleaner to traverse an immersed surface of the pool. The method further rotates the articulated cleaning member in response to a difference in an elevation of the immersed surface between the articulated cleaning member and the body.

A removable retention device for a swimming pool vacuum or pressure hose. The retention device holds the hose along a side wall of a swimming pool when there is a desire to keep the hose out of the way of a swimming pool user. The retention device is dimensioned to be placed over an edge of the swimming pool, either on a pool deck or over a wall of the swimming pool, and the geometry of the retention device is such that it captures the hose against the side wall of the pool. When restraining the hose, the retention device is situated such that the restrained hose is located at or below a waterline of the swimming pool. The retention device can remain in place or be removed from the pool when the hose is in use, after freeing the hose from the retention device.

Methods and apparatus are disclosed for an improved underwater vacuum cleaning system. Urging elements are provided on a vacuum head to encourage debris, especially large pieces of underwater debris, to matriculate under the head or otherwise toward the vacuum opening, rather than traveling over the head or otherwise NOT toward the vacuum opening. Various embodiments of engagement elements are disclosed between the vacuum head and a vacuum hose to improve the connection therebetween.

The invention relates to a power lead for a swimming pool cleaning robot. Said power lead comprises a rotary connector and a buoyancy means supporting said rotary connector. An upper part of said buoyancy means is a cap shaped to slide under a swimming pool cover, under the effect of a traction exerted by the swimming pool cleaning robot on the buoyancy means through the power lead.

A universal device for capping and mounting a motor within a motorized pool cleaner housing that allows a motor pump to be installed in different brands of pool cleaners and used at increased depths underwater. An improved motor can seal has an outer seal having a first diameter, an inner seal having a second diameter and an intermediate seal connecting the outer seal to the inner seal where the inner seal is tapered towards the distal end of the inner seal. An improved motor shaft is used having a head section, a body section and a seal area, wherein the seal area is hard chrome plated.