A pool water filtration system includes a plurality of skimmer assemblies in fluid communication with a sludge removal assembly and automatically operable to periodically backflush filters of each of the skimmer assemblies to the sludge removal assembly.

A water distribution device for simplified and partially automated maintenance of an artificial basin having a water inlet connected to a pump circulating water from the basin through a parallel configuration of pipes, connectors, servo-valves, a filter, a pump and a control unit. The control unit actuates the servo-valves to selectively pumping the water from the basin in a first flow direction through the filter in a filtering mode, from basin in a second flow direction through the filter in a filter washing mode, and from the basin through the piping without passing through the filter in a recirculation mode.

Embodiments of the invention provide a method, system and computer program product for automated sampling, testing and treating large water basins. In an embodiment of the invention, the method includes storing a plurality of locations of a water basin, where each location includes at least one chemical delivery outlet. The method further includes monitoring water quality for each of the plurality of locations and mapping a water quality value to each of the locations. The method even further includes responsive to the water quality value failing to meet a threshold value in one of the locations, automatically determining an amount of chemical based on the water quality value and delivering the amount of chemical only to the one of the locations through its corresponding chemical delivery outlet.

Filter assemblies are described which may be rolled for use and unrolled for cleaning. Rolling an assembly may form a spiral path for fluid to flow. Fluid also may flow through mesh panels of the assembly unless such panels are obstructed, as by debris.

The present disclosure relates to a heat pump system for transferring heat using a body of water. The heat pump system includes a water pumping system and a heating and cooling loop that directs a working fluid through a heat exchanger where heat is transferred between the working fluid and water from the body of water. The water pumping system includes an inlet line, an outlet line, and a pump. The pump moves the water from the body of water through the inlet line to the heat exchanger then through the outlet line and back to the body of water. A biocide generating device is positioned along the inlet line for providing real-time generation of biocide in the water flowing through the inlet line. A recirculation line directs water from a tap location on the inlet line positioned downstream from the biocide generating device to the water intake.

A method of assembling a skimmer assembly includes providing a housing including a plurality of walls defining a chamber. The method also includes coupling a base member to the plurality of walls. The base member includes a first hub. The method further includes coupling a carriage to the base member. The carriage includes a base wall, a second hub, and a sidewall. The second hub extends from the base wall in a first direction. The sidewall extends from the base wall in a second direction opposite the first direction. The method also includes rotating the second hub within the first hub to change an orientation of the sidewall relative to the housing.

An automated swimming pool chemical dispensing system is disclosed. The automated swimming pool chemical dispensing system operates with a spin-down sediment filter to control the swimming pool chemistry.

The present disclosure provides a pool cleaning robot. The pool cleaning robot includes a body; a filtering box detachably mounted on the body; and an in-position detection mechanism for the filtering box, where the in-position detection mechanism for the filtering box is configured to detect whether the filtering box is mounted in position on the body. The in-position detection mechanism for the filtering box includes a sensing assembly, and the sensing assembly includes a sensing part and a sensing mating part. The sensing part and the sensing mating part are both disposed at a position other than the filtering box, and the filtering box moves, so that the sensing part mates with the sensing mating part to detect whether the filtering box is mounted in position on the body.

A floating dispenser holder having a platform supporting a dispensing cartridge in a dispensing condition and a canopy extending over the dispensing cartridge located on the platform.

An accessory pool filter system prevents larger debris from entering the pool's primary filter and potentially interfering with its operation. The system includes a bucket-shaped body with an inlet near the top, a straining basket inside, and an outlet near the bottom. The inlet is connected to an intake hose, and the outlet is connected to an outlet hose, which in turn connects to the pool's main filtration system. The apparatus uses the suction created by the pool filtration system's pump to draw water through the intake hose and pass it through the strainer before it continues on through the inlet to the pool's main filtration system. As the water passes through the system, larger debris is trapped in the basket, thereby preventing it from clogging up the lines of the pool's main filtration system.