A salt water chlorinator assembly along a closed loop water circuit incorporates a chlorinator cell subassembly and a flow switch subassembly into respective fluidly connected chlorinator assembly housing interior portions. The chlorinator cell subassembly includes an electrolysis cell controlled by a chlorinator printed circuit board. The flow switch subassembly includes a flow sensor mounted upon a printed circuit board assembly (PCBA). A flow switch cable selectively attaches to a PCBA connector. Water flow rate data generated by the flow switch sensor, communicated via an external controller to a smart circulation pump, is used to enable automatic adjustment of the pump speed based upon the flow rate data. The external controller may further alert an end user of undesirable flow rate deviations due to a condition (e.g. a clogged pump/skimmer basket and/or dirty filter) along the closed loop circuit requiring attention.

A chlorinator system includes a swimming pool chlorinator, at least one transceiver that provides short-range communication between the swimming pool chlorinator and at least one pool and spa system component, a processor, and a non-transitory computer-readable storage medium containing instructions that, when executed by the processor, cause the processor to perform operations. The operations include receiving a short-range wireless communication request originating from the at least one pool and spa system component. Additionally, the operations include establishing a short-range wireless communication link with the at least one pool and spa system component. Further, the operations include receiving a control request from a remote computing device with instructions to control the at least one pool and spa system component and controlling the at least one transceiver to wirelessly transmit control signals to the at least one pool and spa system component.

A swimming pool filter element capable of automatically dosing. The swimming pool filter element includes a folding filter element and a doser filter element. The folding filter element includes a filter membrane and end covers, the end covers each having an upper end cover and a lower end cover. A wrench cover is arranged at the upper end of the upper end cover. The doser filter element includes a doser end cover, a doser lining and a doser shell. The doser filter element is added into the folding filter element, so that a water flow needing to be filtered firstly passes through the filter membrane of the folding filter element, solid large-particle impurities are filtered out, then the water flow enters the doser filter element and makes contact with sterilization tablets placed in the doser filter element, the tablets are dissolved, and finally water with dissolved tablets is discharged into a swimming pool.

A system for dispensing water treatment compositions into a pool, spa, or other body of water is disclosed, which system provides a visible cue that the water treatment is properly dispersing and also provides a visible cue when the desired amount of water treatment has been dispensed. The system comprises a dispenser and the water treatment composition contained within the body of the dispenser, which dispenser and which system provides a readily visual cue that when the water treatment dose has been fully, or in some cases mostly or partially dispersed. For example, the dispenser sinks when fully dosed and resurfaces when empty, and in particular embodiments the water treatment generates visible gas bubbles and/or a color stream as the treatment dissolves.

A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes. The complex preferably has a controlled public access, thereby allowing entrance upon payment of a fee.

A water treatment system includes a water mixing unit adapted to promote water turbulence, an input line having an upstream end adapted to be in fluid communication with a body of water to be treated, and a downstream end in fluid communication with the water mixing unit. The system includes an ozone injector adapted to be connected in fluid communication with an ozone gas generation system. A branching line is in fluid communication with the input line and the ozone injector and an ozone supply line is in fluid communication with the ozone injector and the input line. A bypass control valve is in fluid communication with the ozone supply line and the water input line and is adapted to be selectively switched between an open position and a closed position, wherein water is prevented from flowing through the branching line and the ozone supply line when the bypass control valve is in the closed position.

A system and methods of remotely monitoring and controlling a pool controller for a pool or a spa via one or more remote computing devices is provided. In some embodiments, a remote user can be provided with information about the pool or the spa. The remote user is provided with an ability to remotely optimize a performance of the pool or the spa, including remotely adjusting a chemistry of the pool or the spa, remotely activating a heater of the pool or the spa, and/or remotely activating a pump of the pool or the spa.

Assemblies designed to facilitate detection of water flow in low water flow situations. In some embodiments, the assembly includes a channel that narrows from an inlet end of the assembly to an outlet end of the assembly to increase the velocity of water flowing through the channel. In some embodiments, the assembly may also include a water delivery mechanism that delivers water flowing through the channel to a flow sensor and enables the detection of water flow, even in low flow situations.

A retrofit assembly for a chlorinator has a cylindrical disk portion having a lower region for insertion into a cylindrical opening of a chlorinator cylinder, a groove for receipt of a first O-ring and a flange at the top to abut the cylindrical opening, and an upper cylindrical member attached to the lower region having exterior threads thereon, a central bore passing through the cylindrical disk portion for passage of chlorine tablets into the chlorinator cylinder, a cylindrical collar with threads for engagement with threads on the chlorinator cylinder, the collar configured to fit over the lower region of the cylindrical disk portion, and a cap having a cylindrical section with internal threads for engagement with the exterior threads of the upper cylindrical member to cover the central bore of the upper cylindrical member, wherein a recess formed in the cap has a bottom for receipt of a second O-ring.

Systems and methods for controlling chlorinators for pools and spas are provided. A controller communicates with a processor positioned within a replaceable cell cartridge of a chlorinator, to allow for remote control and diagnosis of the chlorinator and/or cell cartridge. The cell cartridge stores, in non-volatile memory on board the cartridge, one or more parameters associated with the cartridge. The controller can obtain this information from the processor of the cell cartridge, and can use same to configure operation of the chlorinator. Information relating to remaining cell life can be updated by the controller and stored in the non-volatile memory of the cell cartridge. Electrical and software-based mechanisms are provided for ensuring operation of only compatible cell cartridges with the chlorinator. A system for remotely diagnosing errors associated with the chlorinator is also provided.