A floating and energy-autonomous device (1) configured to dispense a solid compound (2) into a volume (3v) of liquid. The device (1) includes a reservoir (9) of solid compound (2), and a pump (13) configured to generate a circulating flow of the liquid (3) coming from the volume (3v) of liquid and passing through the reservoir (9) before returning to the volume (3v) of liquid. The device (1) includes a sensor (17) configured to generate a sensor signal indicative of a parameter of the volume (3v) of liquid or of a gaseous environment (4) of the device (1), and/or an antenna (18) configured to receive a radio signal, and to generate an antenna signal. The device (1) includes a microcontroller (19) configured to command the pump (13) and to regulate the circulating flow rate of the liquid (3) on the basis of the sensor signal and/or of the antenna signal.

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.

The invention generally relates to methods and systems for adding chemicals to a body of water through a skimmer basket in a strainer well associated with the body of water.

A system for the removal of volatile products resulting from the disinfection of water in a swimming pool, including a main channel arranged at an edge of a swimming pool and to collect overflowing water from the pool, air suction holes distributed along the main channel, the suction holes facing the internal volume of the main channel and being arranged at a height above the free water surface in the main channel, ventilation device configured to generate a suction flow of air from the suction holes. The system includes an air insufflation device arranged in the main channel at a height below the free surface of the water in the main channel, the air insufflation device generating a flow of air to strip the gases dissolved in the water in the main channel, from the liquid phase to the gaseous phase.

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 floating water jet for spraying chlorinated water at water surface of a pool is disclosed herein. The floating water jet includes a cylindrical body having a closed end and an open end, an internal wall within the cylindrical body defining a sealed air chamber within the cylindrical body adjacent the closed end, the sealed chamber providing buoyancy to the cylindrical body such that the cylindrical body floats on the water surface of the pool with a longitudinal axis of the cylindrical body being parallel to the water surface. An internal chamber is provided within the cylindrical body between the open end and the internal wall for receiving the chlorinated water. An end wall is sealed to the open end, the end wall including a central inlet opening adapted for connection to an outlet end of a floating pool hose, and a plurality of outlet openings in the end wall arranged concentrically about the central opening. Chlorinated water from the pool hose is directed into the internal chamber via the central inlet opening and exits the internal chamber via the plurality of outlet openings to direct jets of the chlorinated water in a direction parallel to the water surface.

A water quality management system for a water installation containing water. In some embodiments, the system includes a water quality measurement module adapted to monitor the water quality of the water in the water installation and to send water quality information to a controller; a chemical dispensing module adapted to dispense chemicals directly into the water installation in response to signals from the controller; and a communication mechanism configured to provide communication among the controller, the water quality measurement module, the chemical dispensing module and a user.

A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex. The lagoon includes a surf feature and surrounding the lagoon are entertainment, educational, sports, and commercial facilities. The complex has a controlled public access and provides 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 having a surf feature. 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 quality management system for a water installation containing water. In some embodiments, the system includes a water quality measurement module adapted to monitor the water quality of the water in the water installation and to send water quality information to a controller; a chemical dispensing module adapted to dispense chemicals directly into the water installation in response to signals from the controller; and a communication mechanism configured to provide communication among the controller, the water quality measurement module, the chemical dispensing module and a user.

The present invention discloses a swimming pool chemical dispenser, comprises a main body, an upper cover which covers the upper opening of the main body, an accommodating cavity for storing tablets is formed inside the main body; the swimming pool chemical dispenser further comprises a tablet clamp; the clamping end of the tablet clamp penetrates downward through the upper cover and abuts against the tablets, and the tablet clamp is provided with scales; the tablet clamp descends along with the dissolution of the tablets and displays the amount of residual chemical in the main body. The amount of residual chemical can be visually and reliably determined from the scales on the tablet clamp for timely refill; the tablet clamp is placed on the main body, thus makes it convenient for the user to replace the tablets bare-handed without touching the tablets, which is much safer and more environmentally friendly.