Abstract: A dispensing assembly having a first body, herein referred to a float 16 and second body, herein referred to as chlorine reservoir 12, the second body being movably disposed within the cavity of the first body. Float 16, comprising a floatation chamber 26, float cavity 22, ballast weight 10, a plurality of mounting slots 36, a float cap 20 that house mounting tabs 38 which interlock with float 16. Chlorine reservoir 12, comprising a halogen chamber, a column 14 with graduation marks 30, indicator numerals 32, a plurality of ventilation slots 46, flow restrictor 28, to regulate the amount of circulation through reservoir 12 and a removable lower member, a reservoir cap 42 to allow filling reservoir 12 with halogen. The assembly, reservoir 12 residing in float 16, is floated in water which is circulated through the ventilation slots 46 to wet the solid halogen and cause the halogen to dissolve.

Abstract: A method of sanitizing water contained in a spa is provided which comprises installing a chlorine generating cell including a diamond electrode in a filter compartment of the spa, employing a resin-filled calcium remover bag to reduce the hardness of the water, adding salt to the water; and operating the chlorine generating cell to generate chlorine and other sanitizing agents for sanitizing the water.

Abstract: A filtration unit for a swimming pool or spa, is disclosed, the filtration unit including a support base (20); a filter housing (30) mounted on top of the support base; and a recess (21) in the support base, the recess adapted to receive a pump (60), at least in part. A multi-port valve (50) is laterally mounted to the filter housing wherein an orbital control arm (54) of the multi-port valve may be moved in a substantially vertical plane to select alternative operations of the filtration unit. The unit may further include a top with space for electronic controls and/or chemicals.

Abstract: A pool/spa water treatment system may include a pump and a pool filter. The pump may include a pump inlet and a pump outlet. The pump inlet and outlet may be aligned on a first axis or within a first vertical plane. The pool filter may be offset a select transverse distance from the pump. The pool filter may include a pool filter inlet in fluid communication with the pump outlet. The pool filter inlet and the pump outlet may be aligned on a second axis or within a second vertical plane that is transverse to the first axis or plane. The pool/spa water treatment system may further include a heater. The heater may include a heater inlet in fluid communication with the pool filter outlet. The heater inlet may be aligned with the pool filter outlet within the second plane.

Abstract: A swimming pool skimmer basket and chlorinator includes a basket and a removable divider that partitions the basket into a chlorine tablet compartment below and a debris compartment above. The basket is cylindrical with a flat base and has a plurality of apertures for passing water. The divider is a round disk with a plurality of apertures for passing water from the debris compartment to the tablet compartment. The disk has a handle with a vertical post and a cross bar. A latch retains the divider in the basket so the handle can pull the basket from the skimmer well. The latch includes protrusions from the ends of the cross bar that fit into corresponding depressions in the basket wall.

Abstract: An interactive sanitizer controller/display pad and method for controlling and selecting a dispensing rate in a sanitizer dispensing system based on the time the system is in a periodic dispensing mode and for indicating when a sanitizing dispenser needs replacement.

Abstract: Disclosed is a heater including a back-flow preventing device located at or adjacent an outlet of the heater. In some embodiments, the back-flow preventing device has an open position and a closed position. When the back-flow preventing device is in the open position, water is able to flow freely through the heater. When back-flow preventing device is in the closed position, water is prevented from flowing or migrating back into the heater.

Abstract: Detailed is electricity generation for powering devices associated with swimming pools or other structures utilizing recirculating fluid. The recirculating fluid is used to produce electricity for direct or indirect supply to electrical devices. Turbines may be placed in by-pass channels so as to have access to some fluid flow yet not unduly disrupt main flow of the recirculating fluid.

Abstract: A control system comprising a timer based controller and a valve wherein the timer-based controller has a fixed period and the timer based controller regularly cycles the valve between a first condition and a second condition with the first portion of the cycle directing a first flow of water through a dispensable material and the remaining portion of the cycle directing a lesser flow of water through the dispensable material.

Abstract: The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, which comprises the following steps: a.—providing a structure able to contain a large water body larger than 15,000 m3; b.—feeding the structure of step (a) with inlet water; c.—measuring water pH; d.—adding an oxidizing agent to the water contained in the structure of step (a), e.—adding a flocculating agent in concentrations within 0.02 and 1 ppm with maximal frequencies of 6 days and cleaning the bottom of the structure of step (a) with a suction device to remove precipitated impurities from the bottom of said structure, and; f.—generating a displacement of surface water containing impurities and surface oils by means of the injection of inlet water according to step (b), which generates said displacement in such a way to remove said surface water arranged in the structure of step (a), which together with step (e) replaces traditional filtering.

Abstract: A pool/spa water treatment system may include a pump and a pool filter. The pump may include a pump inlet and a pump outlet. The pump inlet and outlet may be aligned on a first axis or within a first vertical plane. The pool filter may be offset a select transverse distance from the pump. The pool filter may include a pool filter inlet in fluid communication with the pump outlet. The pool filter inlet and the pump outlet may be aligned on a second axis or within a second vertical plane that is transverse to the first axis or plane. The pool/spa water treatment system may further include a heater. The heater may include a heater inlet in fluid communication with the pool filter outlet. The heater inlet may be aligned with the pool filter outlet within the second plane.

Abstract: The present invention relates to swimming pools and other pools of standing water, and in particular to a dispensing unit that distributes a chemical solution that reduces evaporation and heat loss by forming a film or monomolecular layer over the surface or substantial surface area of the swimming pool or water pond.

Abstract: The disclosed systems and methods for maintenance of an enclosed body of water generally include mobile systems and/or methods for removal of mineral hardness and other particulate impurities via lime softening filtration. Chemicals are added to a body of water containing unwanted mineral hardness (or other particulate impurities) and mixed to assist dispersion. The chemicals react with the hardness minerals making them insoluble. The resulting precipitate falls out of solution to the bottom of the body of water for subsequent removal via filtration. This eliminates or otherwise reduces the need for draining water and/or adding new water to a body of water to maintain proper mineral hardness balance and/or concentration of other particulate impurities.

Abstract: An automated self-propelled pool cleaner having a housing, a water pump for moving water through the housing, drive means for moving the pool cleaner over the surface of the salt water pool to be cleaned, and an integral electrochemical chlorine generator mounted in the housing, includes a processor/controller that is programmed to activate the chlorine generator, the pump and drive means in predetermined operational sequences that minimize wear and tear on the water pump and drive means, while at the same time distribute and maintain a safe level of sanitizing chlorine in the pool, to thereby obviate the need for an in-line chlorinator or other chemical additive treatments; an optional automated sensor device can be provided to activate a secondary maintenance program which enables the pool cleaner to operate over prolonged periods of time as the sole means for filtering and sanitizing the pool water.

Abstract: A user friendly system that permits an unskilled person to quickly add dispersant material to a fluid system with the user friendly system utilizing operator evident dispersant carriers such as drawers, hangars or insertable cartridges.

Abstract: Disclosed herein is an improved pool cleaning vehicle with the ability to clean and sanitize pool water. The vehicle includes a housing having an interior. The vehicle includes a chemical dispenser member connected to the housing. The chemical dispenser member has a hollow interior suitable for storing chemicals for sanitizing pool water. The chemical dispenser having an inlet for allowing pool water to contact the chemical dispenser member. The chemical dispenser member having a dissolvable seal. And, upon continued contact with water, the seal dissolving. The chemical dispenser member having an outlet facilitating communication between the chemical dispenser member and the pool water.

Abstract: A pool/spa water treatment system may include a pump and a pool filter. The pump may include a pump inlet and a pump outlet. The pump inlet and outlet may be aligned on a first axis or within a first vertical plane. The pool filter may be offset a select transverse distance from the pump. The pool filter may include a pool filter inlet in fluid communication with the pump outlet. The pool filter inlet and the pump outlet may be aligned on a second axis or within a second vertical plane that is transverse to the first axis or plane. The pool/spa water treatment system may further include a heater. The heater may include a heater inlet in fluid communication with the pool filter outlet. The heater inlet may be aligned with the pool filter outlet within the second plane.

Abstract: Corrosion Resistant Ozone Generators, including ozone generating chips, for various purposes including spas, pools and jetted tubs as well as methods for making and using such Corrosion Resistant Ozone Generators.

Abstract: A chemical dispensing system for a water-filled structure, such as, for example, a swimming pool or a spa, having an interchangeable float adjuster.

Abstract: The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, such as lakes or artificial lagoons, with excellent color, transparency and cleanness properties at low cost, which comprises the following steps: a.—providing a structure able to contain a large water body larger than 15,000 m3; b.—feeding the structure of step (a) with inlet water having iron and manganese levels lower than 1.5 ppm and turbidity lower than 5 NTU; c.—measuring water pH, ideally it should be within a range lower than 7.8; d.—adding an oxidizing agent to the water contained in the structure of step (a), with which a 600 mV minimal ORP is controlled in water for a minimal period of 4 hours and in maximal cycles of 48 hours; e.—adding a flocculating agent in concentrations within 0.

Abstract: A mobile system for generating and dispensing a chemical includes a portable platform comprising a source of a gaseous chemical, the gaseous chemical forming a solution in water, and a fluid coupling through which the gaseous chemical is delivered to a body of water.

Abstract: Methods and apparatus for efficient implementation and control of water treatment bypass loops combining ozone and chlorine injection are disclosed. Combined use of ozone and chlorine exploits high oxidation potential of ozone while retaining longer lived residual effectiveness of chlorine for high efficacy against contaminants, particularly biological and organic. Embodiments including automated monitoring and control of chlorine concentrations in presence of high oxidation potentials from ozone are disclosed, as is an inexpensive circuit for using a signal from a redox sensor for controlling output from an electrolysis cell. Also disclosed is a multipurpose enclosure that may be used, with different inserts, to implement an electrolysis cell, an ultraviolet ozone generator, an advanced oxidation unit, or an erosion feeder for adding dissolved salt to water for use in an electrolysis cell.

Abstract: A dispenser system that takes high pressure fluid such as a high pressure water source and reduces the volume flow of the high pressure water as it flows into a dispenser with the dispenser having a low pressure outlet, which offers negligible fluid resistance in comparison to the inlet fluid resistance to the dispenser, thereby ensuring that if a dispenser cap is accidentally removed from the dispenser while the unit is in operation the water will not spray out into and onto the user. The dispensing system includes a removable cartridge carrier with adjustable openings and a dispenser housing that one can maintain a uniform flow pattern under different flow rates to provide for a predicable control of a dispersion rate from a dispersant located in the system and a method of predictably changing the dispersion rate of a dispersant.

Abstract: A device for dissolving solid chemical substances in water is provided with: a container, which has a bottom portion designed to contain an aqueous solution; a perforated loading chamber, which is set at the top of the bottom portion and is designed to contain a solid chemical substance; and a spraying device set within the loading chamber for directing at least one jet of water onto the solid chemical substance. In use, the solid chemical substance is set around the spraying device, and the jet of water is directed downwards and/or laterally so as not to wet the solid chemical substance set above the spraying device. In this way, there is obtained a relatively gradual dissolution of the solid chemical substance and a lower development of gaseous substances having an unpleasant smell.

Abstract: The present invention relates to swimming pools and other pools of standing water, and in particular to a dispensing unit that distributes a chemical solution that reduces evaporation and heat loss by forming a film or monomolecular layer over the surface or substantial surface area of the swimming pool or water pond.

Abstract: The pool filter cleaner is a device for simultaneously cleaning the interior and exterior surfaces of a conventional cylindrical pool filter. The pool filter cleaner includes first and second elongated pipes, each having an upper end and a lower end. A hose connector provides fluid connection between an external hose, the upper end of the first elongated pipe and a first end of a cross pipe. A second end of the cross pipe is in fluid communication with the upper end of the second elongated pipe. A sprinkler head is mounted on the lower end of the first elongated pipe, and a nozzle is mounted on the lower end of the second elongated pipe. A cap is slidably mounted on the first elongated pipe, the cap being adapted for covering and sealing an upper opening of the pool filter when the sprinkler head is inserted within the pool filter.

Abstract: An apparatus and method for controlling a water characteristic of a body of water by controlling the cyclic release of a water characteristic material into the body of water with or without the system being responsive to a level of the water characteristic in the body of water.

Abstract: A system and method for maintaining a body of water in a sanitized condition with use of a halogen and a source of silver ions wherein the halogen is maintained at 50% to 75% less than a recommended halogen level for maintaining the body of water in a sanitized condition by adding a compound containing a hydantoin ring to a recreational body of water containing a halogen and a source of metal ions.

Abstract: A system and method is disclosed for chlorine generation and distribution for the treatment of a pool, spa, body of water, or other water system.

Abstract: A method to meter a granular chemical into water in a swimming pool provides a dispensation unit constructed to dispense a granular chemical at a selected rate per unit of time. The dispensation unit includes a device to open a container of the granular chemical. The dispensation unit functions to separate granular material for dispensation through apertures in the unit. The dispensation unit is charged with a granular chemical while the unit is upright. The unit is inverted in order to evenly distribute granular chemical on the surface of water in a swimming pool.

Abstract: The present invention relates to swimming pools and other pools of standing water, and in particular to a dispensing unit that distributes a chemical solution that reduces evaporation and heat loss by forming a film or monomolecular layer over the surface or substantial surface area of the swimming pool or water pond.

Abstract: A system, a device and a method for maintaining water quality in a pool or similar water container for use by people which is characterized in that a pressure sensor is arranged to sense the pressure variations inside a main water container 1 and to provide a pressure variation signal to a control and processing unit 3. The control and processing unit is connected with a dispensing module and is adapted to generate and transfer control signals to said dispensing modules. The control signal depends on the detected pressure variation signal. The system for water treatment comprises also a water treatment circulation loop 3A-D at least one controllable chemical dispensing module 8A-D, 9A-D. The circulation loop is adapted to pump water from the main water container 1, around the circulation loop 3A-D, and back into the main water container 1 via the dispensing module for dispensing a chemical treatment agent.

Abstract: A dispenser or dispensable material for external attachment to a mobile surface cleaning device, mobile surface cleaning device provides an aftermarket apparatus and method for both on-the-go cleaning and on-the-go delivery of dispensable materials into the body of water with the dispensable material mounted either on a downstream side of the mobile surface cleaning device or spaced from the flow path through the mobile surface cleaning device.

Abstract: A cleaning device for cleaning sidewalls of a liquid container. The cleaning device includes a cover that can be removably disposed over a flotation device. The cover has a lower cleaning portion that cleans the sidewalls of the container upon contact with the sidewalls. The cover also has an upper noncleaning portion.

Abstract: The invention is directed to a chlorinator mounted inline in a water purification system having a housing having an inlet end and an outlet end and an upper compartment having an electronics section with a controller unit contained within the electronics section and in electrical communication with a power source and an at least one electrolytic plate. The system having a heat sink member in thermal communication with the controller, wherein the flow of the water in the water purification system cools the heat sink member and the controller unit.

Abstract: A device (1) for dissolving solid chemical substances in water is provided with: a container (2), which has a bottom portion (6) designed to contain an aqueous solution; a perforated loading chamber (9), which is set at the top of the bottom portion (6) and is designed to contain a solid chemical substance (10); and a spraying device (18) set within the loading chamber (9) for directing at least one jet of water onto the solid chemical substance (10). In use, the solid chemical substance (10) is set around the spraying device (18), and the jet of water is directed downwards and/or laterally so as not to wet the solid chemical substance (10) set above the spraying device (18). In this way, there is obtained a relatively gradual dissolution of the solid chemical substance (10) and a lower development of gaseous substances having an unpleasant smell.

Abstract: Treatment devices for fluid such as water are described. Principally (although not necessarily exclusively) designed for use as chlorinators, the devices may divert water flowing in conduits into the devices for treatment and subsequent return to the flow stream. A return tube of the device may be designed to create vortex action, using a pressure differential to evacuate treated water from the device back into the conduit.

Abstract: A chemical feeder for dissolving chemical tablets includes a housing and a plurality of tapered pedestals positioned in the housing for supporting the chemical tablet as the tablet is dissolved by liquid flowing through the feeder. The housing also includes a cup configured to receive a cartridge for holding the tablet; the cup includes inlet and outlet ports for the liquid. The cartridge includes a plate at its lower end; the pedestals are formed on its interior surface. Each pedestal may have a pencil-point shape. When the chemical tablet is installed in the cartridge and the cartridge is installed in the cup, the tapered pedestals support the chemical tablet and thereby expose an underside of the tablet to the liquid. The tablet is immersed in the liquid according to the height of the pedestal; the dissolution rate of the tablet thus corresponds to the height of the pedestals.

Abstract: A feeder is disclosed for dissolving a chemical and mixing it with a liquid. The feeder includes a hopper adapted to hold the chemical, a nozzle located in the hopper, and a supply of the liquid to the nozzle to dissolve the chemical on contact with the liquid from the nozzle to form a solution. A solution basin is disposed under the hopper and a drain is provided from the hopper into the solution basin. An outlet from the solution basin has an outlet valve which opens when a solution level in the solution basin rises.

Abstract: A control system comprising a timer based controller and a valve wherein the timer-based controller has a fixed period and the timer based controller regularly cycles the valve between a first condition and a second condition with the first portion of the cycle directing a first flow of water through a dispensable material and the remaining portion of the cycle directing a lesser flow of water through the dispensable material.

Abstract: An apparatus and method for controlling a water characteristic of a body of water by controlling the cyclic release of a water characteristic material into the body of water with or without the system being responsive to a level of the water characteristic in the body of water with the system capable of being controlled from a display or from a wireless control module or both.

Abstract: A liquid dispensing system is provided for automated dispensing of a plurality of liquid reagents into a recreational body of water. The liquid dispensing system includes a cartridge apparatus housing a plurality of liquid reagent containers, each containing a respective liquid reagent. A docking assembly is provided having a dock manifold device, and is releasably coupled to the cartridge apparatus between a first condition and a second condition. In a first condition, the cartridge apparatus can be removably coupled to the docking assembly, while in the second condition, the cartridge apparatus is lockably mounted to the docking assembly in a manner permitting fluid communication from the respective reagent container to respective fluid passages of the manifold device. The dispensing system further includes a dosing engine having a valve manifold device to selectively dispense the liquid reagents into the recreational body of water through a dispensing port.

Abstract: A sanitizer generation system supplies power to a first and a second sanitizer generator. Each of the sanitizer generators is connected to a body of water by a circulation system. The system includes a power supply and a control system connected to the power supply and the sanitizer generators. The control system selectively delivers electric current from the power supply to the first and second sanitizer generators.

Abstract: A liquid dispensing system is provided for automated dispensing of a plurality of liquid reagents into a recreational body of water. The liquid dispensing system includes a cartridge apparatus housing a plurality of liquid reagent containers, each containing a respective liquid reagent. A docking assembly is provided having a dock manifold device, and is releasably coupled to the cartridge apparatus between a first condition and a second condition. In a first condition, the cartridge apparatus can be removably coupled to the docking assembly, while in the second condition, the cartridge apparatus is lockably mounted to the docking assembly in a manner permitting fluid communication from the respective reagent container to respective fluid passages of the manifold device. The dispensing system further includes a dosing engine having a valve manifold device to selectively dispense the liquid reagents into the recreational body of water through a dispensing port.

Abstract: The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in the device using a venturi nozzle disposed between the metal generator and the hypohalite generator.

Abstract: A gas injector that is coupled to the pump strainer basket housing drain port of a pump-circulated system is disclosed. The gas injector that may be installed in a way that is less invasive than currently used gas injection systems to pre-existing plumbing of a pump system and that allows for more efficient gas absorption in water than currently used gas injection systems. The gas injector may be used with all currently existing pump systems.

Abstract: The invention relates to saturating various fluid media with oxygen, for example for aeration and can be used for the food industry, pharmaceutics, perfumery and cosmetics, physio- and aromotherapy, water supply systems, fishing and agriculture, including producing beverages, good additives, drugs, novel perfume and cosmetic products, inhalation and bathing, for improving the habitat and increasing a productivity of fish and other useful animals and microorganisms in aquariums, ponds, pools and for producing means for processing plants and animals. The inventive method for processing a fluid medium consists in passing an oxygen-containing gas flow which is pre-saturated by phyto-excretes of vegetating or cut plants through said medium.

Abstract: A pool/spa water treatment system may include a pump and a pool filter. The pump may include a pump inlet and a pump outlet. The pump inlet and outlet may be aligned on a first axis or within a first vertical plane. The pool filter may be offset a select transverse distance from the pump. The pool filter may include a pool filter inlet in fluid communication with the pump outlet. The pool filter inlet and the pump outlet may be aligned on a second axis or within a second vertical plane that is transverse to the first axis or plane. The pool/spa water treatment system may further include a heater. The heater may include a heater inlet in fluid communication with the pool filter outlet. The heater inlet may be aligned with the pool filter outlet within the second plane.

Abstract: A multi-function chlorine dispenser performs several functions at once. The functions include dispensing chlorine, lighting up the pool at night and displaying water temperature. A further function of displaying time can also be included.

Abstract: A dispenser system that takes high pressure fluid such as a high pressure water source and reduces the volume flow of the high pressure water as it flows into a dispenser with the dispenser having a low pressure outlet, which offers negligible fluid resistance in comparison to the inlet fluid resistance to the dispenser, thereby ensuring that if a dispenser cap is accidentally removed from the dispenser while the unit is in operation the water will not spray out into and onto the user. The dispensing system includes a removable cartridge carrier with adjustable openings and a dispenser housing that one can maintain a uniform flow pattern under different flow rates to provide for a predicable control of a dispersion rate from a dispersant located in the system and a method of predictably changing the dispersion rate of a dispersant.