An evaporator is provided for evaporating water from an ambient body of water having a water surface. The evaporator includes a housing that has a proximal end proximate to the water surface, a distal end distal to the water surface, and a housing air flow channel directed toward the water surface. The housing is disposed on a support, such as a float assembly, that positions the housing above the water surface. The evaporator also includes an air flow induction device, preferably an impeller, disposed to direct an air flow stream from the distal end toward the proximal end through the housing air flow channel and toward the water surface so that the air contacts the water. The impeller preferably is made of a fiberglass material. The support preferably includes at least one float assembly air flow channel that receives the air flow stream from the housing and directs it outwardly from the evaporator. Water injection devices such as spray nozzles or atomizing nozzles preferably are disposed in the float assembly channel or channels to inject the water into the air flow stream.

An evaporator is provided for evaporating water from an ambient body of water having a water surface. The evaporator includes a housing that has a proximal end proximate to the water surface, a distal end distal to the water surface, and a housing air flow channel directed toward the water surface. The housing is disposed on a support, such as a float assembly, that positions the housing above the water surface. The evaporator also includes an air flow induction device, preferably an impeller, disposed to direct an air flow stream from the distal end toward the proximal end through the housing air flow channel and toward the water surface so that the air contacts the water. The impeller preferably is made of a fiberglass material. The support preferably includes at least one float assembly air flow channel that receives the air flow stream from the housing and directs it outwardly from the evaporator. Water injection devices such as spray nozzles or atomizing nozzles preferably are disposed in the float assembly channel or channels to inject the water into the air flow stream.

A multi-stage floatation dispenser for carrying a ballast, which may be a non-water consumable dispersant and at least one water consumable dispersant wherein the weight of the water consumable dispersant decreases as the water consumable dispersant is consumed with the weight of water consumable dispersant and the non-water consumable coordinated with the flotation capacity of a flotation dispenser to provide for either a two stage or a three stage dispensing mode.

A multi-stage floatation dispenser for carrying a ballast, which may be a non-water consumable dispersant and at least one water consumable dispersant wherein the weight of the water consumable dispersant decreases as the water consumable dispersant is consumed with the weight of water consumable dispersant and the non-water consumable coordinated with the flotation capacity of a flotation dispenser to provide for either a two stage or a three stage dispensing mode.

Disclosed herein is a pool cleaning device having filtering and pumping capabilities. Some embodiments of the disclosed device can be unencumbered by hoses, cables, and the like when in use in the pool. The device may be buoyant and can be configured to float at or just below the surface of the water. The device can comprise a strainer, a pump, a housing for the strainer and pump, and one or more floatation devices. Such a design may allow for a floating skimmer and pump with no need for installation in a side wall. In some embodiments, the device can further comprise a pre-filter. For example, in some embodiments, the strainer and filter can remove large objects and particulates, respectively, before the water passes through the pump. As disclosed in some embodiments, various components of the device may be removeable and replaceable to extend the lifetime of the device.

A two-part dispensing device for a pool having a dispensing saddle with a static port therein for continual delivery of a first dispersant and a hold for floatingly supporting itself and an exchangeable dispensing pod therein with the dispensing pod having a dynamic port and a static port for a continual delivery of a dispersant wherein the static port delivery of a dispersant maintains the pool at a safe level when there is no human bather load on the pool and the condition of the disperant in the dispensing pod can be determined by the orientation of the dispensing saddle and the dispensing pod in the pool.

A two-part dispensing device for a pool having a dispensing saddle with a static port therein for continual delivery of a first dispersant and a hold for floatingly supporting itself and an exchangeable dispensing pod therein with the dispensing pod having a dynamic port and a static port for a continual delivery of a dispersant wherein the static port delivery of a dispersant maintains the pool at a safe level when there is no human bather load on the pool and the condition of the disperant in the dispensing pod can be determined by the orientation of the dispensing saddle and the dispensing pod in the pool.

A fluid gasification, pumping and mixing equipment, for fluids contained in open or closed bodies, which allows to control the bubble size and the proportion of mixed gases, of a gas flow to be diffused into the fluid, with means to generate a gas suction flow that allows active filling of cavitation zones created by the radial movement of a cavitation propeller, which can be used to suction at different depths without losing suction force or generate higher energy consumption.

A system for mixing particles that includes a liquid comprising inert particles and defining a liquid and air interface; magnetic microparticles suspended at the liquid and air interface; and a magnetic source configured to apply a uniaxial alternating magnetic field parallel to the liquid and air interface, wherein the uniaxial alternating magnetic field promotes a turbulent motion of the magnetic microparticles, which in turn promotes a diffusive motion of the inert particles.

An apparatus for aerating bodies of water, comprising a floating platform (19), a motor (15) supported by the floating platform (19), a transmission (16) which is coupled to the motor (15) and whose output shaft is in the form of a hollow shaft (17), a fan for supplying air through an air supply line (18) connected thereto, wherein the air supply line (18) is connected to one end (E1) of the hollow shaft (17), a hollow stirring shaft (1) coupled to the other end (E2) of the hollow shaft (17), an stirrer (K) affixed to the free end of the approximately vertical stirring shaft (1), wherein the stirrer (K) is designated as a hollow body and has a central opening (3) through which air supplied by the stirring shaft (1) can pass, and a multiplicity of air outlet openings (14).