A photocatalytic filter including first photocatalytic particles each of which is a composite of an adsorbent and titanium apatite, second photocatalytic particles each of which is glass coated with titanium apatite, a light source configured to emit ultraviolet rays, and a container accommodating the first photocatalytic particles, the second photocatalytic particles, and the light source.

The invention is an electrolysis apparatus for water sterilization and pipe cleaning, and comprises: a pipe 100 having a forward flowing portion 110, a backward flowing portion 120; an electrolyzing chamber 200 positioned between the forward flowing portion 110 and the backward flowing portion 120 of the pipe 100 with an electrolyte inlet 210 and an outlet 220 communicating with the forward flowing portion 110 or the backward flowing portion 120 to let the products generated from the electrolysis reaction exhaust into the forward flowing portion 110 or the backward flowing portion 120; and +, − electrodes 300 installed in the electrolyzing chamber 200.

Exemplary embodiments of a floating pool dispenser are described. In one embodiment, a floating pool dispenser includes an outer assembly, an inner assembly, an end cover, and a lid. The inner assembly contains chemicals to be dissolved in a pool. The inner assembly moves vertically relative to the outer assembly in response to the continuous dissolving of chemicals.

An apparatus for collecting debris includes a frame having a connector configured to attach to a pole. The frame includes a plurality of frame rods each designed to be removably connected to at least one other frame rod via a tongue-and-groove feature such that the plurality of frame rods define an opening when connected together. The apparatus further includes a netting designed to be removably connected to the frame and to substantially fill the opening defined by the plurality of frame rods.

An algae preventive device for prevention of algae buildup in an aquarium is presented. The algae preventive device is useful for eliminating algae growth on all surfaces. Also, the algae preventive device is useful for keeping water clear and can be used on ponds, pools and aquariums. The algae preventive device does not impact fish or plant life and does not require testing of water, high-grade filers and media, lighting modification or chemicals.

The present invention relates to apparatuses for improving pool skimmers. In some embodiments, the apparatus is a pool skimmer basket system that includes a skimmer basket, a first tube that is attached to the skimmer basket, and a second tube that is adjacent to and rotatable relative to the first tube. The first tube includes a longitudinal slot that feeds water into the skimmer basket. Without being bound by any particular theory, it is believed that the slot increases the velocity of water flowing into the basket and that the system increases the debris-holding capacity and allows one to avoid having to reach through dirty water to remove the skimmer basket.

A method of sanitising a body of water including the steps of adding sodium chlorite and/or sodium chlorate to the body of water and converting the sodium chlorite and/or sodium chlorate to chlorine dioxide in an electrolysis cell which is in fluid communication with a water circulation system of the body of water, wherein chlorine is also added to the body of water.

A chemical regulation system according to various embodiments of the present technology is configured to regulate the flow rate of a liquid and monitors the chemical composition of the liquid. The chemical regulation system may comprise various valves, fittings, and couplings configured to regulate the flow of the liquid through a production tank and into a chemical hopper to product a highly concentrated liquid/chemical solution that is provided to the production tank. The chemical regulation system may comprise a controller to electrically control various valves. The chemical regulation system may comprise a device for facilitating the flow of a liquid out of a production tank.

Use of poly(alkylamine)-derived (PAD) self-supported cross-linked polymeric ammonium salts and ionomer hydrogels for adsorbing and desorbing organic contaminants, specifically per and polyfluoro alkyl substances (PFAS) from water.

A pool cleaner for cleaning a pool, the pool cleaner may include a filtering element for filtering fluid; at least one sensor for sensing an actual yaw of the pool cleaner and an actual orientation of the pool cleaner; at least one steering element that is configured to move the pool cleaner along a cleaning path during a cleaning process of a certain region of a sidewall of the pool; wherein the cleaning path comprises a cleaning path segment that has a cleaning path segment yaw that is a non-vertical yaw; wherein the cleaning path comprises less than a predetermined number of turns; wherein the predetermined number of turns is associated with another cleaning path that mostly includes vertical yaw cleaning path segments; and a controller that is configured to control the at least one steering element, based on the actual yaw of the pool cleaner.