Abstract: A pool water purifying device includes a rough filtration module having a first housing. A rough filter is received in the first housing. An electrolyzing module includes a second housing. Two electrodes and an ultraviolet lamp are mounted to the second housing and extend into the second housing. The electrodes are electrically connected to a power supply. A fine filtration module includes a third housing receiving a fine filter. A piping unit includes a plurality of pipes and a plurality of valves. The valves connect the first, second, and third housings to intercommunicate the first, second, and third housings with each other. The valves are mounted on the pipes to control communication between the pipes.

Abstract: A water processing device includes a main pipe having a water inlet, a water outlet, a first port, and a second port. The water inlet is connected to a water source. The first port and the second port are located between the water inlet and the water outlet, with the first port located between the second port and the water inlet, and with the second port located between the first port and the water outlet. A sodium chloride supply module is mounted to the first port for supplying sodium chloride into an interior of the main pipe via the first port. The sodium chloride dissolves in the water in the main pipe. An electrolyzing module is mounted to the second port for electrolyzing the water containing sodium chloride to generate hypochlorous acid water to be outputted via the water outlet.

Abstract: A pool water purifying device includes a rough filtration module having a first housing. A rough filter is received in the first housing. An electrolyzing module includes a second housing. Two electrodes and an ultraviolet lamp are mounted to the second housing and extend into the second housing. The electrodes are electrically connected to a power supply. A fine filtration module includes a third housing receiving a fine filter. A piping unit includes a plurality of pipes and a plurality of valves. The valves connect the first, second, and third housings to intercommunicate the first, second, and third housings with each other. The valves are mounted on the pipes to control communication between the pipes.