Patent ID: 6942790

Claim:
An open-air filtration cleaning device, comprising: a. a suction chamber unit for collecting and discharging scrubbed debris in swimming pool or hot tub water; b. said suction chamber unit being provided with flexible elastomeric elements and having cut out pathways in its' bottom region, and contacting the swimming pool's or hot tub's inner surfaces to thereby enable free flow of pool water into the chamber; c. said suction chamber unit being mounted on four wheels for manual or automatic propulsion of the pool or tub cleaner; d. said suction chamber unit having an enclosed mechanical drive source which comprises an electrical motor or hydraulic motor; e. said mechanical drive rotating two scrubbing brushes mounted on the bottom of said suction chamber unit in opposing directions for scrubbing said inner surface of said pool or hot tub; f. said suction chamber unit having a horizontal rotating impeller positioned above said scrubbing brushes, and powered by said mechanical drive; g. said horizontal impeller sucking scrubbed debris with pool or hot tub water and discharging the water and entrained debris into a flexible tubing outlet positioned on top of said suction chamber unit; h. said flexible tubing outlet being connected to and in communication with a platform above the water line in the swimming pool or hot tub, for discharging debris containing water into an open to air filtering tube with replaceable filter elements; i. said open to air filtering tube discharging filtered clean water into the pool or tub; j. monitoring means for monitoring water level in said replaceable filter element and open to air replaceable filtering tube to detect any decrease in water filtering efficiency; and k. signal means for alerting an operator of the device when filtering efficiency decreases, to facilitate replacing the filter element and thereby promote reliable filtration of said pool or hot tub.