Patent ID: 7300576

Claim:
A pool cleaning system for a swimming pool, comprising in combination: (a) a water recirculating system including a pump having a suction port and an outlet port; (b) at least one skimming device including i. a hollow body having a skimming inlet and an open top, and a removable lid covering the open top to allow access to a removable porous debris trap disposed in the body below the skimming inlet, ii. an entrainment nozzle in the body beneath the debris trap coupled in fluid communication with the outlet port; iii. a return tube extending from the body beneath the debris trap and positioned to receive a jet of water ejected from the entrainment nozzle and water entrained by the jet, to thereby remove water from the body of the skimming device and cause gravity flow of pool surface water into the body through the skimming inlet; iv. a suction tube having an end thereof communicating with the body beneath the debris trap and another end thereof connected to said suction port; and, v. a safety tube having one end thereof in communication with the body beneath the debris trap and another end thereof in communication with the atmosphere above the debris trap to thereby prevent the entrapment of a swimmer in contact with the return tube.