Patent ID: 8007653

Claim:
A method of releasing bactericidal chlorine in the water of a swimming pool that contains a water-soluble chloride-containing chemical compound, the method comprising a. placing into the pool an automated, self-propelled pool cleaner having a housing, a water pump, drive means for moving the pool cleaner over the surface of the pool to be cleaned, an integral electrochemical chlorine generator mounted in the housing, and positioned in the flow path of water moving through the housing, a source of electrical power operatively connected to the electrochemical generator and control means for initiating and terminating the functioning of the chlorine generator; b. activating the water pump and the pool cleaner drive means to thereby move the pool cleaner across the surface of a wall of the pool to perform a programmed cleaning cycle; c. initiating the operation of the chlorine generator to thereby produce bactericidal chlorine from the chloride-containing compound dissolved in the water during the cleaning cycle; d. discharging bactericidal chlorine containing water from the pool cleaner housing in a turbulent flow to mix with the water in the pool; e. deactivating the drive means and the water pump at the end of the cleaning cycle while maintaining the operation of the chlorine generator; f. activating the water pump for intervals of several seconds every several minutes following the end of the cleaning cycle for a period of about one hour; g. activating the drive means and pump for a period of time ranging from 2 to 4 minutes to thereby relocate the pool cleaner in the pool; h. activating the water pump for intervals of several seconds every several minutes after the pool cleaner is relocated; and i. repeating steps (g) and (h) for a predetermined period of time.