Systems including variable speed pumps for cleaning swimming pools and spas

Abstract

Systems and methods for circulating water of swimming pools or spas are detailed. The systems may include both a main filtration pump and a secondary booster pump, with the booster pump containing a variable-speed motor. By adjusting motor speed of the booster pump, pressurized water may be supplied to certain automatic swimming pool cleaners more efficiently, without need for energy-wasting by-pass paths or restrictor plates.

1 - 5 . (canceled) 
     
     
         6 . A pool-cleaning system comprising:
 a. an automatic swimming pool cleaner having an inlet and configured to operate based at least in part on pressurized water supplied to the inlet;   b. connection means; and   c. a booster pump (i) having an outlet connected, via the connection means, only to the automatic swimming pool cleaner so as to supply pressurized water to the inlet of the automatic swimming pool cleaner and (ii) comprising a variable-speed Motor configured in use for adjustment of a flow rate of pressurized water supplied to the inlet of the automatic swimming pool cleaner.   
     
     
         7 . A system according to  claim 6  in which the connection means comprises a hose. 
     
     
         8 - 9 . (canceled)