US 12,420,218 B1
Pool water filtration system and related methods
Dean M. Atkinson, Jacksonville, FL (US)
Assigned to Com Pac Filtration, Inc., Jacksonville, FL (US)
Filed by Com Pac Filtration, Inc., Jacksonville, FL (US)
Filed on Oct. 26, 2022, as Appl. No. 17/974,458.
Claims priority of provisional application 63/271,819, filed on Oct. 26, 2021.
Int. Cl. B01D 29/66 (2006.01); B01D 29/52 (2006.01); B01D 29/60 (2006.01); C02F 1/00 (2023.01); C02F 1/40 (2023.01); C02F 103/42 (2006.01)
CPC B01D 29/66 (2013.01) [B01D 29/52 (2013.01); B01D 29/60 (2013.01); C02F 1/001 (2013.01); C02F 1/40 (2013.01); C02F 2103/42 (2013.01); C02F 2201/005 (2013.01); C02F 2209/40 (2013.01); C02F 2303/16 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A pool water filtration system comprising:
a body of water to be filtered;
a sludge removal assembly;
a backflush circuit connected to the sludge removal assembly;
a plurality of skimmer systems connected to the body of water by respective suction and discharge lines and the backflush circuit by respective backflush lines, each of the skimmer systems including:
a pump connected to the suction line;
a first main filter connected between the pump and the discharge and backflush lines; and
a plurality of flow control valves operable to selectively route water forwards through the first main filter to the discharge line and backwards through the first main filter to the backflush line; and
a controller configured to operate the plurality of flow control valves to periodically backflush the first main filters to the sludge removal assembly via the backflush circuit.