How Do You Change Pool Filter Sand?
Pool filter sand requires changing every three to four years, depending on the usage and care given to the pool. The correct type of sand is #20 silica sand, which has a grain size of between .45mm-.55mm. Other sands are too fine and slip right through the system, ending up in the pool. Each grain of sand has jagged corners, which enable it to snag particles of dirt and other debris. Over time, the rubbing against each other during the filtering process rounds their corners and they can no longer effectively trap material. This will cause consistent cloudiness or dullness to the pool water that cannot be resolved through chemical additions or cleaning. This persistent condition indicates that it is time to change the sand. Turn off the pump and the circuit breaker that controls the power, and close all shut-off valves to stop the flow of water to and from the pool. Remove the drain plug from the sand canister to allow the water inside to begin draining. Unscrew the fastening bolt and r
