Clean a Hayward Sand Filter


Turn off the power to the filter at the breaker box. Close all plumbing valves that lead to the filter. Disconnect all the hoses that lead to the filter. Place these hoses in the pool or at a higher level or you may lose pool water.
Use a screwdriver or pliers to remove the drain plug on the bottom panel of the filter. Let the water run out and completely empty the filter tank. If your doing this in spring your filter is already drained
Loosen the clamp that holds the filter valve onto the filter. Lift the filter head up to remove it and set it to the side for now. You may have to remove the hose from the filter head to the pump.
Use a hand scoop or shop vac to remove most of the sand. Toward the bottom of the filter, you will see parts called the laterals. Be careful not to hit it because they can break. Once you seem the laterals stop.
Cover the opening of the stand pipe in the middle of the filter body with tape. You do not want sand going into the pipe when you are refilling the tank.
Replace the drain plug in the bottom of the filter. Fill the filter tank one-third full of fresh water. Place new sand in the filter. Finish filling with water enough to cover the sand, about ¾ of the way. Remove the tape from the sand pipe and replace the filter valve. Reconnect the hoses. Open the valves, turn you filter valve to backwash to remove any loose sand or particles.

**Recommended to change your filter sand about every 3 to 5 years**