Question about Hayward Sand Filter System & Tank 21" 1 1/2 Hp
Your question was posted under "Pond and Water Garden Pumps", but I assume you are really asking about a swimming pool filter. Unscrew the control valve from the valve body and check the condition of the O-ring. If it is nicked, torn, or worn allowing water to flow past the valve, buy a replacement at your local hardware store or swimming pool supply. Pop the old one off, and put the new one in the track where the old one was. If it doesn't want to stretch to fit, put the new seal in HOT water for a few minutes and try again. Lubricating the O-ring with some Vaseline or other brand petroleum jelly will make operating the valve easier and cut down on wear of the new seal.
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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