Question about Hayward Sand Filter System & Tank 21" 1 1/2 Hp
If you are certain the gauge is accurate (does it return to zero when the system is off?) and the system has worked well in years past it means your sand bed has deteriorated to the point that backwashing no longer removes enough debris and/or the sand is worn enough as to become to compacted in the tank. Either way it means it is time to remove at least the top several inches of sand and replace it with one 50# bag or better yet, remove all the old sand and refill the tank with new sand in the amount indicated on the label under media...it will be in multiples of 50#.
Posted on May 17, 2011
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Posted on Jan 02, 2017
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