I've used the rinse option for this....stirs up the sand....then resettles in filter option. Do you have this option on your sand filter? This will be my 3rd season w/ pool and I think filter is doing a good job. I did treat sand following 1st season at closing/draining of pipes, but not this year as I kept everything online and cycled pump when temps were below freezing.Originally Posted by 14me2
CaryB
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