One more thing -- yellow around the walls can be algae, or iron stains. Either way, brushing is the thing to do, both to help and to ID the problem. (Mustard algae will brush away; iron not so much.)
Ben
Re: used yellow out before I found you.....
One more thing -- yellow around the walls can be algae, or iron stains. Either way, brushing is the thing to do, both to help and to ID the problem. (Mustard algae will brush away; iron not so much.)
Ben
PoolDoc / Ben
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