What is this white scratchy stuff on the sides and bottom of mypool?
On Sat, 05 May 2012 18:41:19 -0500, gonjah wrote:
How long has it been that low?
I don't know. It's normally OK (last summer) but it was left alone all
winter so it turned green so I drained it.
Do you think I should wash it with vinegar?
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