Today I noticed loose white powder sitting on top of 4-5 coping tiles. The affected coping tiles were not batched together. I am attaching a photo but it may be hard to make out the powder because the coping is white. Any idea what this is?
My pool Math log results
FC 8.5, PH 7.4, TA 60, CH 375, CYA 75, Salt 3,#100;, water temp 59, CSI -.074
My pool Math log resultsFC 8.5, PH 7.4, TA 60, CH 375, CYA 75, Salt 3,#100;, water temp 59, CSI -.074
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