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Within the last couple of weeks I have noticed that my plaster has developed bright white spot as compared to the rest of the pool. The pool is about 1 year old and is 12,000 gallons. When you rub your finger over the plaster it feels smooth. I get my water tested weekly and have ho no major issues. My alkalinity and PH sometime are slightly out of wack but nothing else comes to mind.
Does anyone have any idea what may be casuing this or is this normal???
what interior finish do you have?
Normal plaster finish...
to me it doesn't sound like a plaster issue, but more of a chemical issue where, that developed over leaving a chemical in an area and possibly not being brushed. this is the only assumption i can come up with. Perhaps taking a picture and posting it may help
Thank you for the response. Do you have an idea what chemicals could cause siomething like that. I will try to post a picture. Thanks again for the help.