I've read several posts on this topic. Either I'm searching the wrong words, or is it true that no one seems to know the cause? My fiberglass pool is about 3 months old. I'm sure the chemicals were out of whack for the first 2 months while it was under construction. But they've been pretty solid for the last month or so. We only started to notice this within the last month. Above the water (not underwater), the walls appear cloudy. When I wipe my finger across it, it leaves a white powdery coating on my finger. When I get the wall wet, it looks clear and shiny like new. As soon as it dries, it goes back to cloudy. I figure since something white comes off and sticks to my finger I should be able to wipe it off, but it doesn't seem that easy. I wipe and wipe, but it continually dries cloudy. The pool guy said to put vinegar on it, if it fizzes, then it's calcium - it did not fizz, so according to him, it's not calcium. He also said to try wiping liquid chlorine on it - I haven't tried that yet - is that safe? What's going on with my pool wall?
(I tried taking a picture, but to be honest, I don't think anyone other than a 3 month new pool owner would be able to see)
(I tried taking a picture, but to be honest, I don't think anyone other than a 3 month new pool owner would be able to see)