It's gone. Does this happen naturally now that my water chemistry is perfect for my pool. I recently changed my pool water and presto, there's nothing on the tiles.
I had to scrub once a month during the summer cause of the nasty water here in the desert and had a pool service company service my pool.
My CH is in the 300-400 range now, before it was 900. Will it come back or is it gone as long as I maintain current chemistry levels
Please move if in wrong forum