I have been wandering the sites for awhile.
I have a new plaster pool. I had no stains for the first month waiting for the plaster to cure. As soon as the pool company added salt grey stains started to develop. Solid on the walls and blotchy on the bottom. I did a vit C test and it did lighten the stain. My pool company has said they have never seen a stain like this before and it really isn't their problem. I disagree. The PH was through the roof when they added the salt. Was there some sort of metal reaction. Should I have them acid wash it or should we try the AA method?