I posted a previous thread about .3ppm copper. I thought it was coming from my well water but after bringing in a sample of well water and pool water it was only the pool water that had copper. I did the ascorbic cycle and things looked great ..... until the water got clear. Its back but not as bad, yet. So I was going to try this leslies stain and scale treatment and as I was getting ready to put some in the pool I noticed all sorts of stuff around my pool light. I am wondering if this could be the source of my coppper and metail stain issues.
Has anyone seen this? Do you know what it is? Could it be causing my metal staining? Do you know how to repair this? The pool is only 3 years old