I am so beyond frustrated with this pool. Last year we started getting unsightly stains on our white gunite pool. They got worse all summer. The man who opens and closes are pool explained it was metal stains and that we would need to do the treatment when our pool was closed and our chlorine was zero. So, in March, we got Absorbic Acid and did the treatment. Worked like a charm! It was the brightest, whitest pool you have ever seen. He explained we had to slowly bring our chlorine level up. So for a month we did and then we went to the pool store with a sample of water to get our other levels checked out. We were instructed to shock our pool and add some calcium. We shocked the pool and within an hour it was a swamp. I called the pool guy who was explained I was given horrible advice and how to treat it. We spent three days adding metal eliminator to the pool, with cellulose in our filter, and ran the filter 24 hours a day until the water was pretty again. We ended up with 3 or 4 stains but nothing earth shattering. However, something we added (the shock, the eliminator,????) sent our CYA off the charts and we couldn't hold chlorine.
That's when I found these boards.
For three weeks the moderators of this board directed me in nursing my pool back to health which included two partial drains (40% the first time and more than 50% the second time); SLAMing the pool for 3 days because I kept failing the OCLT; and using half of a season's worth of chemicals and testing supplies. FINALLY, we consistently got excellent levels and for about a week we have seen what the Trouble Free Pool experience is really like...add about 30 ounces of LC each night and that's it...HEAVEN.
And then we pulled the solar cover back off the pool yesterday.
The metal stain is E V E R Y W H E R E again. It is once again covering the entire pool and looks horrible. The only thing I can figure is that we were using the CuLator, which we purchased about a month ago, and it stopped trapping the metals.
So basically the last 3 months of work was all for nothing.
We have no idea where the metal is coming from or what to do about it. The pool used to have a heater (before we owned the house) but it was removed before we purchased the house two years ago. Here is our Annual Water Report where copper was last tested in 2014.
My main question is...can we do anything about the stain for the summer or do we have to wait until the season is over and try again?