Ok took the pool store a sample to see if my testing is accurate. I was right on about TA. It was at 40. I was close on chlorine. I thought it was 4 and it was 5. CYA is still 50....as it should be since I do not use Tri-Chlor anymore. I had the pH at somewhere between 7.4 and 7.6. It was at 7.3. So I am going to try and lift that stain first with Oxa...something acid pack. If that doesnt work I will try Absorbic which seems expensive. I am also going to try and get the TA up. Its getting lower and lower.