There is a white crystal-like substance on the bottom of the pool near the return outlets. Who can help?
Latest test results fro Leslie's
Free Chlor 8.0
Total Chlor 8.0
Cyanuric Acid 60
Total Alkalinity 130 (it's taken 6 weeks to get it down from 280 by adding 24oz. of Muriatic Acid daily)
Acid Demand 2
Phosphates below 100ppb.
Any help would be sincerely appreciated.