Just joined today. I had my pool opened a coupld of weeks ago. It was very dirty and the pool store vacuumed it a couple of times. It is still cloudy. Total Chlorine 3.5, Alkalinity 68, PH 7.5 and CYA 0. Per stores suggestion just added 1 bottle power floc to the skimmer and have the pool on recirculate. They suggested turning the pump off in 2 hrs for 12-24 hrs and then vacuuming to waste. I am skeptical that this will work. Any ideas ?