I had baquacil for the last 15 years. After the first few to 3 years my pool was cloudy. I liked baquacil because I did not want to check my pool chemicals daily. It was OK for the kids but they got older and moved out and it's only myself and my wife using pool. Now I want my pool to be clear again. I opened the pool last week and had a lot of "sludge" on the bottom. I tried to siphon most of it out and now the water is brown. I talked to a person at a pool store and they said I had to drain it all out for the conversion to chlorine. so I stayed with baquacil for this year. Probably a mistake. I dumped in a half gallon of sanitizer as requested and after 2 days I still have brown water. I have a 15 x 4 foot, above ground pool with a new 1 hp sand filter. Any suggestions for this year?