We recently got an above ground 15 x 42 inch metal frame pool, filled about a week ago. We are using Baquacil. Everything was fine until it rained 3 days ago and the water within an hour turned green. Checked the next day with the local pool store and was told to add 1/2 gallon of oxidizer and that should clear it up. We had also previously added algicide. It appears to have turned the water brown, I am assuming dead algea? Have been running the filter constantly since. Chemical balance seems in check. Pool store couldn't seem to offer any other suggestions or tell us approx how long to wait before doing something else. Pool doesn't seem slimy but water is very cloudy brown. Just looking for suggestions as to what else we should do. Do we just have to wait longer? We are getting very frustrated and are considering not having our pool next year if this cannot be corrected.