Hi pool people! I've had pills all my life but now I'm in charge n i havent had luck w pool store people so here goes.... I have a decend filter out 25000 gallon pool chlorine doesn't matter what it is the water is cloudy I think it's a prostate problems I drain the pool and need to know do I need to clean the pool with anything before I refill it it was green I don't know if I need to remove whatever is making it cloudy before I refill or not??? I just can't handle the swamp behind my house anymore I really like to go for a swim. This is the first time I've ever posted in the forum so please be patient with me I have no idea what I'm doing. So thanks to all you pool pros for sharing your knowledge.