I have a 14,000 gallon above ground pool. It uses a older Hayward sand filter "GM series high flow". It has a effective filteration rate of around 1.2 which I was told is very small. As a result to keep my water clear I have to run the pump 24/7. I put it on a timer once where I had it cut off at around 10pm and cut on about 6am and the water started to turn cloudy in days. Anyway I found a S244T (3.1 filteration rate) on craigslist for 75 bucks (http://smd.craigslist.org/for/4554945891.html). I was told by some on here that I should get the biggest filter I can get. I have a Hayward Powerflow 1HP pump. Is the pump too small for the filter? Also Is this a good buy for my situation?