Hello all...if someone could give some advice, it would be most appreciated. I have an above ground round 24x52 pool that has the one large square intake for filter instead of the 2 small round in/out like intex. I hooked my old intex sand filter/pump. 2800gph 14inch .60 pump. Intex specs say this should work for that size. It just does not clean pool..will end up with some algae on bottom and cannot get vacuum to run..which may be due to fittings. New pool was not set up for intex. Any opinions on what should work. Was thinking about buying filter and pump separate. Would a larger pump work with the 14 inch I have now. Thanks for any input.