For those of us who have the "seasonal" above ground pools, I'd like to know a little more on proper sizing of pumps for these types of pools. I have one of those metal frame pools (15' x 42") that came with "everything". But, I don't think that the pump is sufficient for the pool size. Just when I think I have things going well, the water starts to get cloudy, then green and I have to start all over again! I leave the pump running every night for 5 hours, but I just can't keep up with it. I can't figure out what I'm doing wrong? You're the expert - do you make house calls? Signed - New guy