Hey, i'm sunpop65. I live in the foothills of NC. I have been a pool owner of a 18x36 oval shaped aboveground pool, 15,000 gallons, for the past 9 years. The first 6 were great, but last 3 have been HORRIBLE. The pool never gets completely clear anymore. We have changed sand and gotten a new pump, but still same problem. Looking forward to talking with someone here who may be able to help.