I have what I call a "Knockoff" a Bestway 32' x 16' above ground pool. It has only 1 return that's about 1/4th way down from the end of pool. It came with a really small pump & filter that I switched out the same year I purchased the pool. It also didn't have a built in skimmer so when I had the pool hard plumbed I also had a through the wall skimmer put in. My biggest complaint about this pool is that due to there only being 1 return & the location of the return there's poor circulation. I've tried the eyeball, & the circulator & neither helped much at all. I would appreciate any advice at this point as I spend more time trying to keep the pool clean then I do enjoying the pool & it's just me that uses the pool. I have a Sta-rite S model T200BP pump & Hayward S180 Pro series sand filter.