I've been having circulation problems all year on the bottom of my pool. I have a 28ft 17,500 gallon round above ground pool with only one return jet. I've tried aiming the jet in all directions possible (except up) to improve circulation on the bottom of the pool, but nothing has worked. Anytime the FC drops to the target level (well above min FC) the bottom turns green, except near the return jet. The previous owner dug the middle of the pool out so it's around 4.5ft deep in the middle, 3.5ft deep around the edge of the pool. I've read the reviews on "the circulator," and it seems like a shady product that doesn't work well. Any ideas on how to improve circulation for next summer? Are there any underwater fountains that I could hook up to the return jet that would sit on the bottom of the pool? Thanks for you help!