Hello from Des Moines, Iowa. Just purchased last month a 15' X 42" metal frame pool by Summer Escapes. Rushed to put it up in the heat on what was thought to be level ground. WRONG. It became unlevel to the point of damaging the integrity of the pool frame, so was taken down and stored. Next spring we will be hiring an excavator to come in and level off the back half of the back yard. Our plan is to turn that half of the yard into an oasis of sorts.
Had an Intex pool several years ago with the inflatable ring and done the same thing...it was beautiful. I have never had problems with cloudy, green, etc. water. Chemical levels checked daily and adjustments made if necessary. Love it!