Ok, so here is another dumb unlevel Intex pool question. Long story short, we picked this used 15' 48'' Intex metal frame from a friend and thought we had it on level ground. Of course, its about 4'' off. I didn't think it was a big deal at first, but now starting to question my judgement. Its been up about two weeks and we have swam everyday with no apparent problems.
What are my options for a cheap way to level the ground. We rent a house and are looking to move this summer sometime.
Here are a few pictures: