OK... Before anyone yells at me... I know that the rule of thumb is to dig down to the lowest point. I did that. But now my question is that I would like the bottom of the pool closer to level with the higher side... Can I build up using a base with something like 3/4 processed stone, compact that, and then put the pool on top of that? I'd still use the sand and foam bottom.
I know the concern is for settling... But at that point if there is any settling, it should be uniform.