Thank you, I was trying to find my threads and was so confused where they had gone. I have been discussing everything through PM with another well known intex pool guy on these forums, and he mentioned it's best to build on virgin soil after digging down. I remember reading that also, so I'm not sure why the landscaping companies that did the work said to do stone underneath (prob because they are not pool guys). I'm just concerned that after 70,000 pounds worth of water gets put on this, it may sink more, since I'm already severely off level after I was told it was leveled. It may be off level now due to settling, or maybe they actually did not have it level. I know a plate compactor was at my house, but I never physically saw it being used.
I'm not overly worried about the materials used as a base for protection of the pool, I'm worried about any further settling after the weight of the water is added. I used a 2" XPS under the liner with 2" pavers. I didn't want to dig down with the pavers at all since it's gravel under the sand. Only concern is gravel sinking into the dirt, but maybe a very long tamping will compact it so much that it won't move. That's really my question here.
Thanks