I have reviewed some answers re: leveling above ground Pools. I have used "all purpose sand" vs. "play/beach sand" Will this sand be OK before I actually lay down the ground liner?

This sand is fine for under the liner and should be at least 4 inches deep. Level it with a 2x4 half the diameter of the pool. Sweep in a circle. Do not use sand under your perimeter ring. That must be on block or solid soil.

:D
This sand is fine for under the liner and should be at least 4 inches deep. Level it with a 2x4 half the diameter of the pool. Sweep in a circle. Do not use sand under your perimeter ring. That must be on block or solid soil.

How about foam insulation cut to retro fit underneath and around

You know this thread is 2 years old, right? No on the foam.