Just picked up a used 15x30' AG pool today, and will need to reinstall it. I'll be doing a big overdig and "burying" the pool (no backfill against the walls.)
The biggest battle here is with the cold, and heat loss, so I'm going to be insulating everything as much as possible.
Lots of folks here use rigid foam when they install concrete pads, so I was wondering if you could do the same thing under the pool liner? I'm thinking of over digging for the supports, then adding 2" or so of rigid foam, and maybe a layer of sand to cover the joints (they are 4x8 sheets). I'd overdig to make sure the foam (cut to fit the oval inside) would sit flush (including sand).
Is this the way to go, or is the gorilla stuff an insulator too? i'm insulating the sides too.