Hello all, I need some serious help. I am currently tilling up leveling and compacting my yard to put up our 18×48 coleman vista series 2 pool. We don't want to go the sand route under it because our backyard isn't very easily accessible with a wheelbarrow. We were hoping to go with insulation foam but not sure which one. We don't have the owens corning available in our area so we can't use that. I'm hoping to spend the least amount with a good profit. I was hoping to do at least a 1in foam. Please help sos lol