So I purchased a house a year ago that previously had a pool that right before I purchased the house the pool got destroyed by mother nature. So I have a nice all around deck build for a pool but no pool.
This past week I stumbled on a used pool in the classifieds that I couldn't pass up the deal. Same dimensions as my deck and all so I bit the bullet, the pool itself is in great shape, no rust anywheres. Came with all the pumps etc, and I even had the stuff from the previous owners so now I have doubles along with a heat pump as well. The pool in question is a 21ft, 52" high.
My question is, in my deck area the ground was already set and levelled previously now before I start putting in this used pool (I am going to put in a new liner) I want to figure out what should I be putting under the pool? Currently its not super fine sand but some sort of sand/fine rocks.
I am debating whether or not to do foam? However I am hesitant and I've read people claim the foam will separate and cause gaps and it will be felt inside the pool and could damage the liner.
The other question I have is, if I were to do foam. Would I do the foam only inside the pool walls or would I make the foam extrude about 3-4" outside the pool wall and let the actual pool supports rests on the foam as well?