I'll be using 3/4" extruded polystyrene under my Intex 22' diameter pool. Is it advisable to place a tarp over and cover the polystyrene before setting the pool on the polystyrene?
I'm planning to tape the seams of the polystyrene sheets well using the Gorilla tape. I'm not sure whether it's best to cover the polystyrene with something before sitting the pool on it. I thought I saw where some people reported getting slime or mold between the pool vinyl bottom and the covering they had under the pool. I have a roll of heavy vinyl type material which I thought of using, this material won't degrade and I believe one use of it is for making body bags. A vinyl type covering may cause moisture under the pool, I don't know. I considered covering only the outer circumference of the polystyrene of about one foot and wrapping it underneath to give some protection to the exposed portion of the polystyrene.
Any help, advice or personal experiences would be appreciated.