Hi! I'm new to posting, but I've read and researched for weeks on here and learned a lot; I'm so glad I found this site! I want to put foam under my new install Intex Ultra Frame 16'x48" but I live in an area with limited access and supply. I see that the Extruded Polystyrene is the preferred type to use, but I can only get either the 2'', 4x8 Expanded sheets ($14.98 per) or RMax R-Matte Plus 3/4" 4x8 polyiso sheets ($14.25 per), (description here): http://www.homedepot.com/p/Unbranded...075X/100317820
I can snap the RMax with my hand, so it's not very strong, and it's got the covering which I've read can cause the taped seams to slip. And of course the white extruded stuff can break right off. I should also let you know that we get torrential rains and at some points it WILL be underwater; hopefully mostly fresh but possibly brackish sometimes.
Please tell me which one I should use! And, should I put a tarp under the foam as well as on top? (no grass)
I'm already a few weeks behind my original schedule, and my daughter and I REALLY want to chill in the pool soon. Thanks!