im getting very scared about having foam under my tank.i want to remove it but need some guidance from you guys.i know i need to drain as much water as possible.the problem i have is that my tank has corner overflows that drain out thruogh the bottom.the pvc plumbing plumbing runs through 4 holes in my stand.do i just lift the mostly empty tank on 1 side,take out as much foam as i can,then lift the other side.or do you think that i can slide a piece of plywood over the foam and leave it like that?