After getting my sterilite tub a couple weeks ago, Im gonna start working on it. Im gonna do 1/8" holes all the way around. Then Im gonna build a base of 1/4" plywood. Then for heating I'll electrical tape the 2 12"x11" peices of flexwatt underneath the plywood. Will the single peice of flexwatt be enough even though the tub is 16" wide and the flexwatt is 11" wide. Also what should I do with my snake while Im setting this all up and trying to get the temps right.