Hey, first time user. trying to restore my first boat, a '75 aquasport 19.6. I have completely tore everything out of the boat, and im tearing up the water logged floor board to replace it. I have noticed that ants have infested my poly-u-foam. The boat is in relative good shape and i want to do as little possible cutting in the hull and since the foam is contained in two runners about the length of the boat it makes to difficult to get to. Any suggestions on how to get out old foam without tearing up the boat real bad? Thanks!