I have an old SeaTruck landing craft that I've been restoring for awhile and I'm wondering if anyone out there has any experience with these boats? I have some water in the hull and I'm wondering if they were designed with limber holes in the hull or if each section of the box framed hull were totally sealed? I've already re fiber glassed the hull so I'm not to keen on poking holes all over the bottom to find water pockets! HELP!