Installing New Holding Tank in GB 42
I have a leaking holding tank in my 30 yr old GB 42 and got great guidance from this forum on a replacement tank from Ronco plastics. For anyone who has done this project before, one question: the old steel tank is tightly fit in an opening between the engines that's just under 16" wide. the new plastic tank is only 13" wide so I'll need to use a material to support the tank's sides and fill the gap, approx 1 1/2" on ea side. First thought was using wood. Also thought of a foam fill. For anyone who has done this before, please advise.