Just purchased this Hunter 36 and Peggy's excellent new book. I'm looking for information from any Hunter 36 owner that has an installed holding tank to find out where your's is placed. Ronco has a large listing of tanks, but I'm wondering what might fit just forward of the head on the STBD side. "Short Circuit" has a 15-gal bladder and parts that have not been hooked up for at least two previous owners. I'm wondering if the tank will involve cutting out a bulkhead and using some of the standing space below the removable berth cushion. I'd like to just drop it in to the compartment and perhaps only cut a larger hole in the fiberglass above the desired compartment. The current bladder has grommets, but is not attached to anything. I suppose I might use it, but 15-gals is a little on the small side even for 2 cruisers.