This is the cover I built over the head. It hinges up for access. It's a good spot to sit and a good place to store day bags. The cover mounts to an oak strip attached to the outboard bulkhead. This strip had to be tapered to make the face perpendicular to the main bulkhead. (See maintenance log for 6/15/94)
CAD Drawing of the Head Cover
Interior Layout
Marine Sanitation: Fact vs Fokelore ... excellent aritcle on sanitation systems at boatsafe.com