J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Replacing Head

I think shelf is screwed in from the bottom as it has formica on it. There should be no valving only the hose that runs thru in to the V berth area. It's been about 10 years since I replaced all the hoses so the memory is a little rusty but you should be able to work the replacement hose thru with out issues