I recently purchased a 2002 Hunter 356 and am still learning all the systems. I am new to a boat of this size with so many systems.Last night I tried the cockpit shower for the first time and could not get it to work. The water pressure breaker is on and the galley sink, head vanity, and head shower all work fine. I messed with the cockpit shower hot/cold handles and the spray setting on the shower head, but no luck.I was reading my manual (what a novel idea) and saw that there was a water system manifold under the galley sink. I located the manifold and noticed that there is a "key" that fits on the various manifolds. I put it over the cockpit shower fitting and tried to turn it, but met with resistance, so I stopped. Is it likely that the cockpit shower manifold is part of my problem?