The water pump for the sink on my boat is not working. The fuse is good, but I can't locate the actual pump to check it! The person from whom I bought the boat doesn't return my calls, so I assume that he doesn't know. The boat probably has had multiple owners, and I doubt that the pump is original equipment!I looked in the engine compartment, tried to see how to get into the cabinet that contains the sink, took the two small drawers next to the sink out...no joy!Can anyone help me? I was never shown the "inner workings" of my boat (again, by the guy who sould it to me), and I was too ignorant to ask! I have learned alot by just looking, and asking the FEW sailboat captains at the marina, but there is a lot that I don't know!