I’m a newbie to a Cabo 31 Express 2002. Survey showed there was water to the sinks. Boat was winterized, but I had to fire boatyard before all systems were checked out.Is there a valve to turn on water to sinks and shower. Have flipped on fresh water pump, but have no water flow. If there is one, I am guessing it is behind the fridge. Anyone have any words of wisdom?