The water pump in our Landau was originally installed next to the bed in a cabinet, and was very disturbing when sleeping. After tracing out the related plumbing from the under bed fresh tank, I was able to relocate the pump down into the wet bay where all the valves and hookups are. I mounted the pump on a vibration damping folded foam rubber mouse pad, and connected it with flexible hose instead of rigid piping. Now we can only hear a slight hum when the pump runs if everything else is quiet. We also have a 2-gallon accumulator tank to minimize pump starts/stops.