2nd what Jimbo12 said. The water pump and the are under the couch, along with a spaghetti like bunch of wires and pipes. Prop the couch up part way, just before it flops down.
I try to shut off the city water when we are connected but not around. Have had hose issues more than once, only to return and find a muddy mess, unless somebody happened to notice and shut it off.
BTW, we store the ladder for the front bunk on top of the water tank, and a few other things under there, too.
Bad decisions make great stories!