I want to install water line cutoff valves in the belly behind the UDC to cut off water flow to the washer/dryer area of my 2008 Big Country 3250TS. I'm afraid of a leak in that area which could possibly flood the rig from front to rear. I don't ever p[lan on installing a washing machine. Where can I purchase water line cutoffs, clamps and tools to do this. I think the water lines are called PEC....?? Any help/advise is appreciated. Thank you. Dennis