This happened at oceanlakes family campground, myrtle beach, sc. I have a plumbing compartment on drivers side with many valves. The valve in mention was cold water valve. The pressure completely blew the plug with chrome plated valve handle out. I would push it back in, turn on water and it would blow out again. Now I know I could go practically anywhere and buy a valve and have it installed but it would not be same as original and different from the rest unless i choose to replace all of them which may not be a bad idea since coach is 11 yrs old. Looks like the whole back panel needs to come out to inspect plumbing for any further damage, this panel needs to come out to replace the valve itself i would imagine. Called Beaver/monoco folks and you know the deal, they only have parts info for 2002 models and above. Since I have a 2000 patriot they want me to take pictures. If there are any folks out there who knows the mfgr of these valves, this might be of some help.