[rohrmann]

You might want to get into the area behind the convenience center, if your rig has one, and check to see if one of the PEX lines hasn't folded causing a restriction in water flow. This is a photo of our plumbing area, and it's so congested that a line could easily bend if it had a curve in a run. Also, I've attached a single line drawing I made some years ago of the plumbing behind our convenience center. I'm also wondering if your pressure regulator has failed. Do you have a pressure gauge on the hose connection in the convenience center, so you can see the incoming pressure?