Hello. I'm new to the forums and glad to be here. I have a friend with a Jayco 298 that has no water pressure at the sink in the kitchen. Everywhere else is halfway decent, except for that area. This problem just occurred one day out of the blue and I'm wondering what it could be. We change the water pressure regulator outside, and the pressure is good. We blew a hose up the other day but luckily no interior Plumbing. Thank you