City water supply issue on a 2007 Jayco 345BHS.

Problem solved, in the city water connection on the side of the trailer is a small check valve. It has a spring attached and a little plastic keeper I think that keeps that connection sealed off for when you do not have a water hose hooked to it. That keeper had broke and allowed the plunger to go in and sealed off on the inside of the valve. I just pulled all the pieces out and will have to get a replacement when we get back home. Thanks y'all.