I have a 2016 coach Catalina I purchased it used our first trip when I connected my water hose to city fill and I went back later to check everything out I noticed that my fresh water tank was over fi...
This is a common question asked on a Jayco Facebook group. Many times it is the pressure check valve on the pump especially if the pump hasn't been used for some time. The check valve gets dry and sticks. Pumping some water from the freshwater tank can help to prevent that. That check valve is located on the power input end of the pump.