We got a NTU 2006 Jayco Baja 10Y pop-up. I am completely new to PUP's and am a little lost. I am fairly mechanically inclined so I am hoping I can trouble shoot these issues myself. I tried out the water system yesterday and have a few concerns. 1. I hooked up the city water and when I turned off the water and disconnected the hose water came shooting out of the city water hook up with pressure and continue to come out for a few minutes. 2. I then tried the water tank and filled it with the hose, or at least part way. I turned on the pump and it blew out the city water hook up again. I went and got a cap and plug the city water inlet and that stopped the leak but then the system would not pressurize where the pump would turn off. I also was getting a lot of air in the lines which would not purge out. Any ideas of how to address these issues?