We are new to RVing. We have a 2020 Thor Quantum. We are on a month-long journey. The first 5 stops, the water system worked fine. The next stop, hooked up and all we got was air shooting out with just a little water, then no water! The pressure at the hose bid was good. The water hose is new and the flow from it is good. We removed our pressure regulator and filter. There is no water leaking under the RV. Still just air and a little water, then nothing. Any suggestions? What other troubleshooting could we do? Is there a valve that we could have hit accidentally? Thanks for help