We just purchased this RV from a private party. When I hook up to the City Water intake there is leakage behind the panel. I was able to stop the leak at the valve with plumber tape then noticed water leaking in my storage area. I cannot see the connection as I think I would have to open the area underneath. Is that my next step or should I just try to replace the connection from the outside? Any suggestions? Thank you in advance for your responses.

