First: we're so glad that you found us! Welcome to the Family!
Second: Your description does seem to be a bit "less than clear"...
"Beved" is asking a good question: are you trying to fill the freshwater tank from the City Water hookup?
That won't work at all...
Give your dealer a call, and I'm sure that they can talk you through getting things hooked-up properly.
Good luck; let us know how this works out!