Sounds like your water tank is draining because the city water passing by the tank outlet is acting like a venturi. Think of a carburetor and the venturi effect pulling the gas into it. Could be happening to your water tank.
George, Just download Adobe Acrobat Reader and use it to "OPEN" your downloaded tax form. You will be able to enter information in the boxes. But I don't think it will save the info if you close the form so you have to finish it all at once.
Look on page 22 of the manual you downloaded at the link in above post. The city valve is opened 1/4 turn while the city water is connected to the coach. That fills the tank. It's on page 22 in the manual.
