Hello,<br/><br/>I'm new to this forum but not new to Foretravel. In 2003 I bought a 89 Grand Villa ORED. I traveled in it from 2003 to 2010 and it is now stationary and my residence. In 2010 I bought an 94 40' U280 as a travel coach.<br/><br/>My problem is with the U280. My water system works fine with the water tank and electric pump, however the tank will only fill from the passenger...