Yahoo Message Number: 71696 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/71696)
I find that if I allow the fill pipe to "burp" on mine a can add 10-12 gallons after the nozzle shuts off. That may account for the location of the fill pipe relative to the top of the tank. The opening you place the nozzle into is what must be above the top of the tank to get a true fill.
Bob Wexler
SOB