The propane tank on my 2008 Hawk was registering a little over ½ full on the tank gauge (horizontal position). Yesterday, I was taking a couple of empty BBQ tanks to have them filled, so I pulled my Hawk’s tank and figured I’d top it off as well. I was surprised when the propane attendant was not able to get the tank to accept anymore propane. We thought maybe the OPD valve was stuck, so we tried at least three attempts to “jar” the tank valve, and attempt to fill - nothing. The tank would not accept any additional propane. I’ve not yet weighed the tank to compare with one of my newly filled 5 Gal BBQ tanks, but from just lifting the tanks they seem to weigh about the same. The attendant felt the tank was already full, despite what the gauge is reading. I’ve camped a total of 6 nights since I last filled this tank, and two of the days / nights it was pretty cold so I used the heater a number of times. During each trip the hot water heater was on most of the time, and my fridge was running in propane mode the entire time. I find it hard to believe the tank was not down a couple of gallons, just like the gauge suggests. Anyone else have a similar experience? I’d hate to go on a long remote trip and not have a full tank to start with.