I have a Class A RV and when it comes time refill the propane tank I have to drive to a dealer or propane company who can fill the tank. If I'm camping and run out I have to disconnect everything to go fill the tank. Is there a simpler way to do it? Such as a mobile propane truck that can come to the camp site? Or, can it be filled by a portable propane tank through a quick connect thats used for hooking a grill up to?