You could always fill up at the phone companies pressure bottles that are bolted to the telephone poles...oops, did I say that? BTW, they have a clip on chuck already on them to hook to the pressurized cable. How long does it take to fill a small 40 cubic foot bottle with N with that rig?
It wouldn't take long, it's connected to my compressor and it fills my tires with nitrogen just as fast as it would with air. I would imagine a 40 pound nitrogen bottle wouldn't take too long to fill.
