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Fuel and tank weigh over 140 lbs, which is a lot to lift onto a shelf in the barn. )</font>
Thats what I was thinking. It's a little heavy (for me anyway) to be a "portable" solution, and 15 gals isn't enough for me to bother permanently mounting it to a trailer or anything. I would rather use 3, 5gal cans that I can move easily. Although, if this fits the bill for someone it's a lot more sturdy than plastic cans, and having a nozzle can't be beat.
As far as grounding, if you are filling the tank, by inserting the metal pump nozzle into the metal blitz tank you are (rather ineffectively, but adequately) "bonding" to the gas station grounding system through the wire in the hose between the nozzle and the pump.
To fill from blitz tank to tractor, you are correct, there would be no "grounding" unless you drove a 4' copper grounding spike into the ground and then mounted a bonding reel onto the blitz tank and hook it to the spike. If your tracotr fill is plastic like mine, you would then have to hook another bonding cable from the blitz tank or blitz nozzle (doesn't look like there's any bond wire in that hose) to a suitable ground on your tractor to then bond the tractor to your blitz tank ground.
This is how you do a proper transfer between truck and facility in tank farms for thousands of gallons of gasoline or #2, or whatever. I personally wouldn't worry about all that for a 15 gal tank of fuel, or even gas for that matter. No matter what you're filling, car or tractor, you should always touch your hand to the pump, then pick up the nozzle, and then touch your empty hand to the car to dissipate any static. That should be enough to keep it safe for small transfers.
I would worry much more about the ding bat standing there at the station filling the car up while talking on the cell phone and smoking. Geez....I took this from tank usefulness to a safety speech on grounding. Sorry to the original poster. /forums/images/graemlins/crazy.gif