what do you people pay for water? around here filling that tank would cost $4.00 max.
another trick would be a little water and dry ice to force the flammable gases out of the tank. if you could get the dry ice in in the first place, but this is what we would do when i worked removing/cutting burried fuel tanks.
but seriously, how much does water cost in MO.?
edit: i just looked it up, and from what i can see online, st louis charges 1.77 per 100cuft which would convert to about 2.25 for 1000 gallons. why not just use your garden hose and buy one less Bud after work, should about cover it.