Could be both. If you go the used tank route, make sure they didn't puncture it.
When you get it home, throw some small nuts and bolts in and some fuel system cleaner and about a gallon of gas. Shake well. Drain through a piece of cloth. The gas can be reused after being filtered. That'll get at least MOST of the gunk out of the tank.
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Thursday, April 5th, 2012 AT 7:07 AM