On Sat, 12 Dec 2009 14:49:01 -0600, the infamous Ignoramus22753
scrawled the following:

I have a rectangular fuel tank that has some rust and flaking paint.

I want to remove both and re-prime and repaint, so that the tank looks
less menacing.

Attempts to do it with a wire brush on a 4.5" angle grinder were kind
of successful, but too slow and painful.

I would like to find a better way. I heard that some flap type disks
are better than wire brushes and are particularly good at this task.

I would not mind paying extra $$ for one if I can save two hours of
grueling labor.

Any ideas?

Yeah, flap disks on your 4-1/2" angle grinder work well, but strip it
first, eh? Don't make a sander take paint off if you can help it. A
good knot brush ought to work fairly quickly, too, after stripping.

What final finish will go on the tank? That may determine your best
cleanup method.

--
Don't forget the 7 P's:
Proper Prior Planning Prevents ****-Poor Performance