On Wed, 13 Feb 2008 18:52:17 -0600, with neither quill nor qualm,
"jusme" quickly quoth:

Well, guys, I just want to empty 55 gallon barrels of oil as soon as
possible cheaply.

I want to build up 2 to 4 of these things.
Oil will be dirty. Actually, it is wvo.

If they're dual-capped barrels, perhaps you could pressurize the small
hole with air and pipe the large outlet for a quick and dirty emptying
for a lot less cost than pumps. Heat 'em for quicker emptying yet.
Storage in a black-painted (solar heated) building would get you the
heat free.

Here's another way, but it ain't cheap:
http://www.oiltransfer.com/files/200..._Farm_Show.pdf

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SALMON -- The Other Pink Meat