On Mon, 30 Aug 2010 09:36:47 -0500, CaveLamb
wrote:

55 gallons is a bit over 350 pounds to shake up!

For those wishing to mix large quantities of whatever, up to the
consistency of drywall mud, a Jiffy Mixer is quite effective. It's
not your ordinary drill-powered mixer. Comes in every size from pint
to 100 gallons. Little or no air entrainment when used properly.
Stainless steel. Just a satisfied customer.

http://www.jiffymixer.com/
--
Best -- Terry