On Jan 15, 4:41*pm, wrote:
On Fri, 15 Jan 2010 15:36:05 -0600, "Leon"
wrote:

Understood, but going beyond *what the instructions called for, do you know
of any reason that you could not use an air tight 20 gal container?

Is the dust dropped in or blown in? If it's blown in, wouldn't an air
tight container interfere with the collection of the dust?

It's dropped in. It spins around the cyclone and stays on the outside
edge due to centripetal force. The air flow stays in the center
moving in the opposite direction of dust flow (fall due to gravity).