On Sun, 05 Dec 2010 21:23:24 -0500, Bob Engelhardt
wrote:

Bob La Londe wrote:
http://www.amazon.com/Single-Sided-V...1598890&sr=1-2

How does this create vacuum with compressed air? Venturi affect?

If its a venturi wouldn't it use a huge volume of air?




Yes and yes.

Don't know about this clamp, but the similar device sold by HF for
removing moisture from A/C systems is quite noisy.
http://www.harborfreight.com/air-vac...ors-96677.html