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Unread 15-01-2010, 18:32
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Talking Re: Suction as a method for possessing balls

Quote:
Originally Posted by Culvan Van Li View Post
They didn't seem to think that a second shop vac in line with it provided a significant improvement, but they're looking for significantly lower pressure than a shop vac can provide.
Andy
I hadn't thought of hooking two shop vacs in series, but I guess that could work. I was talking about two stage impeller designs. The vac unit we used in 2008 was a two stage impeller, it had two impellers on one shaft, separated by a flow straightener. Some vacs have wide single impellers for max flow, some have two narrow impellers for max delta P.


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