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Wouldn't need a vacuum, just attached, laminar flow is sufficient. With a vacuum, where do you dump the pressure you build? Because to have a vacuum, you get a free, no charge to you pressure gradient.
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
Last edited by Piotrsko; 06-15-2022 at 10:31 PM..
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