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post #3 of (permalink) Old 10-08-2007, 01:14 PM
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Join Date: Jun 2006
Location: Wakefield, NH
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Hmm, I was thinking a rubber test tube stopper with a hole thru it for the airline tubing might be used in place of your latex glove as a cork for the end of the syringe.

The potential weakness I can see for this design would be the use of cheap aquarium check valves which tend to eventually fail and get stuck especially when exposed to liquids with stuff dissolved in them.

I'd be curious to know how long it runs for before it is in need of repair.
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