Thread: Let's Talk California Smog
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MrGST MrGST is offline
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Join Date: Feb 2008
Location: Carlsbad, CA USA
Posts: 123
A check valve is simply a one-way valve. Hook up a mity-vac or similar and ensure that one side holds a vacuum and the other doesn't.
Old 08-25-2011, 11:15 AM
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