View single post by flatlanderep
 Posted: 06-06-2007 06:07 pm
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flatlanderep



Joined: 06-24-2006
Location: Charlotte, North Carolina USA
Posts: 61
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Mark - By vacuum valve, you are referring to the actual piston correct?
If so, what measures need to be taken if the piston does not return to its normal position after a given amount of time?