Thread: Is checkvalve necesary?
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Old 30-09-2010, 04:59 PM
stevebez stevebez is offline
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Join Date: May 2007
Posts: 34
Default Is checkvalve necesary?
I have HFS6 with jets installed in off boost vacuum area. Is the HFS6 system "water tight" when off, or is a vacuum check valve needed?

Rgds Steve
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