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Old 12-21-2013, 04:41 PM
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mach4 mach4 is offline
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Location: San Diego County, CA
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Quote:
Originally Posted by OM617YOTA View Post
My system goes:

VP -> Check valve -> Vacuum switch -> Vacuum reservoir and various loads

When the VP shuts off, it will "bounce" quickly three or four times, I can hear the relay click and the VP actuates very briefly. Can't be good for the relay or the VP, and I'm confident that a vacuum switch with turn-on and turn-off points separated by at least a small amount would fix this.
Yes, that definitely sounds like a hysteresis issue. I don't see any issue with your setup. That's precisely what I had in mind for mine.
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