Quote:
Originally Posted by mrg666
To check if it holds vacuum, do the followings in sequence
- push the valve open from the port on the circular face
- then, block the tiny vacuum port with your finger
- release the valve, the valve should stay open
- release the vacuum port suddenly
You should hear a pop sound of closing valve. If valve closes before you open the vacuum port, valve is leaking vacuum. Try a couple times to confirm.
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Thanks mrg666 I’ll give that a try next time!