Well, that idea didn't work! I found that turning either of the cut-off valves
would let in a little air and drop the vacuum by at least 100 microns.
Much of the time it was more. Even just turning one a tenth of a turn would
let in some air. Flipping those things off and on was a no-go.
So, after taking the nitrogen pressure testing into consideration, we decided
it would be best to do just one long run and shoot for the best pressure.
That ended up being just under 200 microns. That was the point where
the meter stabilized and was only going down about 1 micron every 10 minutes.
The red
Stable LED was on.
This is the setup..
Getting close to 200!
It's 46.3 outdoors and it's 74 in here!
My wife thinks it's great..
