Both ends of the 1/4" Looked like that. A rolled flair 'Cheerio'?
Seems like when you install it, you make the flair with your wrench..
I think could feel the copper flowing inside the connector.
It went almost 4 hours without any loss.. Stayed right at 202 PSI..
I'm trying a vac run right now. My hoses leak a bit..
Left the system idle during supper, shut off the pump..
1/2 hour later, the system was still at 400 microns..
Takes a long time to get this big stuff down.. Maybe I need to re-flair?
Edit:
Once I had a stable 200 microns and was able to let it sit for a half hour and come back
and turn on the pump again and be right back at 200 microns in a few minutes..
(Get a pulse up because the cut-off leaks when turned)!
I decided to release some gas into the system. Do some more bubble tests later.
Opened the small (liquid) valve for a few seconds, turned it off.
Attempted to open the large low-side valve, and
it's stuck!
Can't get it open! It takes a 5MM allen. I'm using a 5 CR-V and it's flexing, big time.
I have a Right-Angle Impact Driver, but no 5MM bits..
https://www.amazon.com/Craftsman-9-1.../dp/B00436U5GG
Break-free? Any suggestions?