Originally Posted by Gustavo
Yes about 8/9 psi. I did run it up to 30psi trying the hole shake thing put I purged it and let it sit at 12 psi for about two weeks. I then set it at 8 psi for a week
Ah. Well, shaking it at 30 psi would do it.
If your keg is currently at 40 degrees, 12 psi is more like the correct pressure.
You can try purging it until it's no longer overcarbed, by pulling the pressure relief valve often.