I've got a corny keg hooked up to a CO2 tank and the pressure was set to 30 psi for a couple of days. Now, when I pour a beer out of that keg, it screams out of the tap and is nothing but foam top to bottom. I let it sit and when I can take a sip, the actual beer is not really carbonated. It's kind of flat.
Stupid question but, WHAT GIVES??
Thanks in advance for any replies.