I bought a 1/4 keg of Abita Amber and threw it on my 12 psi 3 tap keezer w/ 10 ft lines and Perliks. I keep the keezer set on 4-5 C and the previous 4 sixtel kegs placed on the same sankey tap in it have behaved and poured spectacularly, as do and have all of the corny's of homebrew. As soon as I placed this keg on the tap i started getting foaming issues with just that tap.
I assumed that Abita must have a higher serving pressure than the 12psi/4-5C that I have been serving everything else on fine, so I turned the gas off the keg and kept pouring, then once the beer started dribbling out after a week and a half put it back on 12psi to re-carb.
I initially got 5/6 pint of foam that settled to ~1/3 of beer when the head died down. Frustrating. After this treatment, and a second repeat where I bled all the pressure out of the keg and left it off for days before re-pressurizing, I am still getting spitting for the first draw, as well as gas coming out of suspension in the lines although I am now down to 1/2, 1/2 on pours. There is no beer/gas leaks that I can see and this keg has not yet drained my CO2 tank over the month+ I have had it tapped.
So, my question is what do you think is the issue? temp stratification (I do not yet have a fan in my keezer, but my cornys/sistels seem to behave), still overpressurized?
What should I do? Keep messing with it, or suffer through half foam pours and just kill off this damn keg? Opinions please.