Hi, I drilled in a Stout tap Saturday night and hooked up my system. I assume that the beer I had was too carbonated also - at least for nitrogen. I get about 1/4 to 1/3 foam once it settles out. Then within minutes, the foam goes down to about zero - or at least before I finish the glass. I thought that with the nitrogen, the foam would last longer. Does the foam dissapear because there is too much CO2, or does it take longer for the nitrogen to get into the beer?
I have my beer gas set up at 30 psi.