Hey all, I built a jockey box with 25' of copper coil, about 3' of 3/16 beverage line and 5' of 3/16 line between the copper coil and the shank (5" shank). I got a keg of National Bohemian from a local liqour store and hooked it up to a d coupler with a co2 tank set to 12 psi. I am having a big problem with foam. Every glass (even after 5 pints) is majority foam. This is my first effort to use kegs/legging equipment. Any idea of what I can do to fix this problem?