[Beaver]

I'm having a little troble with my home kegger. I switched a 1/2 barrel out that ran awesome & put in a new one and now I get half foam. Everything is new, this is only the 2nd barrel. The only differance is the first barrel was Busch & the new one is Bud. I tightened & lubed everything & checked for bad "o" rings & can't seem to find anything. After you draw a glass half full of foam, you can see the small bubbles coming up from the top of the coupler in the beer line. I ran into this problem at a party before with a jockey box where one barrel ran great & the next one was foamy. It turned out to be a bad seal on the top of the barrel. I switched it to a new one & ran great. This barrel does not seem to have a bad seal on the top of the barrel, causing me to drive myself nuts trying to find the problem. If anyone has any suggestions please let me know.

Thanks
Beaver