I am having some noob kegging problems. I have narrowed a foaming problem down to a faulty disconnect, I think. 3 keg system,2 hooked up and one has been foaming. I switched the line out to the other keg that was working right and that started foaming and the foaming one poured great. I took the disconnect apart and nothing looked out of sync. It seems to me the problem has to be in the beer out disconnect. Do I buy a new one or does anybody have any ideas?