I just built a new keezer, and it can hold up to three kegs. I got a 3 way co2 distributer, and it was working really well for a little while. All of a sudden I am not getting any pressure into my kegs. When I let gas into the distributor there is no noise, but as soon as I open any of the valves there is a loud, groaning noise that seems to be coming from the distributer. Almost, no gas gets to my keg(s). I've checked the system several times for leaks and I'm not finding any. My local homebrew shop said the distributer could possibly be clogged. Does this sound correct? Does anyone have any other suggestions?