I kegged up a belgian wit (blue moon clone) the other day and started carbing it up. I decided to tap it and sample the beer but to my dismay nothing came out of the tap.
I did the sanyo conversion with the dual tap tower. I unhooked the other keg and popped the liquid out line from the "stopped up" tap on it and beer poured just fine so I know it's not the out line or the tap blocked.
So I know it's something in the keg. It's holding pressure just fine. I've removed the dip tube 3 or 4 times and it's clean with no obstructions. I even removed the poppet from the liquid out post thinking maybe it sticking and I got nothing
My only idea is that there is excessive trub in the bottom of the keg that clogs up the end of the dip tube. I tried swirling the keg up to see if I could get it mixed up enough to start a flow but nothing. I had this problem once when a bit of whole leaf hop from dry hopping made it into the keg, but I didn't dry hop this one and I was pretty careful not to rack any junk into the keg.
Any suggestions? I thought about trimming a 1/4" off the dip tube but haven't done it yet.