Slow flow and then no flow

[jbarone]

I have two identical Sanke kegs and two identical couplers. One keg flows fine with both couplers and the other keg is having issues with either coupler.

The flow on the problem keg will start very slowly and foam a lot. I'll get about 4oz before there is no flow whatsoever.

If I open and close the tap, I'll get a little more flow each time, but not enough to get a full glass of beer. The gas is on and the keg is definitely holding pressure. It is not frozen. My temperature is in the low 40's.

It is IPA, so there could be some hop matter in there, but I have never had issues with this before. Any ideas?

Cheers!

 

[helterscelter]

I'd guess hops. Maybe try hooking the coupler up backwards and invert the keg to try and blow out the Speer and valve?

 

[day_trippr]

Totally sounds like the dip tube is plugged. Allowing time to pass between pulls allows some beer to work its way through the plug. Should be an easy fix...

Cheers!

 

[LLBeanJ]

Partially blocked dip tube seems most likely.