Defective Keg

[Dumbo2929]

Anyone have experience with a bad keg valve? I have used 5-6 kegs on my system (2 kegs, fed from one CO2 tank) with no problems. I just hooked up a 1/4 barrel of Wachusett Ale and after about 10 cups it stopped flowing, just spraying a little foam and a lot of CO2. The other keg, off the same CO2 tank is fine. I moved the keg and there appears to be something rattling around inside, along with the beer sloshing. Could part of the keg ball valve have broken from pressure or something else? Is there suppose to be things rattling around inside the keg, besides beer? Any help would be greatly apprecaited.

[Draught Prophet]

There shouldn't be anything rattling around inside the keg. You may have a defective stem (the pipe that allows the beer to run from the bottom of the keg to the top to the coupler). I’d call your supplier and ask for an exchange.
Check the seal on top for small rips or cracks, that will cause improper pouring. Also check you coupler to make sure all of the parts are in it (check ball & retainer). click on "replacement parts".