Keg cleaning

[MichaelE]

Weird thing happened today testing our manual keg cleaner. We have a setup similar to the Frankenbrew keg washing setup - keg upside-down, coupler with check ball/valve removed connected to keg, liquid goes in through outlet and into dip tube and then drains via the CO2 inlet. I was spraying water in and it was draining just fine. I turned off the water and was still draining. I then removed the hose sending water in through the dip tube which released any pressure and all the water in the dip tube came rushing out, but water stopped coming out the drain. There's still liquid in the keg, so it seems like it should still drain if the keg is upside down. Anyone know why this happens?

[mswebb]

Assuming you checked whether the coupler snapped closed. The only way to close the CO2 port is to close the coupler. Make sure you're using a standard washer on the CO2 port rather than the self checking (Thomsen? Thompson?) washers common to CO2 lines.