- The amber bock keg, is it HB or is it a commercial one?
- Do you have one way valves on your gas lines? Is the amber bock backing up into your gas lines?
- Have you tried just hooking up one keg at a time?
It almost sounds like the bock is overcarbed, or at least compared to the ESB, hence the extremely fast pours and would require many purges to get the pressures to equalize.
Additionally, do check that gas is flowing out both gas out lines, then check and see if the ESB keg is under pressure (does the prv vent gas?), then check if the esb will dispense beer (use a screwdriver/fork or something else with a sanatized cloth or paper towel wrapped around it and depress the poppit on the gas out side to see if beer comes out. If the gas is flowing, the keg is holding pressure and beer still does not come out you probably have a clogged dip tube. if all works properly it may be the Qucik Disconnect.
If it is the dip tube you can try shooting a touch of gas in the beer out line (swap the disconnect to the beer one on the gas line as if you mix up the disconnects it is a huge PITA to get them off again) to dislodge.