Hi I have kegerator set up two kegs one Co2 tank running to the two with a jg splitter. I only have the two keg set up recent and when I was carving up the two kegs at same time put gas at thirty left for two days the. Dropped it down to serving pressure and was good to go.the issue I have now is that one keg has emptied have another one ready to connect and carb up was wondering if I connect it up take grey disconnect of other keg and crank pressure back up to thirty would this be okay or would there be gas coming out the grey disconnect I unhooked..