Last night, I tried disconnecting both of our kegs from the taps. The first one worked without any problems. The second one, however, started leaking beer. I reconnected it and cleaned up the mess.
Here is what I think cause the problem: When we first used the kegs, the connections would not go on. I took the empty one back to the store and they said the popits needed to be replaced. They did this AND over-tightened the posts with an automatic tool. When it came time to bottle, the post would not come loose. I strained so hard (using a wrench and a hammer) that it bent to the side--without coming off. I took it back, and they took it off for me. When we but the beer in and turned on the CO2, beer shot out like a fountain. I had to turn it off and manually fit the popit back in the post. My guess now is that the tilt of the post is making the popit not go straight up to seal properly.
If this is the case, should I tried to manually to bend the post back into an upright position (after we drink all of the beer and depressurize it, of course)?
I want to disconnect the taps so that the kids can't get to the beer.