Originally Posted by cbw
The Better Bottle folks recommendation (on its website) to slap the carboy tells me they really don't recommend using a drill mounted degasser.
I'm not sure that "do not recommend" is the right phrasing. Has anybody actually asked them? They are trying to point out a "benefit" of the BB, ie something you can't do with a glass carboy. BTW, I tried slapping a BB and it didn't work for me. But I didn't know about the "slap opposite sides, vibration" thing.
I have also read about using a tennis ball in the dimple on the bottom. Again it didn't seem to work for me, but I was probably too gentle. Maybe banging the bottom on opposite side might work.