Originally Posted by dstar26t
I built one a while ago. Stopped using it because it was much easier to use a wand to get repeatable results.
I built one also and quit using it. You have to tear it down and clean it often or it gets nasty inside. Also if it starts foaming too much you can't get all of your wort in the fermenter until the foam settles.
It was more of a pain then it was worth so I went back to dropping the stone in the fermenter after it's filled. Much easier to control.