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I typically use my thermowell for the carboy bung/stopper and for my blow-off (when needed, strain dependent) I use a 3 piece airlock with cap and bell removed. A thick wall 3/8 ID tubing for my blowoff hose fits right over the airlock center piece.
Some people like to use the orange hoods, but a 1” ID tube jammed into the hole works well too. In a pinch, 3/8 ID tubing will fit over the center post of an airlock.
So I was just gifted a glass carboy. I was wondering what do I need for a bung and blowoff tube set up? I've never used a carboy before so I dont know what to purchase.
I forget the diameter... 1"? 1.25"?... but I have a length of hose that fits right into the neck of the carboy. No bungs or caps needed.