Blowoff Tube Diameter?

[sheppard107]

What diameter blow-off tube does everyone use? I had to use the 5/16" stuff I had lying around for my last batch, and let's just say I wouldn't have been surprised to come home and find brown ale all over the rec room due to the line getting clogged. Do you just get the biggest diameter you can jam into the carboy?

[jeffsmith]

I use ½" silicon tubing. Jam it on the tube on the inside of an airlock.

[RossBee]

I use ½" silicon tubing. Jam it on the tub on the inside of an airlock.

This.

[GAM]

3/8" on a orange cap works too.

S

[sheppard107]

Great, thanks. I hadn't considered using the airlock as a 'connector'

[jason.loxton]

I use 1/2" silicone too, but put it on a brass hose barb like the one below. The threaded end twists quite nicely into a stopper, and the barbs hold the tubing snug. The stopper/barb/tubing combo can also be boiled as as unit, if one wishes. You can grab one from Canadian Tire, etc.

125-10-6.jpg

[Jimmy]

I used to use a piece of tubing (3/8" maybe) jammed into one of the caps from the 18.9L water bottles.

[spears104]

I have used two methods, both use 0.5`inch tubing. I bored out a standard 6.5 bung with a 0.5 inch drill to insert a 0.5 inch into the bung. I have also just put a piece of 0.5 inch ID hose over the `base`of a 3 piece air lock. I prefer usuing 0.5 inch as it does not seem to result in any back pressure dring fermentation.

[sheppard107]

Thanks for all the replies. ~1/2" tubing magyvered on the carboy in some fashion seems to be the consensus.