Author Topic: glass carboy blow off tube ?  (Read 676 times)

Offline golfgod04

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glass carboy blow off tube ?
« on: December 11, 2017, 05:56:36 PM »
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.

Offline Stevie

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glass carboy blow off tube ?
« Reply #1 on: December 11, 2017, 06:10:40 PM »
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.
« Last Edit: December 11, 2017, 06:12:16 PM by Stevie »

Offline narcout

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Re: glass carboy blow off tube ?
« Reply #2 on: December 11, 2017, 06:11:00 PM »
I think glass carboys usually take a #6.5 stopper. 

https://www.morebeer.com/products/stopper-65-hole.html?site_id=9

They also make universal carboy stoppers that are tapered.

https://www.morebeer.com/products/rubber-stopper-universal-hole.html

Or you could use a carboy cap.

https://www.morebeer.com/products/carboy-blow-hood-smooth-neck-carboys.html

For blowoff, you can attach tubing to the airlock or use tubing large enough to fit directly in the neck (for which I think the right size is 1" I.D, 1.25" O.D.)

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Offline brewinhard

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Re: glass carboy blow off tube ?
« Reply #3 on: December 11, 2017, 06:22:35 PM »
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.

Offline Slowbrew

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Re: glass carboy blow off tube ?
« Reply #4 on: December 11, 2017, 08:52:57 PM »
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.

I used to do this all the time but the base of the 3 piece air lock tended to get plugged.

What I have been doing for the past 2 or 3 years is cutting short pieces (3" or so) of a plastic racking cane I broke.  I put a section of tubing on the 3" pipe. 

I've never been sure what size tubing to use to just stuff it in the neck.  1 1/4" OD just got put in my notes file.Thanks!

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Offline golfgod04

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Re: glass carboy blow off tube ?
« Reply #5 on: December 11, 2017, 11:19:47 PM »
thank you! parts ordered!

Offline Robert

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Re: glass carboy blow off tube ?
« Reply #6 on: December 11, 2017, 11:40:19 PM »
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.

If it's a 5 or 6 gal. carboy (I'm not sure about 6.5) the 1" id tube fits great and is my preference.  It's simple (fewer parts=fewer problems) and anything smaller (caps, tubes on locks, etc.) has the potential to clog, causing the blow off to blow out. 
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Offline jkirkham

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Re: glass carboy blow off tube ?
« Reply #7 on: January 18, 2018, 07:18:43 AM »
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 use a thermo well and/or a bung, depending on what I am making and if I need good temp control. I run about a 2-3’ of 3/8” tubing from the bung into a growler that has sanitizer in it. Depending on the blow off, for cleaning I just soak those materials for a long duration. And use a 4’ pipe cleaner to get residue off the tube. After a few days you can take your blow off tube off and replace it with an airlock.

Recently I have only used blowoff valves, I used to leave head space re continue to replace air locks.
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Offline Kevin

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Re: glass carboy blow off tube ?
« Reply #8 on: January 19, 2018, 07:29:55 PM »
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.
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Offline Robert

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Re: glass carboy blow off tube ?
« Reply #9 on: January 19, 2018, 07:53:21 PM »
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.
1" id... Or just ask LHBS for a blow off tube, they probably stock this diameter!
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Offline PAPAWOODY79

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Re: glass carboy blow off tube ?
« Reply #10 on: January 30, 2018, 02:31:43 AM »
1" tubing, into an old pitcher filled with star san, and the pitcher in n old ice cream pail.

Offline PAPAWOODY79

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Re: glass carboy blow off tube ?
« Reply #11 on: January 30, 2018, 02:57:11 AM »
sorry, couldn't get photo bucket to link.
« Last Edit: January 30, 2018, 03:01:51 AM by PAPAWOODY79 »