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Old 11-23-2009, 05:06 PM   #1
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Default Blowoff tube for Better Bottle?

We just got a couple of 6 gallon better bottles and put them to work Saturday as fermenters. I rigged blowoff tubes using #10 drilled stoppers with tubing inserted in the holes. One of the batches had some crazy thick blowoff that wouldn't go through the small diameter tubing and pushed the stopper out repeatedly. I ended up just letting the blowoff ooze out of the fermenter for most of the day yesterday and was able to get the stopper to stay in last night. The question is, "what have you done to rig a larger diameter blowoff tube for your better bottles?".

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Old 11-23-2009, 05:11 PM   #2
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I bought about 3 feet of 1 3/4 inch outer diameter tube that fits pretty snug in the bottle. I then tape it up so make it air tight. So far it hasn't cause any problems for me.

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Old 11-23-2009, 05:15 PM   #3
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Fermcap does the trick. Also, I've found you really need to push the bungs into the better bottles (leaving about 1/8 - 1/4 inch between the neck and the lip on the bung). Otherwise, they like to ride up - lubricated by the StarSan.

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Old 11-23-2009, 05:17 PM   #4
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I think I'm glad I didn't have the stopper jammed tight. The resulting explosion would have been worthy of a photo expose.

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Old 11-23-2009, 05:36 PM   #5
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I have not tried a bung, but had no luck with the orange carboy caps. I now use the BB standard closure with the small o-ring and a 1/2 inch OD tube. That does the trick for me. No issues at all.

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Old 11-23-2009, 06:37 PM   #6
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I have used the #10 stoppers on my 6 gal. BB without incident. I also use the universal bung and have not had any problem but the #10 seems much more sturdy so I am a bit surprised to hear that you had trouble with it. I just plug the 3 piece airlock (minus the interior and exterior caps) into the stopper/bung and connect the tubing down the length of the airlock post. The other end of the tubing goes into a growler filled 1/2 - 3/4 with Star San and wrapped in saran wrap. I change out the Star San/Growlers when the solution gets gunky/murky. Has worked like a charm thus far and I have had some wicked blow off from some batches. Montanaandy

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Old 11-23-2009, 06:58 PM   #7
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Montanaandy - I tried sending you a PM but your mailbox is full. Where in Montana are you?

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Old 11-23-2009, 06:59 PM   #8
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Quote:
Originally Posted by thirdedition View Post
I bought about 3 feet of 1 3/4 inch outer diameter tube that fits pretty snug in the bottle. I then tape it up so make it air tight. So far it hasn't cause any problems for me.
+1......thats what i use with great results
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Old 11-23-2009, 07:03 PM   #9
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The orange caps are a little loose, but a quick round of plastic wrap fixes that. Alternately, the red caps are a good, snug fit if you can find them. I got some purple ones from AHS that were supposed to be specifically for Better Bottles but they're not even close so they just collect dust.

You can get a 1/2" ID hose over any of them. I usually cut the tip of the cap back a bit to expose the full diameter opening, since they do neck in a little.

Here is my orange cap with blowoff in action and red cap with airlock on my two BBs.



-Joe

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Old 11-23-2009, 07:23 PM   #10
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Joe's picture is my standard method also. My caps fit pretty snug so I don't have to do anything special.

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