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Old 08-25-2012, 12:35 AM   #11
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Quote:
Originally Posted by joetito1 View Post
Yes



I kept it like that for a week and didn't have any problems, nothing was sucked back in the fermentor.
You got lucky then!
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Old 08-25-2012, 02:13 AM   #12
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But wouldn't there need to be some sort of counter pressure for the liquid to drain back into the fermentor? I guess I don't understand how that would be possible...

 
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Old 08-25-2012, 02:32 AM   #13
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Quote:
Originally Posted by joetito1 View Post
But wouldn't there need to be some sort of counter pressure for the liquid to drain back into the fermentor? I guess I don't understand how that would be possible...
no, just for gravity pressure to exceed the pressure in the fermenter

 
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Old 08-25-2012, 06:55 AM   #14
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But wouldn't there need to be some sort of counter pressure for the liquid to drain back into the fermentor? I guess I don't understand how that would be possible...
Why would you risk it? What benefit is there to having the fermenter and blow off reservoir reversed like that? At least have them on equal ground.

 
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Old 08-25-2012, 11:29 AM   #15
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Quote:
Originally Posted by joetito1
But wouldn't there need to be some sort of counter pressure for the liquid to drain back into the fermentor? I guess I don't understand how that would be possible...
During fermentation the yeast create heat. That raises the fermentation vessel above ambient temperature. When it cools off those couple degrees it will creat a vacuum.
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Old 08-26-2012, 02:41 AM   #16
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Why would you risk it? What benefit is there to having the fermenter and blow off reservoir reversed like that? At least have them on equal ground.
I honestly didn't know there was a risk of that happening. It was my first time dealing with this kind of situation and I acted pretty quickly once it exploded all over my floor. I wouldn't ever set it up like that again knowing that there's that possibility.

I was asking that because I was more curious HOW it would happen, not that I thought what I did was the right choice.

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Old 08-26-2012, 02:49 AM   #17
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Here's just one example of probably 100's of threads on this forum...
http://www.homebrewtalk.com/f39/1-2-...carboy-320466/

So, even if you aren't sure of "how" it can happen, just be aware that it does. For future reference!
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Old 08-30-2012, 02:27 AM   #18
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Originally Posted by JonGrafto View Post
Always use a blowoff tube. I learned my lesson the hard way just like you.
++

I had several beers in a row literally launch the top of an airlock onto the floor before I learned that lesson. I never had a mess quite like the OP though.

 
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