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drill carboy for valve. it's a good idea?

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cicquetto

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I would like to equip my carboy of an exhaust valve. I had thought of this system

input of CO2 into the carboy


Transfer wort into the fermenter and subsequent introduction of pure oxygen in the wort


siphon


bottling


I might as well have a closed system and protected from oxygen without pumping CO2 under pressure.

it's a good idea?
 

Queequeg

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I have basically the sane system. To purge though you need to fill with star san and drain refilling the headspace with CO2. Flushing directly with CO2 isnt quite as complete. I only use this for IPA's though
 

day_trippr

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Bad idea. Way too unpredictable what the outcome will be.
Could shoot a crack immediately, or maybe later after you've been lulled into complacency...

Cheers!
 
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If you have access to a polarimeter I'd advise checking for undue strain on the glass. If it is present you need to be VERY careful or the glass will fracture quite unpredictably!
 
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cicquetto

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I do not have it. soon i'll apply the valve and I'll start to do some test.
 

claytonisbob

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How would this work for bottling? You're going to fight getting trub in your bottles/keg draining off the bottom. A flat bottom carboy isn't going to have the benefit of draining the trub off like you would using a conical.
 

jmcquesten

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How will you hold the nut on the inside when tightening the valve?
 
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cicquetto

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I think all of what you want to achieve could be done with this dual port carboy cap:
yes, it is a cheaper solution, practical and safe. with the valve, however, I can have better control on oxygenation, I can take a sample to check the FG, do not produce foam in siphoning and is easier to bottling.
 
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