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

[cicquetto]

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]

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]

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!

 

[Ungoliant]

If your carboy is glass, do something like this:

http://www.familyhandyman.com/tools/drills/how-to-drill-a-hole-in-glass/view-all

That aside, I think it seems like a fine idea

 

[cicquetto]

the hole is done, 25mm thick!

 

[govner1]

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!

 

[cicquetto]

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

 

[claytonisbob]

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.

 

[cicquetto]

I fetch the wort 4cm or more from the bottom

 

[Pkrd]

I think all of what you want to achieve could be done with this dual port carboy cap:

From:
https://www.morebeer.com/products/sterile-siphon-starter-3-5-6-65-gallon-carboy-smooth-necks.html

Review:
http://brulosophy.com/2014/06/19/the-sterile-siphon-starter-a-review/

 

[jmcquesten]

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

 

[SleepyCreekBrews]

the question on my mind is if that valve is either Stainless, or plastic.

 

[cicquetto]

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.

 

[cicquetto]

the question on my mind is if that valve is either Stainless, or plastic.

a stainless 1/2 o 3/8 valve

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

I should use a special key long to slip into carboy

 

[cicquetto]

done


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