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Not Showing Pressure In My Barrel Airlock


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#1 niko

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Posted 28 November 2010 - 07:45 PM

I have a barrel (10 gallon) filled with wine that is situated among 9 or 10 filled carboys. All of my carboy airlocks are showing pressure while the barrel airlock never shows pressure. I am hoping this is attributed to the fact that the gasses are being released through the barrel staves and therefore my airlock does not show pressure. Is this correct or is my rubber stopper not seated in the hole properly.

#2 RedNeck Wino

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Posted 28 November 2010 - 09:39 PM

have you tried refitting the airlock and seal? wash the bung or seal in sterilizer and re-install. does the airlock have enough liquid in it? if it gets too low, the gas just floats out. Just a few thoughts. Jeff

#3 NorthernWiner

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Posted 28 November 2010 - 10:21 PM

Why do you have an airlock on your barrel? Is it actively fermenting? If it isn't, you should have a solid bung in it.

Steve Kroll
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#4 niko

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Posted 29 November 2010 - 06:16 AM

Once again does anyone think that I should be showing pressure in my airlock?

#5 Howie

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Posted 29 November 2010 - 07:32 AM

Once again does anyone think that I should be showing pressure in my airlock?

A totally sealed vessel should only show pressure (or bubbling) through an air lock under two conditions; either it is fermenting, thus generating CO2, or the volume of wine is expanding due to it heating up. First of all, a barrel is not totally sealed, like a carboy, as it is made of wood. Second, since there is a slight evaporation rate over the entire surface of the barrel, there is cooling taking place. So, to answer your question, it does not surprise me that you are showing no pressure in the air lock.
Howie Hart

#6 Juniper Hill

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Posted 29 November 2010 - 08:14 AM

I've got two barrels currently aging win, they both have airlocks that are generating negative pressure on the sulfite solution (never enough to actually draw it in, though). I assume this is because of evaporation of the wine. I need to buy more solid bungs for barrels.


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#7 Crazy Run Ranch

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Posted 29 November 2010 - 09:25 AM

Once again does anyone think that I should be showing pressure in my airlock?


Why are the carboys showing positive pressure? Still going through ferment or MLF? If so, then the barrel isn't.

#8 Purple Grin Winery

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Posted 29 November 2010 - 09:30 AM

My barrels pull a vacuum on the solid bungs while ageing, due to evaporation thru the wood. If I were to put an airlock on there, it would be pulling in oxygen bawling.gif
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#9 Jinx

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Posted 30 November 2010 - 07:13 PM

Once again does anyone think that I should be showing pressure in my airlock?

If your carboy is still showing positive pressure I am sure your keg is also positive pressure. It's not sealed! If it was sealed it would be showing either positive or negative pressure depending on if it is still working, or the weather high pressure front or low pressure front will also affect an airlock. Top off your barrel and reseal your airlock.




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