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Old 08-30-2012, 09:20 AM   #1
Mongzilla
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Apr 2012
Huddersfield, U.K
Posts: 46



I am building a new fermenter from 25K foodgrade Jerry can, and I am just about drill the screw cap to fit the airlock and blow off tube.

I have a rubber washer that will fit a standard airlock stork, however the hole looks a little small for a blowoff tube and I would like some help setting one up.

I have seen some posts on the site that say you can dismantle PLASTIC JUNIOR OR HANDY CYLINDRICAL AIRLOCK, and attach a length of tubing to the central stalk of the airlock unit. Is this a good idea or would it be better to try and find another screw that will fit my fermenter and have a larger bore.

If I cannot find a new screw cap with the modified junior airlock work in a pitch?

I'm going to use this fermenter with some heavy gravity beer (O.G. 1.085).

Thanks for the help, and if you need any more information please pop up a post.
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Old 08-30-2012, 01:50 PM   #2
mugzz819
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Apr 2011
Philadelphia, PA
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I've attached a blow off to the central stalk of a 3 piece airlock with no problems. The one thing that was recommended for this procedure is to cut off the plastic grids at the bottom of the stalk...it's basically just a little plastic 'x' in the part that goes into the grommet. This just keeps things from clogging.

 
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Old 08-30-2012, 01:54 PM   #3
DannyD
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Jul 2011
Polokwane, Limpopo
Posts: 420
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I have also had great results with these electrical glands, You can use a washer to make the gland and the cap air tight and the just push the blow of tube that fits inside the gland in (and also tighten if needed)

 
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Old 08-30-2012, 02:29 PM   #4
Curtis2010
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Dec 2011
, Guatemala
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Quote:
Originally Posted by mugzz819 View Post
I've attached a blow off to the central stalk of a 3 piece airlock with no problems. The one thing that was recommended for this procedure is to cut off the plastic grids at the bottom of the stalk...it's basically just a little plastic 'x' in the part that goes into the grommet. This just keeps things from clogging.
+1. I've done exactly the same thing. Works great and uses standard parts already on hand.

 
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