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tattooedtinter

just asking a question

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Very old Mr. Beer fermenters had airlocks.  Newer ones have a solid lid, and VENTS CUT INTO THE THREADS where the cap screws on.  No airlock is needed.

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The LBK shouldn't need an airlock.  There are castellations (grooves) in the top of the fermenter that are intended to accomodate the pressure.  Just throw your ingredients in and close 'er up.

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Note, make sure to leave a little jiggle room with the gap.  If the vent notches get plugged it will be an ugly mess.

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Damn Elcid, made me look that one up.  I guess one could say they are 'defensive' grooves as they defend against the LBK blowing its top!

cas·tel·la·tions  

/?kast??l?SH?nz/ 

noun: castellation 

 

defensive or decorative parapets with regularly spaced notches; battlements. 

 

the use or building of defensive or decorative parapets. 

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Ha, my dictionary doesn't even have that word. At any rate, I screw the lid on tight, then back off about 1/8 turn.

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Thats the dorky engineer in me.  We use Castellated Nuts (A nut you can use with a Cotter Pin) in the aerospace biz.   Google Images will set me free!!

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