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This is a makedo airlock; I couldn't make it shorter as the loop bends itself and air couldn't pass through.

https://imgur.com/gallery/TOA6i7f

Wil
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1 Answers1

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It will probably be OK. The smaller the bore of the tube, the greater the tendency will be for any bubbles to push the liquid right out. You could just make a blow-off instead by submerging the venting end of the tube in a vessel full of water.