I'm looking at my standard, 3 piece airlock, and it seems that if I remove the cap and the little floaty-thing, I can attach a piece of tubing to the inner cylinder to create a blow-off.
Anyone happen to know what size (I.D.) tubing fits the standard airlocks? I know I could just measure it and use that as my I.D., but sometimes the tubing varies, etc. Just wanna see what works from experience.