Fill the Bubbler Airlock with water and insert in drilled stopper or bung to vent gases during fermentation.
"Bubbler" style airlock makes a gratifying "bloop" noise during active fermentation. It is the preferred airlock for secondary fermentation, as it is possible to monitor the pressure inside the fermenter.
To use: Insert assembled airlock into the hole of the rubber stopper that fits your current jug or carboy. The airlock cap should always stay on top when in use; it has several small holes in it that allow gas to escape but prevent the water inside from quickly spilling out if tipped or jostled.
Took away a star because my cap didn’t have any holes to vent out of. I used a thumb tack to put a few in and it works fine after that.
I use the bubbler airlock for secondary fermentation. It's easier than a 3 piece airlock to set up, albeit not as easy to clean.
The airlocks are great, we are making meed so I needed additional equipment. What I really wanted to comment on was the Lemondrop Saison. 6 weeks was worth the wait. The beer is smooth with just a hint of lemon. I had hoped it was going to be a great summer beer, and this has met my expectations and more. Thanks for the great beer.