Originally Posted by Burnmyiz
Had anyone tried a 1 or 2 liter bottle with both ends cut off, over the air lock sitting on top of the carboy? I'm not sure how heavy the material is but it could be an option
Thanks for the feedback everyone! This is a good idea for those who dont want the top resting on the airlock.
We did our testing with the cooler top resting on the airlock with multiple brews both in a carboy and fermentation bucket with no issues. The lid is not heavy or tight enough to block the airlock from working correctly.