I just started 5 gallons of mead (one of my first brews) and it was bubbling away until I attempted to remove the gamma seal lid to check for fermentation bubbles in the liquid. at that point the airlock bubbles stopped which I took to mean there was no longer pressure in the bucket. The fermentation was definitely active (tons of bubbles in the liquid) so I tried getting it to work again in the same configuration, swapping just the screw on lid for a different one, and even swapping the o ring sealing rim the lid screws into. Nothing has worked. The only thing I can think could be the problem is I didn't snap the outer rim part of the gamma lid on well enough. I heard positive snaps when I applied the ring but I'm not sure if it's airtight. I would really appreciate any troubleshooting ideas because I would hate to make vinegar.