Hey guys, I have just started my first batch of mead and have a question pertaining to a 3 piece airlock. Do I merely set the lid/top over it or push it down to a snug fit? I've seen gifs that show the top being pushed up when it burps itself and about 4 hours after I pitched the yeast I see it has built up pressure and the inside part is pushing up against the lid, but I have it snugly on there. Will it push off on its own or do I need to take it off then set it back on? Also, I made another batch at the same time and put it in a different container but there seems to be little/no airlock activity. I used a different strain of yeast for it, and used plenty of yeast nutrient, how long does it typically take for the yeast to start going? Thanks for your help.