Hi all I think i have fixed the air locking problem for cleito tanks. I have had the problem for days and realized it was after i cleaned my glass and put it back on. Try checking to see if your glass has a different end (mine had a small dip on one end which went on top with the mouthpiece screwed on). This fixed my problem buy i also got the seals as dry as possible to get rid of some of the super tight seal potentially. This worked for me and i hope it works for you.