Bad news on the sapphire front. My first two are headed for the garbage. One has a distinctly burnt taste, and it never got low on e-liquid. The second is leaking like crazy. I picked it up earlier to see if my husband was low on juice and it was a little messy but I wasn't sure if it was greasy fingers (chicken cutlets for dinner, no utensils required and perhaps no napkins either?) or from juice, so I didn't worry that much. I just went to refill it, and when I put the juice in, the breathing side filled up as well as the juice side. When I took the cone off, it was a drippy mess.

I suspect there is a crack between the two chambers. Maybe I'll try to take them both apart tomorrow and see what I can see.