Sticky pls! I haven't been caught with this yet because so far I've just kept my daily in the tank and used everything else in smaller quantities in other devices. If your tank cracks, well, that sucks, but the replacement tank "glass" is pretty cheap. However, I do have concerns about the aforementioned post of the chemical reaction disolving polycarbonate into my liquid. It would probably just start out looking normal, like when the viscosity of the juice makes it stick to the insides a little bit. If you're using it while this is taking place, that can't be good.
If we can find the harmful effects of ingesting vaporized polycarbonate, it may or may not prove to be rather harmless. However, we don't really know what the resulting compound of the chemical reaction would be. I don't want to scream "FIRE!" here, since we don't know. However,
Vendors appear to be leaving us on our own on these (can't say I blame them, but they should be helping with or flat out doing this research IMO). I definitely think we should find out what the resulting compound could be. If it turns out to be essentially harmless, we could at least ask the vendor to include the results of this thread in the disclaimer rather than just, in effect, "we dunno".
This is the language from the Vaporescence site, "PLEASE NOTE - While the manufacturers of polycarbonate tubing advertise it as being unbreakable we have had three tanks "frost" and shatter due to other peoples eliquids. We have had no problems. While no one is really sure what causes this problem it is very rare and only with certain liquids. It could be due to essential oils, high ph, or many other things, but again no one really knows. We have decided not to cover this problem with any sort of warranty as this is not our fault or anything we can prevent. We are sorry for any inconvenience but we will make replacement tanks available for purchase."