How often do you need to clean a clearomizer?? Is it only when you change flavors?? Thanks in advance for any help 
I think you should be able to get at least 3 dry burn cleanings out of them.

THIS is what happens when I try to clean a V2 Vision:
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I really interested in getting a clearomizer, but I've noticed a few posts on them melting. What makes them melt? The phoenix from gotvapor seems to be pretty durable.
Certain juices that are high in acid makes the polycarbonate ones melt. The Phoenix does not. I have seceral Phoenix clearomizers that have had cinnamon and other juices in them for over a week with no cracking.
The vivi nova 2.5, a 3,5ml won't melt either