They were all new bought from the source. I thought that using provari's as my stash tool was the smartest move I could make - I bought 5 spread out over a few months.
At first I was leaving them sitting in the drawer - never even tried them - they were there for the long haul as my ultimate backups. But I kept looking at the pretty things and decided to try one to see the hype after a couple of months - 3 days later - it stopped firing - no known cause - just stopped.
Decided then I needed to test them all. Second one - turned out it was almost DOA. It stopped firing on the second
tank I put on it.
Now the third I used for several months and then it went into constant firing mode just by putting a
tank on it - it would start firing.
I am currently alternating between the 4th and 5th one to test them before the repair facilities disappear for them.
All have been repaired and so far seem to be working, but I have added a few other
devices as I am not comfortable with them being my perfect long term tool to cover me in the long years after the destruction of this industry.