I have had the same problems though I didn't order mine from health Cabin, I got mine from Vapor Beast. Boge cartos that turn the juice black and clog within 1.5 days of use with 100% PG juice, sometimes within 2 hours. I saved all mine that went bad in a baggie though, just in case. Keep in mind this is with different flavors, different kinds of PG, some I tried adding VG, all with the same result.

