Background: I've owned iclear 30, iclear 30S, protank 3 and various other cheapie tanks. The first time i purchased the Nautilus Aspire tank. I was blown away by the quality taste and vapor production. Then, my 1st coil burnt out. So, I put in the additional coil that came with it. Priming it, letting it set overnight and trying the upside down trick. Nothing seems to work. I get a burnt taste all the time after the 2nd hit. Good luck trying to chain vape. Not gonna happen.
Cause: Not enough juice was getting to the wick. I can't confirm, because, I threw away the 1st coil. By the way was awsome. There are 4 tiny holes at the bottom of the replaceable coils. I believe, if the plastic inside of the coil was not aligned properly at the factory, the holes are blocked. Thus preventing juice to get to the coil.
Solution: Take a needle and jam it thru one of the tiny holes.
Conclusion: OMG, can chain vape and the taste now is better than the original coil that it came with. Totally into my Aspire Nautilus now, no longer ...... off.

Cause: Not enough juice was getting to the wick. I can't confirm, because, I threw away the 1st coil. By the way was awsome. There are 4 tiny holes at the bottom of the replaceable coils. I believe, if the plastic inside of the coil was not aligned properly at the factory, the holes are blocked. Thus preventing juice to get to the coil.
Solution: Take a needle and jam it thru one of the tiny holes.
Conclusion: OMG, can chain vape and the taste now is better than the original coil that it came with. Totally into my Aspire Nautilus now, no longer ...... off.