I ordered a 3.5ml DC tank and did the initial fill with no problem. It was vaping great for over a week and I was happy. I ordered a couple of pre-punched replacement cartos and decided it was time to replace the first one. I filled it just as I did with the first one, gave a nice consistent pull and got nothing but that horrible burnt flavor. I dripped a couple of extra drops into the top of the carto from the drip tip and let it sit overnight, figuring maybe it wasn't saturated enough but after a few more tries over the last couple of days, nothing has changed.
Is there any hope for this carto? Could it just be a dud?
Is there any hope for this carto? Could it just be a dud?