Well Im at a loss. I have tried 3 new heads today(last of my stock) and they are all not wicking. tastes like ...., just dry hitting and not wicking, I will have to wait and get new carts and see if it continues. It was a good week though while it lasted.
the tank or cart should not be keeping the liquid from absorbing into the wick...if anything a bad cartridge would cause flooding. I dont know how you are starting off with each new atty head..so I can only tell you what works for me, When new..I rinse in hot water and blow out any moisture, then a drop or two directly on the post so there is liquid on the wick before I even fire up the battery.
some suggest letting the tank sit for at least 5 minutes before use so the liquid can absorb (and drip) to the coil and helps keep the wick from burning..I have never been that patient..lol...but it will take a bit before you are getting full vapor (if the wick is still damp).
I have never had the tanks themselves go bad, although I did read that the holes can enlarge with use and cause flooding.
There is a remote possibility that too much liquid in the atty is causing the burnt flavor..try blowing it out, rising and re priming it with liquid. and push the wick down a bit..should be just below even with the flat side
if any form of desperation leads you to taking an atty apart..the burnt wick can usually be cleaned off. I have soake in hot water..then used a wooden toothpick to kind of scrape..(more like a stabbing motion..the ash sticks to the wood. and much ends up on my paper towel.the ends can be clipped if they are charred. I have had a few heads that have wicks that are just a bit too long..trimming the slightest bit made all the difference. I do recomment watching a few you tube videos on dry burning an ego-t..same principle, just a smaller scale. I do not burn the crud off of my wicks..makes everything awful for me. I have noticed that a bit of PG (VG probabably) and a gentle rub with a paper towel cleans wicks also..try drawing with the burnt end on the paper..(yes, I am serious) but very gently. I only need to replace my wicks if they fall apart..so ...A few times, the burnt taste was cause by a small filiment of wick that dislodged from the mesh and fell directly on the coil..pulled it off with a tweezers.
Sorry this is so long.. I MacGyver my atties several times a month. Hope you can save yours. I know how frustrating this can be... also might try 30% vg...thinner liquids seem to work better long term
