Hello there!
First of all i am a noob at vaping, only started 7 months ago. Also English is not my primary language, so please excuse lack of knowledge on various parts naming, although i will try to describe them as best i can.
I may have accidentally stumbled upon the solution to the Crown's leaking issue. Now, this may not be everyone's solution, but i've had nasty spilling through the AFC going everywhere since i bought the damn thing a week ago.
I tried anything i could during this week, from buying extra "O" rings to trying doubling them up but nothing fixed the leak. I must have spent about 20-30 ml of juice trying to figure out what was wrong since my retailer just told me over the phone that it's a known problem and they'll get back to me.
the solution i found is quite similar to this video for the Kangertech Subox tank, sorry if links are not allowed, you can just search on youtube for
"Kangertech Subox leaking issue solved!!!!"
This video is for another tank, granted, but what is stated there applies to the leaky coils of the Crown.
Basically what you should see is the black "O" ring that usually goes between part where the coil wire is located and the "cap" the rounded head with a hole in the middle.
If you look closely, there may be a wire coming out a bit, which (I would imagine) should bend along with the "O" ring and create a
seal.
Now, in my case i thought that the wire could be something abnormal so i took the cap off and took a look. That piece of wire is one end of the coil and i figured it wouldn't matter much if it ended up in that spot or not. I looked it up online, see if there should be any reason for that end sticking out of that spot, and all i found was the video link above.
So i used a cutter tool to snip the end of the wire and i used the cap to pull the wire
into the base of the cap so it would not touch any rubber.
It's now been a full day and i have not had any leaks whatsoever. I refilled three times from the top cap with no issues.
If i see any more leakage i will update my post or post another reply.