Folks on here have reported a wide range of times between coil/wick changes, from a day to a month or more.
Vaping style and the way you set it up/choice of materials(as wonderfully explained by Bishopheals above
) is the first thing to consider for sure.
But type of juice has been a difference maker for me also. I've been triple wickin' it since the iatty 1 came out last year
and I've got the feed control dialed in on all of the RBAs I use, never a dry or metallic hit, great moist vapes all.. The dark juices I favor just gunk up my coil way quicker,
3 days easy for me with some compared to switching to a lighter juice with the exact same setup and getting several weeks out of it just fine.
(with occasional dryburns) Luckily I quite enjoy coil making!
In my case it may be that the dark juices are house-extracted coffee vapes
which, along with some extracted tobaccos, have some particulates remaining in the mix
that could perhaps burn onto the wick over time. So many other flavoring variables too lol..
The dryburn will take it off though, and it works best for me. The somewhat delicate wick will break down over time with repeated rinsings and dryburnings
and then not all the accumulation can be removed/won't wick well. The wick doesn't burn, I butane torch mine to prime/clean, but liquid burns onto/into it.
If you don't want to replace the wick so often, though, or supplies are limited-
mine do hold up well and keep wicking through 5 or more dryburns. I do so every couple of days.
After you do the burn, there can be lot of ash and bad flava on the wick and wire still that may linger and not be able to be brushed off.
especially if really gunked up or really old.
I think this could be the source of the taste you describe, kind of like how it smells when dryburning?
Give it one more good rinse and maybe brush off the coils gently, then dryburn once more.
The second round shouldn't take as long, and hopefully the taste will improve for you
Sorry for the wall o' text
