What I meant was when a coil "dies" (taste is off, eventually taste burnt), I could just change the cotton inside, and use it all over again, so I dont have to buy new 5-packs anymore? Or is that not how it works? I've always assumed its simply the cotton that "goes bad", and you could just change that.
Wouldn't that be great? But here's the thing(s):
A. There's gunk on that old coil
B. There's gunk saturating that old wick
C. It's one tarry blob of gunk
Pop off that little cap and pull out the wires from the bottom your next "dead" coil, like Rip did earlier in his rebuild video, and you'll see what I mean. Do this over some newspaper or an easily cleaned plastic placemat, or some such. Now you know what I mean. This poses some problems for the simple cotton replacement plan:
A. That fused gunk will make it hard to remove the wick without deforming the wire coil; if you manage it...
B. That gunk will still be on the coil when you change the wick, still tasting off or burnt
C. Normally, you'd want to "dry burn" that wickless coil, turning the gunk to ash and blowing it off, but you can't get the wire hot enough without burning the rubber resistor/grommet at the bottom (under the little cap)
So, replacing ONLY the cotton is something you might try when you want rid of the strong flavor haunting your PRETTY NEW coil head. If you really want to use the coils up, then use them all over again, and stop buying them for good, you'll want to watch that whole Rip video, get the wire and the cotton and the tools, and replace the wick-and-wire entire. Once you've done it a few times you'll be a pro.