[skullworkz]

Hmm.... That's interesting information there. Glad I did'nt pull the fiber and put in foam! I boil and wash my carto's and it works pretty good. I usually let them air dry for two days before I refill. I use a .5ml insulin syringe with the needle broke off for refilling them. The force of the liquid coming out of the end seems to be just enough to fill them nicely and .5ml also seems to be just enough liquid. I have a 3ml baby medicine dropper (plastic with a bulbus end) and a rubber sleeve that I pulled off an ink pen to make the connection between the dropper and the carto to wash them. I put the carto in the sleeve with the end cap off and away from the dropper. Then pull extremely hot water up to the dropper then push back out (I repeat this process until the water runs clear) then leave the cap off and stand on end with the fiber facing a paper towel. It pretty much erases the flavor from the previous fill. But I always vape the same flavors from the same cartos.