[Jim Davis]

To avoid running juice inside the cartridge, and getting a mouthfull, try the following.

Use a paperclip, jewelers screwdriver, tiny Allen wrench or other small, stiff wire object.

Insert your pin in the mouth end of the cartridge and gently push until the inner sleeve containing the fiber rises to the top. This will allow you to drop the liquid into the fiber without spilling it inside the cartridge. When finished, push the sleeve back down into place and push the cartridge on the atomizer.