To fill the tank of your clearomizer correctly, take care not to pour the e-liquid into the central chimney. Keep it well to the side between the tank wall and the chimney.
To fill a clearomizer with e-liquid, make sure you don’t pour it into the central chimney. That’s where the air comes up as you inhale. It has to go into the tank to the side.
First, unscrew the tank so you can screw the coil onto the base of the clearomizer. Then reattach the glass tank and refill it. Most newer models nowadays fill from the top, which makes this much easier.
Do not pour the e-liquid into the hole in the middle (the chimney)! Make sure it goes into one of the two openings on either side of the chimney. Replace the top cap, then for wait 5 minutes before you use it for the first time. It needs that time to soak the coil, or you risk getting a dry hit. Also called a dry puff, that happens when the wick inside the coil isn’t fully soaked with liquid. If it tastes burnt or bitter, the coil in your clearomizer is probably not getting enough e-liquid.
If you’re using a variable wattage battery, make sure the wattage matches the range of use for your coil. This is shown in watts on the coil. You may have to unscrew it to be able to see the tiny numbers printed on by the manufacturer.
If the flavour deteriorates or it tastes burnt even when the tank is still full, it’s time to change your coil.