How to Fix a Flooded or Bubbling Vape Tank
Part of Leaks, gurgling and flooding
Flooding and bubbling are common and usually easy to fix. Flooding means too much e-liquid has collected inside the coil housing, so vapour comes out weak, thin, or wet. Bubbling is the sound of that pooled liquid being heated and pushed around by air, and it often happens right before or during flooding.
Why it happens
Your tank holds e-liquid (the liquid that turns into vapour) and a coil (the small heating element that vaporizes it). E-liquid moves into the coil through small intake openings. When too much liquid enters faster than the coil can vaporize it, the coil floods. Several things cause this.
Low or interrupted power. If the coil does not get hot enough, liquid sits in it instead of vaporizing. This happens when the device is set below the wattage range printed on the coil (wattage is the power setting that controls how hot the coil runs).
Over-priming. Priming means soaking a new coil with liquid before you install it. Doing this correctly prevents dry hits, an inhale where the coil is too dry and feels harsh, but adding too much liquid before first use can start the coil off already flooded.
Drawing too hard. A hard, fast inhale pulls more liquid into the coil than the heating element can use. This is the most common cause of gurgling on a device you have used without problems.
Airflow left closed. Airflow is the small adjustable opening that controls how much air passes over the coil. With it nearly closed, a normal draw creates strong suction, which pulls extra liquid in.
Temperature and storage. E-liquid thins out when warm. A tank left in a warm vehicle or held in a warm hand for a long time can feed liquid into the coil too easily. Lying the device on its side can also let liquid sit against the intake openings.
Worn coil or broken seal. Coils wear out over time and stop vaporizing efficiently. A torn or pinched seal, the small rubber ring inside the tank, can let liquid leak into places it should not be.
Step-by-step fix
Work over a paper towel or cloth so spills are easy to clean up.
- Check the wattage. Look at the coil. It has a recommended wattage range printed on its side. Set your device to a number inside that range. Running below the range leaves liquid unvaporized.
- Clear the pooled liquid. Turn the device upside down over the towel and let excess liquid drain from the drip tip, the mouthpiece you inhale from. Tap the device lightly to help liquid run out.
- Drain without firing. With the tank pointed down and away from your face, let the liquid run out onto the towel, then wipe the airflow opening clean. Do not fire the device while the mouthpiece is blocked; that can spit hot liquid onto your hand or face.
- Adjust your draw. Take slower, longer inhales instead of short, hard pulls. A gentle draw gives the coil time to vaporize what is already there.
- Open the airflow. Set the airflow ring to a wider opening. More air lowers the suction on the liquid intakes.
- Check the coil and seal. If flooding returns right away, remove the tank, take out the coil, and inspect the rubber seal around the base. If the seal looks torn or pinched, or if the coil is several days old and dark inside, replace the part.
- Rest the tank upright. Leave the device standing upright for a few minutes so liquid settles back where it belongs before you use it again.
If the bubbling clears after a few draws but comes back during long sessions, the coil may simply be near the end of its life and feeding unevenly.
Prevention
Prime fully. When installing a new coil, apply liquid to every exposed cotton port until the cotton is saturated, then fill the tank and wait five to ten minutes before the first draw.
Stay in range. Keep the device set within the wattage range printed on the coil. Do not run below the range to try to stop flooding; under-powering leaves liquid unvaporized.
Draw gently and keep airflow open. A steady, moderate inhale with a reasonably open airflow setting keeps liquid intake balanced.
Store smart. Keep the device upright, out of direct heat, and out of warm places like a parked car in summer. Remove the tank or empty it if you are leaving the device unused for more than a few days.
Change coils on schedule. Replace the coil at the first sign of reduced vapour, weak output, or a lingering bubbling that does not clear. A fresh coil vaporizes liquid cleanly and prevents most flooding.
This guide is general technical information and is not medical or legal advice.