Why Is My Vape Leaking? Common Causes and How to Stop It
Why Is My Vape Leaking?
Few things are more frustrating than reaching into your pocket and finding e-liquid all over your device. Leaking is one of the most common vaping issues — and almost always preventable once you understand what causes it. Here's the full rundown.
Cause 1 — Overfilling the Pod or Tank
The most common culprit. Filling right to the very top leaves no air gap, and many tanks rely on a small pocket of air to maintain the pressure balance that holds liquid in place. Overfill it and liquid is forced out through the airflow.
Fix: Leave a small air gap when filling — don't fill to the absolute brim. Avoid getting e-liquid down the central airflow tube, which leads straight out the bottom.
Cause 2 — A Worn or Old Coil
As coils age, the cotton degrades and can no longer hold and wick liquid effectively. Liquid then pools and escapes. A leak that appears suddenly after a couple of weeks of use is often just a tired coil.
Fix: Replace the coil or pod. If a fresh coil stops the leak, that was your answer.
Cause 3 — Loose or Cross-Threaded Components
If the tank sections aren't screwed together properly — or are cross-threaded — the seals won't engage and liquid escapes from the joins.
Fix: Disassemble and reassemble carefully, making sure each thread catches properly. Don't overtighten, which can damage the O-ring seals and make leaking worse.
Cause 4 — Damaged or Missing O-Rings / Seals
The small rubber rings inside your tank create the seals that keep liquid contained. If one is torn, perished, or has slipped out of place, leaks are inevitable.
Fix: Inspect the seals. Many tanks come with spare O-rings. If a seal is damaged, replace it. If your pod is sealed and the seal has failed, replace the pod.
Cause 5 — Vaping Technique
Short, sharp, hard pulls can pull liquid past the coil and into the airflow. Inhaling too forcefully on an MTL device is a frequent cause of leaks and gurgling.
Fix: Use slower, gentler, longer draws — especially on pod systems and MTL devices. Let the device do the work.
Cause 6 — Temperature and Pressure Changes
E-liquid expands and thins when warm and contracts when cold. Leaving a device in a hot car or going through air-pressure changes (like flying) can force liquid out. Thinner, warm liquid also wicks faster and can flood the coil.
Fix: Store your device upright at room temperature. On flights, empty the tank or keep it as full as possible to minimise the air gap, and carry it in a sealed bag.
Cause 7 — Storing the Device on Its Side
Leaving a vape lying horizontally allows liquid to seep around the coil and pool in the airflow channel over time.
Fix: Always store your device standing upright.
Quick Leak-Prevention Checklist
- Leave a small air gap when filling
- Keep e-liquid out of the central airflow tube
- Replace worn coils and pods promptly
- Reassemble components carefully — don't overtighten
- Use slow, gentle draws
- Store the device upright at room temperature
- Empty or fill the tank before flying
Still Leaking?
If you've worked through everything and your device still leaks, it may be faulty or the wrong pod may be fitted. Pop into your nearest Krem Vape Studio branch and we'll happily take a look. Browse pods, coils, and devices online at kremvape.co.za with nationwide delivery — and since stock varies by store, it's worth calling ahead if you need a specific replacement pod in person.
