Hearing a bubbling sound from your vape can be concerning, especially if you’re unsure about what’s causing it. In most cases, bubbling is a sign that e-liquid isn’t vaporising correctly, which can affect performance and flavour. This article explains the common causes of bubbling in vapes, how to fix it, and tips to prevent the issue.

1. Common Causes of a Bubbling Vape

1.1. Excess E-Liquid in the Coil or Airflow
Bubbling often occurs when too much e-liquid saturates the coil or leaks into the airflow chamber. This can happen if:

• You overfill the tank.

• E-liquid leaks when refilling.

• The coil is not properly seated.

1.2. Using the Wrong Wattage
Operating your device at a wattage setting that is too low for the coil can result in incomplete vaporisation of the e-liquid. This can create excess liquid around the coil, leading to bubbling.

1.3. Draw Technique
Taking long or overly forceful draws can pull too much e-liquid into the coil, causing gurgling or bubbling sounds.

1.4. E-Liquid Consistency
High-VG (vegetable glycerin) e-liquids are thicker and may not wick properly in devices designed for higher-PG (propylene glycol) liquids. This can lead to bubbling if the liquid pools in the coil.

1.5. Faulty or Old Coils
Worn-out coils may not vaporise e-liquid efficiently, leading to unburnt liquid accumulating and causing bubbling noises.

2. How to Fix a Bubbling Vape

2.1. Clean the Tank and Airflow
Disassemble your vape and clean the tank, coil, and airflow chamber with warm water or a damp cloth. Remove any e-liquid build-up to ensure proper airflow.

2.2. Adjust Your Wattage
Check the recommended wattage range for your coil and set your device accordingly. Operating within the proper wattage range ensures efficient vaporisation and prevents excess e-liquid.

2.3. Use the Right E-Liquid
If your device is designed for MTL (mouth-to-lung) vaping, use high-PG e-liquids. For sub-ohm devices, choose high-VG e-liquids to optimise wicking and vapour production.

2.4. Replace the Coil
If the coil is old, burnt, or faulty, replace it with a new one. Make sure to prime the coil by adding a few drops of e-liquid directly onto the wick before use.

2.5. Modify Your Draw Technique
Take slower, steadier draws to avoid pulling excessive e-liquid into the coil. This can also enhance your overall vaping experience.

3. Preventing Bubbling in the Future

To keep your vape running smoothly and prevent bubbling:

• Refill Carefully: Avoid overfilling the tank and ensure the coil is seated properly.

• Maintain Your Device: Regularly clean your tank and replace worn-out components.

• Store Upright: Storing your vape upright prevents e-liquid from leaking into the airflow chamber.

• Check Seals and O-Rings: Inspect seals and O-rings for damage or wear, as faulty components can cause leaks and bubbling.

4. When to Seek Expert Help

If bubbling persists despite following these steps, there may be an issue with your device’s design or internal components. Visit a reputable vape shop or contact the manufacturer for troubleshooting support.

Conclusion

Bubbling sounds in a vape are often caused by excess e-liquid, improper wattage, or faulty components. By identifying and addressing these issues, you can restore your device’s performance and enjoy a smoother vaping experience. Regular maintenance and proper use of your vape are key to preventing bubbling in the future.