It can be extremely irritating if you have a leaking tank, however most of us have experienced the frustration at least once. Losing your expensive e-juice is bad enough, but it’s even worse when you don’t seem to be able to stop the leakage from occurring. The good news is that there are several ways you can deal with the problem.
Filling Your Tank Incorrectly
By far the most common cause of tank leakage is incorrect filling, which is good news since it’s easy to rectify. Tanks have a central air flow tube called a chimney which runs through the tank’s body to the drip tip. Although all vapers know that they’re supposed to avoid the chimney when filling the tank, many accidentally get their e-juice down the tube and this leads to leaking. If your e-liquid somehow gets into your chimney while filling your tank, you should use a paper towel to clean the chimney before vaping. If you avoid overfilling the tank that will also help since an air pocket at the top of the tank creates a vacuum which stops the e-juice from coming out.
Damaged O Rings
This is another common cause of leakage. If you’ve taken care to fill your tank properly and are still have problems with leakage you should take your tank apart and examine its O rings. If there are broken, worn or missing, the air seal of your tank won’t be working properly and you’ll need new O rings (in the right size, of course.)
Poorly Fastened Tanks
Another simple problem to rectify is a tank which isn’t property fastened together. If the tank isn’t screwed on tightly enough or is accidentally cross-threaded, it’s possible for e-juice to leak out. Check your threads are correctly threaded and that the tank is screwed on properly (although not too tight). Sometimes, it’s impossible to screw the tank on properly as the threads have become worn. If this occurs, you’ll simply need to get a new tank.
Some tanks don’t cope well with being stored horizontally, and e-juice may leak through the airflow holes if left in that position for any length of time. Try standing it up vertically instead, especially when charging overnight.
Occasionally, it is the coil which is at fault because of a manufacturing flaw. You may need to buy a new coil and try replacing the one that you have to see if it solves the problem.
Sometimes, when a tank hasn’t been cleaned for a while, old e-juice will build up a residue inside the tank’s components and this can end up causing leakage. Take your tank apart, wash it with cold water and leave to dry completely before putting it together again. If you like, you can give it a deep clean by separating the tank parts and washing them all with detergent and water.
Sometimes, your tank will have a crack or damage that you haven’t noticed. A bit of bent metal or a narrow crack in the glass will mean that the tank isn’t airtight any more and the e-liquid will leak out.
Incorrect PG/VG Ratio
If you are using a very power hungry coil head, any e-juice which is less than 70% VG content is likely to be too thin and will end up leaking through the large juce port.
Missing Top Cap
As tanks are pressurized, if the tank has no top cap e-liquid will start to leak from the airflow holes. Always ensure that you only ever leave the top cap off for an extended period if the tank is empty.