Thank you have tried a different coil and bass but still leaking , I've also tried washing in warm water but to no avail but has stopped other's from leakingMake sure that all of the o-rings on your atty (tank) are in place and sealed correctly.
Also make sure the coil is properly threaded and tightened down. Some coils also have an o-ring at the bottom to seal them into the base of the tank. Make sure that is in place as well.
If you are using the kit, it came with the SMOK Micro TFV4 Sub-Ohm Tank, here are pictures of the atty that came with the kit.
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