Refilling the Childproof K Lite Tank is simple and mess-free. Unscrew the top cap and remove it from the tank. Add your preferred e-liquid by pushing the tip of your filling bottle through the filling slot. Once filled, put the top cap back on top of the tank then screw it to secure it.
Coil installation is as easy as well. Invert the tank, unscrew to disengage the base hardware; Unscrew to remove the used coil and replace it with a new one; (For Child Resistant Version, push and unscrew to remove the used coil and also push and screw to install a new one); Screw into relocating the base hardware; (For Child Resistant Version, push down and screw in to relocate the base hardware).
Note: when installing a new coil, let the tanks stand for 5 minutes after filling to allow the cotton to be fully saturated with e-liquid to prevent damage to the coil and /or burning the wicking material.