Description To Fill: The filling mechanism is accessible directly through the mouthpiece via a spring loaded no-return coil valve. Simply insert your juice bottle tip into the filling hole and apply slight pressure to open the filling valve and gently squeeze the juice into the tank. Please do not apply too much pressure on your juice bottle as this will cause the juice to cascade the filling hole. You will see the tank slowly fill with juice. As the ARC is designed to soak from within the tank, please tilt the tank as to ensure ARC saturation. To Change the coil Unscrew the top cap, put to one side. Unscrew the coil mounting screw. Remove the used coil. Replace with fresh coil – ensuring that the new ARC is sitting flush with the tank. Screw the coil mounting screw back into place. Replace the Top cap. Contents: 1x 2ml Revvo tank 2x Coils (0.10-0,16 ohm) 1x Glass 10x O-rings 1x Warning card 1x User manual 1x Warranty card 1x Protective silicone cap