Hi Lettie

The design of the tanks is quite clever IMHO...you can see that when you fill a tank, the only place the juice can escape is through the hole in the tank cap, which is pierced by the atty spike and the juice is then fed onto the coil by the wick cunningly contained in the spike.
the grooves in each side of the tank are channels through which your vapour is pulled from the atty cone, up through the mouthpiece. Some condensation forms here and that's the spots of moisture you can see... the little baffle below the tip prevents condensation from being pulled into your mouth along with the vapour, but this will collect moisture over a period of time, depending on how hard your draw of course.
You can remove the mouthpiece tip and the tiny baffle below and use a cotton bud to dry out this chamber whenever necessary.
Yup, normal
