I've been using the Riva with 510 cart's. I'm upgrading to the Provari and I'm really confused on what a "tank" does. Does a tank need to be used with the Provari or can a cartomizer be used alone? Can someone please explain to me how the tank is beneficial with the cart's? I also don't understand the "hole punching" aspect either.
Any help would be great!
Any help would be great!