Hello... I'm looking for some advice here.
Very often I will fill a tank and only vape, say... 1/3 of the juice. Then the tank & juice sit a few days before I get back to them. Since it's been a few days, do I need to shake the juice in the tank, or is it good to go as is? I've been shaking them just to be on the safe side, but now I wonder if that's really necessary. Thanks!