I haven't really kept track, but I'd say a high estimate would be between 3-5ml/day... I just started using RDAs, and I have noticed I am using a little more, but I'd say not more than a few mls....on a really solid day of vaping hard, maybe close 6 or 8 mls? But I really have no idea, this is just guessing... It doesn't seem like I go through a lot...But I keep getting more, and use multiple tanks/RDAs throughout the day, so it might be an illusion lol..
Im gonna try to start keeping track... Yesterday, I didn't drip much, and I went through ~4mls?