I thank everyone for their opinions but I think it was the juice I tried the thicker juice, mostly vg, and it didn't collect in the small section of the mouthpiece,it's that little section right where the mouth hole is that collects the juice. I haven't had any problems with the atty leaking except when I was carring in my case in my purse, so when I tried a juice with mostly vg it didn't do it or maybe I just had a bad cart I don't know but I sure appreciate all of you guys help!