i just bought my first vape two days ago. an istick with nautilus tank. within an hour it was leaking and gurgling. the guy told me to come back if i had any problems so i went back yesterday and he took it apart, wiped it out and it seemed alright so i went home. by the time i got home 15 minutes later it was gurgling again. i took it apart 3 times last night, tried filling it, tried changing the coil. still gurgling. went back to the shop today and he gave me a new one. said it was either i was smoking it wrong or it was a faulty product. i came home put it together a half hour ago and just tried it now. once again its gurgling. i feel like an idiot going back again but i dont see what i could be doing wrong. im pulling on it lightly. its at 10w. is this me or is this fixable? or is this just a crap product? sorry that was so long