I just edited where I wrote that because I realized how I put in sounded like I was doing that. Sorryno I hold it down the whole time I'm vaping and it makes a noise while I'm doing it. Not gurgling more of a deep hissing noise hard to describe.
Yes, you're right. That's what I thought. Glad you are doing it the right way.
The only thing I can think of is that your tanks are not working properly. You really should be noticing the juice level going down more than that if you are vaping throughout the day. I smoked 2 packs a day, and use 24 mg. liquid, so 18 mg. should be okay for you.
I hope your new tanks that you ordered perform better for you. I use the Evod clearomizers that came with my starter kit, and I haven't smoked since I started vaping. They are inexpensive and work well, I think. Here is a link if you want to check them out:
Kanger MT3s @ VapingME.com - colors galore!