Hello.
I've had abosultely no leaks or problems with my Nautilus after using it for over 5 months.
I've seen other people have problems, though, and we've narrowed it down to a few things.
One, there is a huge difference between BDC and BCV coils. The BDC tend to have more taste and a gentler sweeter vapor. Also, all air holes can be used with no difficulty. The BVC produce a heavier vapor more like cigarettes, and can only be used with the largest hole. Otherwise you'll have clogging, leaking, giurgling.
The other common reason for leaking is over-tightening. Screw the Nautilus together so it just seals, don't tighten it past that point.
Another problem can be mis-threading of the coil, especially with the new BVC coils. The don't seat as far in and barely screw past a full turn, unlike the BDC. So many people over tighten/ruin threads trying to install their BVC coils.
There are occasional manufacturer mistakes. I don't see why people don't try to return their Nautilus to the seller, to try a diff unit.
Gurgling is cured by selecting the largest hole and gently blowing out the liquid/saliva that has fallen into the tube.
So with that, I hope you enjoy your Nautilus as much as I do. I tried many other atty's with no luck until I found Nautilus. Haven't had to replace anything but coils ever since.
Hope this helps !
