What is it? I don't think I want to try rebuilding right now. But I'm looking for the highest quality tank out there. One with replaceable atomizers. I want quality!! No burnt hits atleast not for a long time and limited gurgling and of course after taking all the obvious precautions to prevent burnt hits and gurgling in the first place. Right now I have an aerotank v2 with their new version replacement atomizers. I had the nautilus I really liked it but I think it was defective after trying several replacement attys in it and making sure everything was nice and tight it still leaked like crazy.
I believe you're looking for the Holy grail of tanks. it has come to my conclusion that ALL tanks either leak or gurgle to some extent. There are just too many variables that make tanks impossible to gurgle or go dry. Temperature, heat, viscosity of the liquid, the speed that the wick dries the juice, and the Variation of the voltage given to the coil, causing a change in the juice demanded to the coils. Unless there is some very advanced sensor to regulate how saturated the wick is, we have to rely on our own sensors... our taste buds.
With the latest advances in atomizer tanks, the current builds work on a vacuum system. It requires a specific vacuum ammount to withhold some juice. Unfortunately, there are too many variables out there to call that a foolproof system. You may find a setup that works well at the desk, but if you take it outside in the heat, you might get some gurgling as the heat will upset the vacuum pressure. What I like to do with these builds, is to make a semi thick wick, and allow it to naturally want to dry hit eventually. When I need more juice, I will put my finger over the air inlet and do a quick and brief inhale. That will draw some juice into the wick, and it will work again. This system seems to work the most reliable for me.
The second option is to leave out the tanks entirely. This is why dripping is so popular, since the wick is replenished manually. I don't like this since I have to constantly drip into the atomizer, but I've never heard of a leaking dripper unless there is a defective seal, or user area.
a hybrid between dripping and a tank system is called sqonking. It's where the tank is underneath a dripping atomizer, and to replenish the wick, you manually squeeze the bottle on the PV, and it replenishes the atomizer. to my knowledge, only the Reo has that option.
One atomizer has it where you push the wicks into the tank when it needs refilled. This is the 3D atomizer. I don't know of too many people who use it, but I know it exists.
Another is to go old school and do either catomizers or a genesis style tanks. Cartomizers use a polyfill to suspend the liquid, but those are still prone to leaking if they get hot and they are expensive and disposable. Wrapping a tank around it helps prolongs the cartomizer and makes it a bit more cost friendly. As far as the Genesis goes, those work well, but you tip the whole atomizer to re-wet the wick when it gets low. I've had my AGA-T2 for over a year, and it still works well. The only time it leaks is when it's layed on it's side.
The best thing I'd recommend is to get into rebuilding your own coils to suit your vaping needs. When you start rebuilding, you can customize the heat of the coils and the size and density of the wick. I have a cheap mini protank clone that, by default, would dry hit all the time. The first thing I do is take the coil apart and re-do it. I switch it to organic cotton and regulate the flow by having a denser or thinner wick. to match the ohms of the coil. If I were to stick a stock protank coil on a standard EGO type battery, it works great. But I use my mini protank on a variable voltage Ego and run it at a bit higher voltage than normal.
IF you have a leaking issue, I would check several things. 1, do you use it in a hot environment or change from a hot place to a cold place.. that will wreak havoc on the vacuum system and there's not too much you can do. Never leave your ecig in a hot car, it WILL leak. How hard are you inhaling? it creates the juice supply when you inhale, so if you have strong quick inhales, it will supply juice faster than it can vaporize it. How tight of a draw is it? if it's too tight of a draw, it creates too much of a vacuum to it. try increasing the air hole slightly to see if that helps. How thin is your juice? try a thicker or higher VG ratio juice. And lastly, have you tried upping the voltage/wattage to burn off the juice quicker.