Their IS a learning curve involved with cartotanks. Most people that use them have experienced some ups and downs with them. However, this isn't rocket science. If one follows certain methodologies, as was demonstrated in the above video demo, it doesn't take long for cartotanks to become second nature. They are my favorite juice delivery system providing excellent flavor, the ability to carry larger quantities of juice, and are quite durable for transport when out-and-about. I have several tanks with me most of the time, each with their own flavor, and I can switch between flavors easily by switching between tanks.
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The tank can be removed by unscrewing the assembled tank from the PV. Cartomizers have a threaded pin on their bottom end which screws into the PV connector. In the below image, you can see this threaded pin on the bottom of the cartotank.
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The tank snuggly holds on to the cartomizer inside it via rubber washers (o-rings). This attachment is not TOO snug, though, because to refill the tank or to eventually replace the carto one must be able to slide the tank off of the carto. This was demonstrated in the video. When picking up a PV with a cartotank, it's good practice to not pick it up by the tank, but by the PV.
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Cartotanks will not leak, generally speaking. But like any juice carrying device, things do go wrong, and it is usually from user error. If the o-rings that make the connection between the two end caps and the carto are defective, juice may leak from the tank or cause flooding issues with the cartomizer.
There is a fine line of proper juice flow from the tank to the inside of the cartomizer where it is heated by the coils and turned into vapor. Too little juice into the carto, and one gets "dry hits" or a burnt taste. Too much juice into the carto and one gets gurgling, a clogged-up air flow on inhale, or leaking from the bottom of the carto (known as "flooding"). The number of holes needed in the carto is determined by the juice's particular thickness, how tightly wound the polyfill in the carto is, and the vaping technique of the vapor. Experience is the best teacher here, and somewhat subjective.
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For someone trying their first cartotank, I recommend that they use "pre-punched" or laser-drilled cartos. These cartos already have holes in them, and using these will eliminate the human error factor that can be involved with punching them yourself with a carto punch tool. I still prefer using them over punching my own cartos, as they provide me with consistancy carto to carto. Get the carto-tank part down first. Once that is going smoothly, one can learn to punch or slot their own cartos.
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The two images above show a laser-drilled hole in a carto and a tool-punched carto, both known as "pre-punched" cartos.
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Since the o-rings in the endcaps are so important to a cartotank setup, I highly recommend that people purchase a tank accessory tool such as the Slap Yo Momma tool from Big Daddy Vapor. The end of a carto has a sharp edge that can slice or damage the rubber o-rings as it passes thru the end caps. Placing the S-Y-M tool into the carto top covers the sharp edges and protects the o-rings from damage. This will preserve the life of the o-rings, and greatly reduce any chance of leaking from bad o-rings.
