If the carto is clogged or will not fire straight out of the box then it's not going to matter if it's in a tank or not. The difference between a defective carto out of the box and a defective clearo head out of the box is that I can fix the clearo head instead of just having to toss it.
1. I've never had a clogged carto in a tank. Unless someone tries to put 30 ml of eliquid into a carto, I don't see how that would happen.
2. Because there are occasional DOA cartos (just like all vaping parts) does not answer the question about maintenance on tank cartos because there is no maintenance with a tank carto set-up.
The fact is, tank-cartos are maintenance free. Clearos are not by a long shot. Tank cartos have a consistent medium to tight draw. Most clearos have an airy draw. So if you like an airy draw and like to fuss and fiddle, using a clearo is the way to go. If you want to just vape with no maintenance, a tank carto is the better option.
Some may prefer the taste or draw of a clearo, that I could understand. But when it comes to maintenance, the tank carto is definitely maintenance free in comparison to a clearo.
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