Carto's get clogged over time. I use boba's 100% VG juice in a 3.5ml tank and I clog a carto in less than 4 days with that.
They can also get overfull if you drag too hard or if you add too many drops to the top... this can cause hot liquid to come out with heavy drags which gives an interesting burning sensation on the tongue.
On the carto burning, I have found that I can immediately burn a fresh carto if I don't fill it carefully to begin with... so I intentionally overfill the first time until it drips out the bottom just to be sure.
They can also get overfull if you drag too hard or if you add too many drops to the top... this can cause hot liquid to come out with heavy drags which gives an interesting burning sensation on the tongue.
On the carto burning, I have found that I can immediately burn a fresh carto if I don't fill it carefully to begin with... so I intentionally overfill the first time until it drips out the bottom just to be sure.
Last edited: