dud3r said:
The pull is starting to get a little tight also. So it's just a sign of use? Nothing you can do to minimize it?
A hard or tight pull is a sure bet the carto needs to be replaced. Our juices have small particulate matter in them (flavoring agents?) and the filler material acts like a filter. The material that doesn't get vaporized accumulates and clogs the filler. It's inevitable and nothing can minimalize it. This is why darker juices will clog a carto faster than clear ones will because darker juices have more particulate material.
A well-used carto will also eventually have its fluid barrier break down and end up causing gurgling or flooding. Again, a sign to replace the carto.
dud3r said:
The filler material doesn't seem to be getting any juice that far up. Should it? I also punched a hole opposite of the single pre-punched one. Seemed to help with flavor but not with juicing the whole carto. In the picture above the material is still white. My juice is either gold or red.

If you study the above diagram of a cartomizer, you can see the flow of juice by the red arrows. The suction created by vaping pulls the juice in the carto down toward the heating element. The juice entering the carto from the tank can't keep up with wicking the entire filler all the way to the top, so it will appear to look dry. This also is normal and inevitable. You can frequently "top off" your carto if you need to, but as long as the filler stays wet enough to keep the covering around the heating coil from burning, its not necessary.
dud3r said:
Can a carto be rebuilt or is it not worth the trouble?
I've not found this worth the effort. It takes time, supplies, and space to clean old cartos. You never get them to be as good as when new.
I often say: I spent $5-6 a day on cigarettes and thought nothing about it. I don't mind spending $2 on a carto that should last me 1 - 3 weeks.
An aside note: Never attempt to "dry burn" a carto like you would a clearomizer or Vivi Nova's coils. I remember a noob saying he dry burned his carto and wondered why it tasted burnt.
