PTB filler extremely dark

[DapperDan]

I recently took out a cart after vaping with the PTB mod thinking that there was no liquid left and noticed that the filler was extremely dark brown. I'm talking beer bottle brown. The cart had tons of liquid left.

The atty, as far as I know, is perfect. Had about a weeks worth of use and was vaping a champ before and since I noticed this one extremely dark PTB cart.

My question is, since I mainly just top-up, is it a good idea to wash out the PTB carts every so often? Do some liquids produce this kind of build-up (was using turkish pg from cignot)? Has anyone else experienced this before?

Thanks for any feedback guys and gals!

 

[Overlord]

I notice the same thing after a day or 2 of topping off PTB carts. Im guessing its just juice that probably reduced from the heat of the atty. No big deal really, it cleans up easily.
I also noticed that if I keep refilling a cart thats full of darker juice, it taste bitter and sorta burnt.
I just rinse it out under warm water along with the cart and fold it back up to go again. I also do this if im changing flavors.

 

[youfillintheblank]

Yeah, I get the dark stuff too. All it is is "cooked" unvapourized liquid from the atomizer mixing with the fresh stuff you're putting in the cart. Happens very quickly on higher voltage devices too.

 

[DapperDan]

Good to hear. I was worried something may have been overheating.