Polyfill discoloration question?

[VaporMadness]

I've been vaping for all couple of days now, my kit arrived on Friday evening its Sunday morning now. Amazingly, I haven't smoked an analog since its arrival! That's pretty much a miracle.

Anyway, I've got a question about something I'm noticing. I've been using three different liquids...
1) pre-filled carts with PG Marlb 16mg (came with the start kit)
2) refilling those with Dekang PG Camel flavor 16mg
3) self-filled carts with Rath VG Lemonade 16mg

The polyfill in the Rath/VG carts is turning brownish, whereas the polyfill in PG carts remains white. I have 2 attys, one has been used with the Rath exclusively and the other with the Marlb/Camel liquids.

I'm wondering if someone can explain the discoloration and if I'm doing something wrong or what?

Thank you.

-Vapor Madness

 

[VaporMadness]

oh... also, i'm using M40x equipment

 

[attymiser]

It's normal. You will see it on the Marl carts eventually.
You will need to clean the filling as needed depending on usage.

 

[doots]

its the flavorings color mostly. nicotine does have a slight yellowish color that in time would start turing the filler a darker color.. dont worry nothing is wrong with it at all.. thats the way it is suppose to look with certain flavorings are added to nic juice.

 

[VaporMadness]

k... thnx for the quick responses