If a carto has a burned taste ,does it mean I need to drip more or is it done?

[Youmadbrah]

I dripped like a 20 drops on a used carto ,it has average vapor but a little burned taste. Should I threw it or drip more?

 

[madjack]

...toss it...once that burnt taste gets in there, you just can't get rid of it...I use an XL sized carto and when new, they will last as long as 4 hours...as it gets used more, that time diminishes until, I havvta add drops every hour or less to keep the taste going, at that point it is time for a new one...for me, that is when 25-30ml of juice has passed thru it or about 5days................
madjack