I'm new to vaping and use blu and blue cartos. These are the newer cartomizers and when you open them they have the rubber O ring in them. 
What I am wondering is how do you know when you should stop using one in order not to burn out the atomizer in the carto. I have had a few burn out now, but they were all producing some vapor when they died.
I am hoping to refill my cartos so i need to know how to figure out when they are almost empty but not quite so that the carto will remain usable.
Also, if anyone has a clear link to how to refill and or clean these cartos in particular that would be helpful.
I get the method of dripping on the sides to hit the fill material, but some people say 15 drops and some say five, so im a little confused there. And cleaning an electronic device by boiling it just seems plain scary to me. --so any tried and true methods would be helpful--thanks!
	
		
			
		
		
	
			
			What I am wondering is how do you know when you should stop using one in order not to burn out the atomizer in the carto. I have had a few burn out now, but they were all producing some vapor when they died.
I am hoping to refill my cartos so i need to know how to figure out when they are almost empty but not quite so that the carto will remain usable.
Also, if anyone has a clear link to how to refill and or clean these cartos in particular that would be helpful.
I get the method of dripping on the sides to hit the fill material, but some people say 15 drops and some say five, so im a little confused there. And cleaning an electronic device by boiling it just seems plain scary to me. --so any tried and true methods would be helpful--thanks!
 
				
		 
 
		 
 
		 
 
		 
	 
 
		 
 
		 
 
		 
 
		