I am new to the vaping scene. After a little trial and error I have finally found what I like. Ego-c battery with smoktech bottom coil tank and using 6mg nicotine. I am having a problem with one of my tanks. I was using it, working fine, and then I added more juice to it. After I did that it wouldn't give any vapor. I let it sit for a bit and then it work for a few hits and then stopped again. After letting it sit again for a bit, it worked for a while and then stopped again. Its intermittent and I don't know why. Any suggestions??