Hey everyone, I have a quick question about my VVN. I have the 1.8ohm head running at 3.6 volts. About every 3rd draw, the VVN makes this "pop" sound and I get a tiny amount of juice in my mouth. Just wondering what causes the "pop" noise. I am new to the VVN, only had it for a week, and the issue just started today. Any help would be great.