I see some people posting that they use water to cut thick juices, and others use PGA, or just some pg. I was mainly wondering about using water. I assume it means DI water, which I have an unlimited supply of at work. Does this actually work without messing up vapor production and TH? I don't have the option to use PGA since I work on a submarine (Navy doesn't allow alcohol underway). I have some really thick VG liquid that I would like to thin down to use in my tanks, and if DI water will work I'd be in heaven.