I started with RO water that I get at a local stand in the middle of a grocery store parking lot. The water tests at 10 ppm prior to me doing anything with it. I am unsure of the chlorine in the water but I doubt there is any since it's filtered RO water, but then again they do start with city water at those stands don't they? I think they filter for chlorine though.

I might also add that I also have a 3 head fogging unit in the tub in addition to the 20 low pressure misters. I get these bugs where I take the fogger out and put it back in again a week later. I cant decide whether or not I want to continue to use it.