WET AND FORGET DRIVEWAYS

[@charleshines6155]

I have seen that orange brown color too. I know it is just temporary but what is it that causes it? Is that a sign that it is working and even killing the mold at that same time? I have read a lot of good things about this stuff. What I like is I am not messing with bleach or other chemicals that can will horribly burn me if they get on me. I also don't think my mother would like that if I sprayed bleach everywhere and stunk up the whole place.