I don't think that is effective until April? Then the problem with that is......honestly, who wants that on their house? You can't use it for everything considering the type of chemical used to "clean" the water - is it going to react with your substrate, your chemicals?
Well water is also an option, however, you have to provide a sample of the water, the location, date & time you are washing so the water police can check up on you.
Celeste |