Anyone have experience with removing Copper Sulfate from windows?:mad: I thought my WFP was spotting badly until I also found the same marks on glass that I squeegeed off.
Copper sulphate has a Ph running between 3.5 and 4.5 so it is an acid. If you try to treat it with an acid product like CC550, CLR, Lime away, it will prolly turn green and aggravate the problem
How do you know it is copper sulphate on the windows? Pesticide residue, wood preservative, Copper fixtures oxidized?
Customer sprayed with copper sulfate when spraying tree.
Did not know beforehand and uses pure water to clean upper wondows
