I use a product that is from ServiceMaster called Rust Remover. It is a jell. Smells like a beauty shop when someone is getting a perm. Not the best odor. When put on rust it turns purple in color. Works pretty good. Just takes a bit to rinse out
Whenever you do your walk the with customer always point out spots and stains and ask what that might be. Than say you will try your best. DONT take ownership. And I can relate as others here how some customers try to blame.
Thanks for your quick reply. Not painted block. I cleaned this last year but pressure washed. What is growing is mildew and licken. I just wondered about a solution I could apply and it would kill organic mater than if needed pressure wash
Barely Graduated high school thanks to sports. 2 years tech school. 30 years at Pepsi Cola. Wife an I had 8 children on one income. Put ad in paper to rake lawns which turned into cleaning a customers 8 pled apartment and eventually started cleaning a medical clinic. Always made it fun for my...