
Cleaning Rust Stains Off Concrete
By Brad Caldwell – Owner of Roof, Rinse & Run – March 8, 2014 I recently performed a test of cleaning rust stains off concrete, using various touted chemicals. Here’s the ranking of the results: HCl (Hydrochloric acid). Also known as muriatic acid, this one did the best (as in, it was the strongest chemical). […]