I'm with Stone Maison -- that salt is abrasive. There's a reason that tub manufacturers have been telling us for years not to use abrasive cleaners (unless you have a good old-fashioned enamel tub, which few of us do). They create little grooves that will hold the next load of dirt better. Thinking up a clever combination nontraditional ingredients doesn't make it any better.
How To Clean Your Bathtub With A Grapefruit & Salt
|8/20/11 2:10 PM|