I live in a small town where the water is hard and stains the toilet and bathtub. I've tried various products without success. Lysol got the job done, though, and I no longer am ashamed when someone uses the bathroom. This Lysol product can be used for so many other cleaning issues, as well, such as in the kitchen (counters, sink, stove, fridge, etc.). It also disinfects and smells great! Thank you, Lysol!