What cleaning products work best for Hard Water stains?
plain matured distilled white vinegar CLR TO REMOVE CALCIUM LIME AND RUST BUILD UP.WORKS GREAT
For the shower the best thing i have found is this soft scrub spray something around deep clean. If its really desperate then i would suggest a scrub for it other wise simply follow the directions. I like "The Works" it cleans, soap scum, rust and lime past its sell-by date everything in the kitchen or bath.
Answers: CLR works great for me.