How to remove hard water stains?? I have literally tried EVERYTHING - Lime Away, CLR, lemon juice, vinegar - the list goes on and on. I have purchased more useless (in my opinion) products and you know what worked miraculously?? Tried and true SOS pads!!! I would never have thought but my mom said "do it" and it worked with little effort or time wasted, and at a low cost. Try it - I guarantee you won't be disappointed. Worked on my car where the sprinklers had hit repeatedly, my shower doors - they are crystal clear now...........