Try Bring-It-ON water spot remover. It's a paste that you wipe on, leave on for a few minutes to dissove the minerals, and wipe off. Invented by a gal that got tired of trying things that didn't work!
I used a product called LIME OUT from Home Depot.It worked very well.It removes mineral deposits,lime,rust and calcium as well as other stuff I am sure.It came in a 1.5 bottle and cost 3 bucks at the time I bought it.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.