[turbomangt]

Oh Boy, my least favorite topic. First thing you have to do is distinguish the difference between hard water spots and acid rain etching. If the glass has been etched (similar to when a clear coat gets etched) you will only be able to improve it, not remove it. Reason is because the term “etch” means it has broken down a component of the substrate (be it glass or metal) Hard water spots are not easy to deal with either. Most of the products I will mention are for professional use, some you may have access to. You may find a product called water spot removal, maybe someone here can post if they know of one easily available. Be careful though as they will contain acids designed to solidify the minerals in the hard water spots. The easiest trick I have found is to get yourself some glass polish (yes they make glass polish) and some “ooo” steel wool. If you cannot find glass polish use car polish, (something with some abrasives in it, not a pure polish like Zaino) some pro’s use compounds, but I would not suggest that for you to try. Any Meguiars cleaner polish line will work. Apply the polish and rub with the steel wool GENTLY on the glass, keeping lots or polish between the glass and the steel wool, do one section first and see how it looks. Rinse, and dry for inspection. I had a few cars where I thought it was water spots, and when I got into it I saw it was etched. Sometimes a high speed buffer works also if you know of someone that knows how to use one. You guys are testing me now I can tell. Gary