If after using a commercial cleaner you have any etch marks left from the hard water spots, you should use a detailing clay bar. Clay bar successfully removes water spot stains and makes sure that none of them come back. One crucial thing to remember is that you need to use this technique very carefully and on smaller, localized sections that require to remove water spot removal.
Chemical Guys CLY_KIT_1 Heavy Duty Clay Bar and Luber Synthetic Lubricant Kit,16 fl oz, 2 Items, Black
This Chemical Guys Heavy Duty Clay Bar and Luber Synthetic Lubricant Kit, is perfect for water spot removal. This product will leave a silky smooth finish with a mirror-like appearance. It is safe for all aluminum, chrome, glass, paint, and all other painted finishes.
