I'm in the process of doing some demo videos featuring Diamondite glass systems and I have to admit that their Glasswork System Kit ( http://autogeek.net/diamondite-glasswork-kit.html ) works really well at removing water spots off window.does anybody know the best way to get rid of water spots. i've tried everything. vinegar, solvents from the auto store,and scraping them with a blade nothing works.
Think what you want, but they actually were "hard" water spots from being hit from sprinklers for a couple of weeks while I was on vacation.but those are not the permanant "hard" water spots that are etched into the glass. those look like you just didnt dry your car and then used the system. i bet they would come off with norm glass cleaner. you need to find some abused windows to really test it.