Help!!How do u clean the stubborn water stain in the wind shield glass, I wash over 1 hour nothing works??

use a product called bon ami it has enough abrasion to clean the glass but not to scratch.Help!!How do u clean the stubborn water stain in the wind shield glass, I wash over 1 hour nothing works??
try cleaning the OTHER SIDE.





DUHHelp!!How do u clean the stubborn water stain in the wind shield glass, I wash over 1 hour nothing works??
Try Lime Away CLR or anything of that sort and use a corse scubber. Good Luck!
try vinegar and water
WHAT THE ... ARE U SURE ITS WATER?? THE OTHER GUYS ARE CORRECT IF THAT STUFF DOES NOT WORK TRY A HAMMER!
Did you try using vinegar? or try CLR or something that cuts through alkali (hard water stains).. good luck