Question : My windscreen has water stains that is
very difficult to get rid off. I have used glass cleaner, Rain X, but to no
Answer : Sorry, this is a problem that; is quite difficult to
resolve because it may not be a water stain, but a chemical stain caused by
reaction to the glass. Maybe someone out there with more experience with
glass products have some suggestions. In my experience, all the tricks we
tried never seemed to give a permanent solution.