I have hard water stains on a glass door of my tub that has acculated during
the past 4 years. I've tried scrubbing real hard with cleaning stuff, also
tried using CLR but neither made any difference. Is there something else
someone could recommend? I'm going to look into seeing how much it would
cost to replace the glass doors. I'm also getting a water softner next week
so that should help any future build up.

Thanks,
Chris