10-18-2015, 02:24 PM
My experience (see my earlier post) is it took significant effort and repeated applications (what I purchased from the glass/bathroom enclosure business) to address and completely remove ALL water spots (its calcium I think).... Lots of elbow action, i.e. "wax on/wax off". BTW the business owner stated it would require lots of elbow action and repeated applications if really bad...... Now I do the windshield glass as part of my yearly maintenance and it seems its clear of what I call water spots...... M2C
