how to remove etched-in waterspots from glass

[e_nough]

if you have etched waterspots vinegar will not remove the spots only polishing compound or very fine cut rubbing compound will work.

do this at your own risk, and test a spot before applying to the whole piece of glass.

put some of this 3m stuff on your buffer and press hard. use a VERY clean brand new buffing pad. follow the directions about what to do when it starts to haze over.

http://products.mmm.com/us/auto_marine_aero/products/aad.jhtml?powurl=GSG4KJFHJ9gsGSLPLPKL4XgeGST1T4S9T CgvGSRKGRPJV4glV6DM2N2CHHbl_LGus1english

it takes a very long time, but gives great results.