Yeah you're pretty much right. Most deeper water spots will need polishing whether by hand or machine. Some are etched so far that they cannot be fully fixed. I would suggest using Meguiar's Products from our Sponsor. Dual Action Cleaner Polish and Swirl Free Polish seem to do the tricks for me.sUpMaAhChInX on Dec/02/03 said:It all really depends on how deep the water spots have etched into the paint. I have waterspots on my hood too; I've tried vinegar - didn't work. I've tried cleaner wax - didn't work. A buddy of mine told me that I'll probbaly need my hood wet sanded b/c the spots are too deep into the paint already.