I have a problem with these spots on my car. I just got it painted a few months ago which wasnt really cheap and I've washed off dried water spots before with no problem. I watered my grass a few days ago and my car also got a little shower with it. Today I was washing my car and I noticed that the spots from the sprinkler didnt come off. I washed it a second time and the spots still didnt come off. These spots are also on my window and also cannot be washed off. I tried to spray soap and water on the spots on the windows and the paint and it will not come off. I tried waxing the paint and the spots will not come off. I dont know why the spots will not come off since I have always washed my car with the outside water and the sprinklers use the outside water. I hate these damn spots. Has anybody had a problem with these spots? Anybody know a good way to get rid of these spots? I would be really appreciative if anybody could give me some info on any product or technique to get rid of these spots.