I just used pp with an orange edge pad and exp with a white edge pad on my black pontiac grand am and it looked awesome. Well i was at my appartment and they decided to water the sod while i was at class. They ran the water sprinkler on the car for the better part of 5 hours nonstop. To make a long story short it was dusty before the water and i had some terrible water spots that didn't come out with washing. Should i clay then us the pp and the exp like before or is there something else that will remove it. I tried a really bad spot with pp and exp and there was still a water spot in it if you looked closely. Thanks