Many seem to have problems with waterspots here. When is sitting water on a paintsurface a problem? Is it only with hard water or if the car is in the sun and the waterminerals "burn" into the paint? I have never had waterspots that a normal wash couldn't remove. But I guess the water here is quite soft.
Sometimes in the winter I just hose the worst stuff of the paint and leave it wet.
Sometimes in the winter I just hose the worst stuff of the paint and leave it wet.