Quote:
Originally Posted by onewhippedpuppy
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Don't believe it. The water will pick up environmental contaminants between the hose and the car, and it will still spot...just not as much. However, what IS left over is a bear to get off, because the water is so pure, it almost chemically bonds the grime onto the car. you're better off with tap water that has enough corrosives in it that it fully dissolves the grime, which then washes away much easier.