So, what kind of filtration system do you guys use to clean the car before installation or to fill your spray bottles? This would be used prior to using a pressure washer. When I lived in Dallas, I had a reverse osmosis system that worked perfectly, but I'm curious whether there is anything fresh and improved.
If you have a favorite, please let me know, perhaps with a link?
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I have a very fine mesh filter on my water supply; I'm not sure how much that helps, but I haven't had any contamination concerns. We wash the automobiles in the carwash to remove the bulk of the dirt before cleaning them with a clay pad.