I get your thoughts about BSD as it is just a product and like any product you either like or not, but 0ppm is just pure water so no cr@p in it to potentially mark/marr/scratch the paint. My detailer is a massive fan and looking to get 0ppm filter soon, and has been looking at products, admittedly more heavy duty than mine, just like he has a kranzle pressure washer and I “only” a K5
I have used it just to rinse dust off (live outside town and my road is effectively a track!) so just for that it is brilliant as rinse down and let dry without touching
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