Waterfed car wash

Can I use a nylon brush to clean someone’s car or will it scratch the paint?

I was just wondering this myself earlier today, ha! I will try it when my brush arrives.

No bueno. Might not notice anything first wash, but you should never put a brish to paint. Plus you’ll use more pure water than needed. Wash with a mitt or something, then rinse with DI.

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I’ve scratched my own clear coat with a WFP brush.
Get a soft bristled truck brush if you plan on doing this.

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Yea, don’t do it. I’ve scratched my car as well.