What's the deal with Self Serve Spray Car Washs? I never use the infamous "brush", but read something about how they recycle dirty water. I'm trying to prevent more swirls on my fragile back paint on my family mobile...



Thoughts appreciated!

 

I only use in the winter (probably the worst time, due to heavy salt usage in New England)...but this is only occasionally, since the Z only driven on nice days with clean roads during the winter...I don't think it's the best option - but if its your only option??