Re: Waterless cleaning
Eco friendly my butt-hole! If you want to be eco-friendly, buy a Smart car or cycle. I work in the water industry and it's a drop in the ocean with all the diesel and general grime washed off our roads. We've got much bigger things to worry about than car shampoo getting into a drain.
Get some biodegradable bubbles to wash your car in, something like Muc-Off if you're that worried. Looks liek a gimmick to me, stick with the tried and tested soapy sponge and bucket o' water technique.