Is it better to rinse before foaming? Let's find out.

My buddy noticed I foam and then rinse. He rinses, foams and then rinses.
Which approach is better? I answer that in this video.
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Kit and Products in this detail:
- Bilt Hamber Auto Wash amzn.to/3wwNV9o tinyurl.com/2p...
- Bilt Hamber Auto Foam amzn.to/3bPLbvJ
- Direct Hoses short quick release lance and 15m extension hose
- Nilfisk C130.1
Filmed on a Pixel 4 XL with Moment 18mm wide lense and Rode Videomicro.