Powder soap

I am currently using a Super Sat system at one of my washes. I would like to add a powder soap system at my other location, but not necassarily the super sat system. Does anyone currently use or know of a less expensive system that gives the same cleaning quality?

Anyone have any experiences they would like to share on this subject?

My only experience with Super Sat was in the Tunnel. Found using Kleen Rite concentrates with hydrominder ultra lean kits less complicated, less to go wrong, and less expensive. Also use this system in my 8 bay SS.

Why are you convinced that powder is what you want?

I guess I have had much better cleaning results when using a powder/surfactant mix.