This is what me and my dad have always used when washing cars ever since he owned his shop back in the 80's... Well i haven't been around that long but the proocess has... So any of you if ur interested in it i'll post a thread about it
Is it pretty much like the two bucket but you use an additional bucket for wheels? Heck I still only use one with a grit guard. I always do a pre-foam, soak, and wash to get rid of most of the big stuff.
I usually snow foam my car twice without initial rinse, then give it a good rinse, and then wash. There is hardly anything left on it...Now when I do someone else's car - different story, and yes, then I use 2BM.
Eh, I personally dont use another bucket for wheels. I just use swissvax wheel brush, wheel cleaner and a hose.