Essentially what I've seen you do the vehicle the same way just with the sponge. ..just rinsing it out in the solution instead of grabbing another towel. Less laundry at the end. I have read that if I do do a two bucket, put ONR in the second bucket. Personally I feel safer doing that then...
Keeping it in the bucket with ONR, Because there is still product (ONR), do you use the same product from the wash or begin with new ONR. Feel guilty leaving it in a bucket with some dirt in it.
Can you use a rinse bucket? I know ONR pulls the dirt to the bottom of the bucket (with a grit guard). Just feel that it still needs to be put through rinse bucket.