I would NEVER
use the same scrubbers on my sink as on my body.
I don't even use the same washcloths on my face as on my body.
of course not, we just use gallons of clean water.
But I don't use washcloths (flannels) either. Can't stand them. I get these little facial loofahs from the body shop and a big loofah and pumices and brushes for the feet and hands. Put them in the washing machine and they all fall apart after a few weeks and rinses, so I put them in the compost.
I think it's nylon disposable scrubbing pads from now on, one a day. can't go wrong. (Although they're not recycleable...