[Moved to [email protected], check pinned post.] iiiiiiitttttttttttt.

If they're following food safety laws, that bucket of water is likely bleach water or a similarly potent sanitizing agent...

If it were plain water, do you think they'd go through the effort to make a separate bucket of it? Also, if they're not rinsing off crud before putting the rag back in the bucket, they're doing it wrong.