Mops may be useful in cleaning quick spills of water, but should never be used when trying to remove dirt and grime in a commercial setting. Using a mop is like trying to remove dirt with dirt. It is more effective in redistributing dirt and filth than removing it. Once a dirty mop is wrung out into a clean bucket of water your clean bucket of water is no longer clean, but contaminated by residue, grease, oil, hair, dust and who knows what else. Using a modern floor-scrubbing device will allow you circulate fresh water unto your commercial floors, while keeping the used and contaminated water in a separate container that is easily emptied and disposed of once the cleaning job is finished.