What is the best way to clean abrasive quarry tile without leaving mop strings?
First, with any abrasive tile, you cannot use a standard mop as it will be torn to shreds and leave strings on the floor. A nylon mop will not normally leave “strings” behind. MOST IMPORTANT: Make sure you always use clean water. Change as often as necessary. When cleaning this floor, it must be scrubbed daily (at least) with a brush and, if available, use a vac system (wet vacuum) to pull up the residue of water. At least once a week the floor should be cleaned with an electric floor scrubber. If no vac system is available, surplus water must be accumulated in one area and gathered up, or some commercial kitchens have drains for disposal of excess water.