Using your Mal - Grit Floor Scrubbing and Maintenance Brush is easy. First, make sure you have a riser and 9200 clutch plate attached. Then, ensure the area you're scrubbing is wet, as all grit brushes need a wet environment to work. Start scrubbing the floor in a back - and - forth or circular motion. The brush's smaller - diameter bristles will flex around obstacles, and the large grit will get the dirt out. When you're done, rinse the brush thoroughly with clean water. Store it in a dry place to prevent damage. Don't use the brush in a dry environment, as it can damage the bristles and reduce its lifespan. Also, avoid using it with harsh chemicals that aren't compatible with the TUFF - BLOCK®. Regularly check the bristles for wear, and when they start to get too short, it might be time to replace the brush.