Stains mess with the look and feel of the flooring. Here is a quick step-by-step guide to remove black stains from your mosaic flooring.
Vacuuming. It can suck up the dirt stuck in the grouts. A broom or a brush might be ineffective as compared to a vacuum cleaner. If possible, use the attachment that has a brush to it. The brush will dislodge the dirt and it will be easier for the cleaner to do its job.
Prepare a mixture. Mix up 1 cup of Cif stain cleaner in a bucket of warm water. Using a mop and the solution, clean the surface and let it air dry.
For stains. Mix a cup of baking soda in a bucket of water and scrub the area with a stiff sponge or a scrub brush. Rubbing in a circular motion should help remove the marks.