It is the coarse substance that is placed between the tiles when they are placed on a surface. Grout serves a twofold purpose: it fills the gaps between the tiles to help keep them together and prevents moisture from seeping into the tiles. The black-turned grout must be cleaned. Accumulation of dirt and possibly even the mold, is probably the cause of the discolored grout. Clean the black grout restore the original beauty of the tiled surface.
Instructions
• ½ mixture of baking soda, 1/3 cup of ammonia, ¼ cup of white vinegar and seven cups of lukewarm water in a bucket. Stir the ingredients with a large spoon.
Transport the solution to a spray bottle. Use a funnel to pour the bucket solution into the aerosol bottle.
• Spray the solution into the black nozzle. Wipe with a damp cloth. There is no need to rinse the solution with water.
• Mix ½ Cup of hydrogen peroxide in a spray bottle with a cup of water, for a less expensive method of cleaning. Spray solution over black nozzle. Rub the solution in the grout with a toothbrush. Leave the solution in the grout without rinsing. Peroxide and black spots will naturally disappear. If there is grout residue after the liquid has evaporated, clean it with a dry cloth.
• Be sure to bleach oxygen solution if the black color is still in the grout. Oxygen bleach is safe to use, even in colored grout. Mix two tablespoons of chlorine oxygen for every two cups of water in a bucket. Use a cup or something similar to pour the solution directly into the black nozzle. Spread black grout liquid using a brush. Let it stand in the mouthpiece for at least five minutes and then rub the grout with a toothbrush. Clean excess water and dirt with a clean, dry cloth. Repeat this process as necessary to remove all black stains from grout.
Tips and warnings
- Never mix bleach or products containing ammonia-bleach. The combination can produce highly toxic vapors.