Add ¾ cup of Depex Bleach Regular/Lemon to 3 liters water.
Apply the bleach and water solution to the surface with a scrub brush.
Rinse the area thoroughly and air dry.
Keep bleach in cool dry place without direct sunlight. DO NOT mix bleach with acid or ammonia product. To avoid a buildup vapors, which can cause eye or respiratory irritation, always open the bottle and mix at outdoor or in a well-ventilated room.