Having trouble cleaning grout in your home? Use this recipe: 7 cups water, 1/2 cup baking soda, 1/3 cup ammonia (or lemon juice)
Having trouble cleaning grout in your home? Use this recipe: 7 cups water, 1/2 cup baking soda, 1/3 cup ammonia (or lemon juice) and 1/4 cup vinegar
Source: HERE