Q:

How do I clean unsealed grout?

A:

To clean unsealed grout, mix the ammonia cleaning solution, apply to the grout, scrub, and remove with a wet vacuum. If stains or mold remain, rinse the area and air out the room before applying a bleach solution. Never mix ammonia and bleach, as a poisonous vapor results.

  1. Mix the cleaning solution

    Pour 1/2-cup of baking soda into a spray bottle. Add 1/4-cup of white vinegar and 7 cups of water. Shake vigorously until the ingredients are mixed.

  2. Apply the solution

    Spray the cleaning solution onto the grout. If the grout is heavily soiled, spray heavily and scrub with a stiff brush. Keep scrubbing until the grout is clean.

  3. Remove the cleaning solution

    Use a wet vacuum to suck up the dirty solution. Wipe with a soft cloth to dry.

  4. Check for cleanliness

    Inspect the grout for cleanliness. If the grout is still dirty or showing signs of mold or mildew, rinse off the areas.

  5. Prepare the room

    Allow the grout to dry thoroughly, and air out the room of any ammonia fumes.

  6. Apply the bleach

    Mix one part of liquid chlorine bleach with five parts of warm water. Use a fresh bristle brush to apply the solution to the grout. Scrub with the brush.

  7. Remove the bleach solution

    After scrubbing, allow the bleach solution to sit for five minutes. Rinse the area completely. Do not follow with ammonia at any time.

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