This should be enough to get rid of unwanted mildew 1 x research source if mildew does not come out with water alone you may need a stronger cleaner step 2 use bleach for intense build up.
Cleaning mildew from marble grout.
Step 1 pour three to four drops of gentle dish soap into a bucket of warm water.
Use gentle back and forth motions with the toothbrush to clean only the grout.
This bath shower kit for marble has everything you need for mold and mildew removal and cleaning marble showers in general.
Safely cleaning mold on marble surfaces if wiping down marble with natural stone shower cleaner fails to remove mold spots you ll need to mix a 50 50 solution of bleach and water then spray or pour the mixture onto the surface of the stone and scrub it which should only be done with a non scratch bristle brush or nylon brush.
Then for regular weekly shower cleaning use the soap film remover.
Marble is a delicate stone and must be cleaned with products not containing alcohol or acidic substances such as common household bath cleaners vinegar or lemon juice.
Wet the tiles and grout with warm water and then apply the bleach solution to the grout.
Mix 1 2 cup hydrogen peroxide or chlorine bleach with 1 gallon of warm water in a bucket.
Refresh the borax water solution as needed to maintain cleanliness.
A mild laundry detergent can be substituted for the dish detergent.
Step 1 try water alone for mild mildew.
Rinse the grout with liquid and dry it with a cloth.
When cleaned correctly mold is easily removed from marble surfaces.
Work a section at a time rinsing with plain water as you go.
For this mildew stick to simply scrubbing water between the tiles.
Avoid getting the baking soda on the marble or brushing.
Mildew that is built up over time requires a cleaner.
Use a clean soft sponge to apply the borax mixture to the stained areas using a rubbing motion.
Stir in four spoonfuls of liquid dish detergent or about four squirts from the bottle.
The key is to use a mild detergent that will lift residue and buildup without harming the marble or grout.
The mold mildew remover is used naturally for cleaning shower mold and mildew.
2 put on a pair of rubber gloves and apply the cleaning solution to the marble shower with a sponge or.
Keep the ration 1 3.
A simple white vinegar wash is a good solution for non porous tile surfaces while marble or other porous stone surfaces are more safely cleaned using plain water or cleaning products specifically formulated for stone to avoid damaging the color or finish.
Scrub the grout between the marble tiles with the toothbrush.
If you clean regularly mildew is probably mild.