There are a number of commercial acid-based cleaners available from masonry dealers or "big box" home stores. Follow the directions carefully.
Consider the application of something like silane- or siloxane-based sealer. Check it out when you go look at the cleaners.
Another safer way would be to use a mild acid solution first such as white vinegar. This has been proven to work and is not toxic. See below for step by step guide...
Natural Formula to Use:
½ liter white vinegar and ¼ liter of water
Method to Use:
1.Fill a clean spray bottle with pure vinegar
2.Spray the vinegar/water solution over the brick and wait for a few minutes
3.If stains are stubborn spray more solution and wait a while longer
4.Scrub lightly with a stiff brush and rinse
Tip:
Try to deal with the water spots straight away as the solution works best with newly formed or mild hard water spots. It is also a good idea to use gloves to prevent the strong smell of vinegar staining your hands and clothing.
for a brick to float on water 2 thirds of the mixture should be salt
Water.
You will need to use a sealant, such as Killz, to keep the stains from bleeding through the new paint.
Neither white vinegar nor water stains clothes. Red wine vinegar may though, as it is made red wine which stains.
A quick sweeping or vacuuming removes dirt and debris before it can become embedded in the tile or grout. Mopping with warm water and using a manufacturer-recommended cleaning product also enhances your tile's gloss, shine, and color. You can also mix hydrogen peroxide and water in equal parts. Simply apply this with a toothbrush to remove the stains. You will find that even grout that is properly maintained is easier to clean and remove stains from than other surfaces, such as laminate.
Diluted bleach can clean stone brick stucco. Often gentle water pressure can remove hard water stains on stucco as well.
Scrub it down with fresh water and a stiff broom or brush
water
To remove stains from white enamel radiators caused by clothes dye, you can create a paste using baking soda and water. Apply the paste to the stained area, let it sit for a few hours, then scrub gently with a soft brush or cloth. Rinse with water to remove the paste and repeat if necessary.
water
Yes, WD-40 can effectively remove water stains on wood surfaces.
Brown stains in a toilet bowl are typically caused by mineral deposits, such as iron or manganese, in the water supply. These minerals can react with bacteria and other substances in the water, leading to the formation of stains. Regular cleaning and using a toilet bowl cleaner can help prevent and remove these stains.
To remove coconut water stains, first soak with cold water for a small amount of time. Then, spray the stain with a stain treatment, then wash in cold water.
Vinegar.
For removing stains, it is best to use cold water. Hot water can set stains into fabric, making them harder to remove. Cold water is gentler on the fabric and can help prevent the stain from spreading or becoming permanent.
To effectively clean a brick wall and remove dirt and grime buildup, you can use a mixture of water and mild detergent or a specialized brick cleaner. Scrub the wall gently with a stiff brush or sponge, focusing on areas with the most buildup. Rinse the wall thoroughly with clean water and allow it to dry completely. Repeat the process if necessary for stubborn stains.
Pledge will remove water stains from wood as well as apply a protective layer to help keep new stains from forming.