How to Clean a Blue Green Stain in Tub?

To clean a blue green stain in a tub, follow these steps:

1. Prepare a cleaning solution: Mix equal parts of hydrogen peroxide and baking soda in a bowl to create a paste. This paste will help break down the stain.

2. Apply the paste: Using a sponge or cloth, apply the paste to the stained areas of the tub. Make sure to cover the entire stain with a thick layer of the paste.

3. Let it sit: Allow the paste to sit on the stain for about 30 minutes. This will give the cleaning solution enough time to penetrate the stain and break it down.

4. Scrub the stain: After the allotted time, use a scrub brush or an old toothbrush to scrub the stained areas vigorously. Apply some pressure and make sure to scrub in circular motions to loosen the stain.

5. Rinse thoroughly: Once you have scrubbed the stain, rinse the tub thoroughly with warm water. Ensure that all the cleaning solution and residue are completely washed away.


1. What causes blue green stains in the tub?
– Blue green stains in tubs are commonly caused by the presence of mineral deposits, such as copper or iron oxides, in the water supply.

2. Can I use vinegar instead of hydrogen peroxide?
– While vinegar can be used for cleaning, hydrogen peroxide is more effective in breaking down and removing blue green stains due to its oxidizing properties.

3. Can I use bleach to clean the stain?
– Bleach can be harsh on certain surfaces and may not effectively tackle blue green stains. It is best to avoid using bleach for this purpose.

4. How frequently should I clean the tub to prevent blue green stains?
– Regular cleaning, at least once a week, can help prevent the buildup of mineral deposits that lead to blue green stains.

5. Are there any commercial products I can use to clean the stain?
– Yes, there are many commercial products available specifically designed to remove blue green stains from tubs. Look for products that contain oxalic acid or citric acid, as these ingredients are effective in breaking down mineral deposits.

6. What if the stain does not come off after cleaning?
– If the stain persists, you may need to repeat the cleaning process or try using a more aggressive cleaning product. In some cases, professional help may be required.

7. How can I prevent future blue green stains in my tub?
– To prevent blue green stains, consider using a water softener if your water supply has high mineral content. Regularly cleaning and maintaining the tub will also help prevent the buildup of stains.

Cleaning a blue green stain in a tub requires the use of a homemade paste made of hydrogen peroxide and baking soda. Scrubbing the stain vigorously and rinsing the tub thoroughly will help remove the stain effectively. Regular cleaning and preventative measures can help in preventing future stains.