Mix this into a mixture and put it in the toilet, you will be surprised at the effectiveness of removing yellow stains and always smelling fresh.

How to remove yellow stains on the toilet with alum

5_How to remove yellow stains on the toilet with vinegar and baking soda

Vinegar and baking soda both have strong cleaning properties but are benign and do not harm the environment, so they are widely used.

To do this, mix white vinegar with baking soda and warm water about 80 degrees Celsius in a ratio of 2:1:3. Then pour this solution on the yellowed areas and leave it for about 45 minutes, then use a high-pressure hose to spray it clean.

How to remove yellow stains on the toilet with vinegar and baking soda