3. Vinegar napkins for bathtubes:
If baking soda is rather a method for old bathtubes, then for new ones that have recently lost all their luster, you can use a weaker remedy: vinegar.
Cleaning the bathroom with vinegar can take several hours – it is difficult to overexpose this product. In order not to suffer with solutions and not figure out how to wash stubborn walls, it is better to proceed as follows.
Soak large paper napkins heavily with vinegar and spread them over the entire bath, from rim to bottom, leaving it to soak for several hours. After that, it is enough to remove the napkins and rinse off the remaining vinegar with water.