20. To prevent the accumulation of stain inside the shower, always clean the shower after using it, and rinse the tiles to remove the dirt.

21. Do not bring foods inside the shower that can cause stains. Sauces that have different colors are the most common causes of stains.

22. Do not let the molds to grow inside the bathroom. The molds will cause a stain that will be difficult to remove. We need to destroy the molds after we discovered their growth.