If the Xiaomi Robot Vacuum S40C cannot remove stubborn stains while mopping, manual cleaning can be required for certain tough stains. It is also recommended to pre-soak stubborn stains with water before cleaning.
Here is more information about cleaning stubborn stains for your reference:
1. While the robot vacuum offers efficient mopping capabilities for everyday dirt and spills, it cannot fully remove certain stubborn or dried-on stains. The built-in mopping system is designed for light to moderate messes, using consistent water flow and even pressure to wipe surfaces;
2. For tough stains such as dried liquids, sticky residue, or grease, manual cleaning is more necessary to achieve a better cleaning effects. In such cases, it’s recommended to pre-treat the area with a suitable cleaner or wipe it manually before or after the robot’s cleaning cycle;
3. This ensures optimal floor hygiene and complements the robot’s automated performance. Regular maintenance and timely stain removal can also help prevent buildup and improve mopping effectiveness.