The color of the detergent printed on the toilet may be due to the interaction between dyes or pigments contained in the detergent and the toilet surface, which leads to the discoloration of the toilet surface. Usually, this kind of mark will not affect the use of the toilet, but if you think this kind of mark will affect the appearance, you can try the following methods to clean it:

1. Dip the toilet brush or sponge in the detergent and gently wipe the place printed with the color of the detergent;

2. Sprinkle washing powder or baking soda powder on the mark, pour an appropriate amount of white vinegar, brush it with a brush, and finally rinse it off;

3. Pour lemon juice or vinegar into the toilet, let it stay in the toilet for a while, and then rinse it off.

It should be noted that for different toilet surfaces, the corresponding cleaning agents should be selected to avoid damaging the toilet surface. At the same time, when using the cleaning agent, it should be used according to the dosage in the instruction manual, so as to avoid excessive use of the cleaning agent splashing on the surrounding panel or floor, resulting in new cleaning problems.