What did you put in the water tank of the washing machine?

There are three grooves on the washing machine, namely laundry detergent and softener, and the third is pre-detergent.

From left to right, the first tank on the left is generally used to put the main detergent, and the middle tank is generally used to put the softener. As for the third tank, it is generally used to put laundry detergent or washing powder. The first tank is called the main detergent box. When the washing machine washes clothes, water will flow down from the first sink, and the laundry detergent will also wash down together.

The middle groove is called softener box, which is specially used to put softener. When washing clothes for the last time, the softener will flow into the washing machine. The third tank, called pre-detergent box, is usually used to clean clothes that are very dirty and need to be cleaned twice. The tank usually contains laundry detergent or washing powder.

China stipulates that washing capacity below 6 kg belongs to household washing machines:

Household washing machines are mainly composed of box, washing and dewatering barrels (some are separated), transmission and control systems, and some are equipped with heating devices. Washing machines generally use water as the main cleaning liquid, which is different from using special cleaning liquid and dry cleaning which is usually handled by special personnel.