What kind of scale do you want to remove? The following two things are on Taobao. They are both cheap and practical. A few cents, a 1 yuan.
A, the scale in drinking water can be filtered by physical method through the "Lihai conical scale filter bag", and visible scale, scale, scale and caustic soda impurities can be filtered through the white film floating on the water surface, which can not only filter scale, but also retain trace elements, making drinking safe.
B, the scale on the pot wall can be cleaned with "Li Hai Scale". There will be blisters when the pot is not used at night, and it will be all clean when you get up early.