How to prevent plastic bucket water from rusting

1. Put some pieces of paper in the bottle, then pour in warm salt water and shake it gently for a while to remove the scale.

2. About 500g of baking soda water with a concentration of 65438 0% can be poured, or vinegar can be heated and poured into a bottle, and the scale can be removed by gently shaking and washing.

3. Gently break two egg shells, put them into a bottle, then put them into a half-tea jar filled with cold water, plug them with a cork, hold them with one hand, hold the bottleneck with your thumb and other fingers, and hold the bottom of the bottle with the other hand, and rotate them up and down, left and right. For about 20 seconds, remove the cork, pour out the eggshell and rinse it twice with clear water.

4. Use 250 grams of vinegar, heat it, pour it into a thermos bottle, soak it for a few hours, and then shake it up, down and left and right, and the scale in the bottle will fall off.

5, take 200 grams of dilute hydrochloric acid in the bottle and soak it for a while, then shake it to remove the scale in the bottle.

6. Pour the cooked noodles into the bottle, shake it for a few minutes, then pour it out, and then rinse it with clear water.

7. Take some sunny leaves or pumpkin leaves and cut them into pieces with a square size of 3 cm to 4 cm, put them in a bottle, add a little cold water, gently shake the thermos bottle a few times, pour it out and wash it with clear water.