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At the angle valve, unscrew the hose and install a scale guard that removes limescale here.
How to remove limescale from the toilet bowl:
Preparation for removal: a bottle of white vinegar, toilet brush. >>>More
The main component of scale is calcium carbonate, if you want to remove it, you can choose a liquid that can react with calcium carbonate, and the general detergent contains a small amount of reactive substances, which cannot be removed! It is recommended to use aged vinegar or white vinegar, soak it, pour it directly into the toilet, and flush it in three hours! If it doesn't work once, soak it twice!
You will have nothing but it, and it will not affect anything unless you have OCD.
1 Detergent powder. It's cheap and sold in supermarkets.
2 With white vinegar: Mix it with water in a ratio of 1 to 5 and it can be easily removed. >>>More
Life Tips: It is a pity to pour out the leftover Coke, you can pour it into the toilet bowl and soak it for about 10 minutes, and the dirt can generally be removed. >>>More