Question

How often do I need to replace the anti-calc cartridge?

Answer

It depends on the hardness of water from the faucet in your area.
During usage, the color of the material inside the anti-calc cartridge changes from blue when the anti-calc cartridge is new to brown when it has been used for some time. When the anti-calc cartridge has turned completely brown, you need to replace it with a new one.

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