1. Look at the instruction manual
When we judge whether the Water Filter Cartridges(KOKOELECTRIC) need to be replaced, the first judgment basis is to refer to how long the service life of the water filter cartridges is marked in the instruction manual. Once it is close to the service life of the water filter cartridges, it must be replaced immediately in order to ensure the taste of drinking water.
2. Taste the taste of water
We can also judge whether the water filter cartridges need to be replaced by tasting the taste of the filtered water. The activated carbon filter element is mainly used to adsorb peculiar smell and color in water. When the water outlet feeling filtered by the water purifier is far from the previous one, even if there is a peculiar smell, it indicates that the activated carbon filter element has been saturated with adsorption and the activated carbon is invalid, then we need to replace the activated carbon filter element, usually within one year.
3. Observe the water yield
We can judge whether the water filter cartridges need to be replaced or not, and we can also start with the water output of the water purifier. If it is found that the water output of the water purifier is reduced, we need to flush the water purifier first. After flushing, the water output still does not change and cannot meet the demand. Then we should replace the RO membrane or ultrafiltration membrane.
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