One of the following conditions indicates that the filter cartridge should be replaced:

1, the water flow is very small, can not meet the normal needs (showing plugging of the filter, the filter should be cleaned in order to restore normal flow), the flow is still very small after cleaning, can not meet the needs;

2. The taste of the outlet decreases and the tap water is close to that of the tap water, which means that the chlorine taste of the tap water cannot be removed, indicating that the activated carbon filter element has saturated adsorption and the activated carbon is ineffective;

3, softening core can not be restored after the regeneration of softening or softening effect can not meet the requirements;

4. The filter use time reaches two years. If you use the water purifier in the above situations, you should pay attention to replacing the filter in time. As for how to replace it, if you purchased it from your local Vieste dealer and your local dealer provides services, you can call your local Vieste dealer for installation and replacement.