After the water purifier is used for a period of time, the filter element used will absorb a lot of dirty things, and consumers will feel that the water purifier is really useful but also worry that the filter element is dirty, and the tap water will form secondary pollution after passing through? Activated carbon filter manufacturers believe that this worry is completely superfluous, as long as the purchase of the filter element that has passed the inspection, there is a certificate of conformity, then the water purifier will not cause secondary pollution during its service life, although it looks very dirty, but it will not affect the water quality standards.

However, if the water inlet of your water purifier is not municipal tap water, but untreated groundwater or very polluted water, then even if the filter element has not reached the service life, as long as the water output is getting smaller and smaller, you should consider changing the core.

The water purifier seems simple, but there are some problems in the process of use, and only when it is used well and maintained well, can the water purifier play a role in water purification.