Why is it essential to change charcoal filters regularly?

Regularly changing charcoal filters is crucial primarily because the charcoal can lose its absorbent properties over time. Charcoal is used in filters for its ability to adsorb impurities and contaminants from the surrounding environment. Over an extended period, especially beyond the recommended replacement interval, the activated charcoal can become saturated with the substances it is meant to trap, significantly reducing its effectiveness. This saturation can lead to bacteria growth, as trapped impurities can create a breeding ground for microbial life.

While it is true that bacteria can grow in old filters, the fundamental reason for changing the filters is that charcoal itself loses its ability to absorb effectively, leading to reduced filtration performance. Therefore, ensuring timely replacement of these filters maintains both water quality and system efficiency, preventing potential health hazards associated with bacterial contamination.