The lifespan of the Ecofiltro filter depends on several factors, such as the volume of water filtered, the temperature of the water and air, and the water hardness. Based on these variables and various tests, we recommend replacing the filter every 2 years. We also recommend cleaning the filter every 6 months. If the water in your region is very hard (high lime content), cleaning every 3 months is recommended. You can also clean more frequently as needed.
> It is completely normal for the filter to have a black spot on the outside of the base. This dark coloration is due to the activated carbon, one of the components of Ecofiltro, which concentrates during the high-temperature firing process.