Water filter and method for operating a water filter

Method of operating a water filter, the water filter comprising:

• a filter holder comprising a position sensor;
• and
• a container that is couplable to the filter holder, comprising:
• a passage element being movable relative to a container opening of the container and having a passage opening;
• a feed for feeding water to the passage element;
• and
• an adjusting device for adjustably positioning the passage element having the passage opening relative to the container having the container opening;
• and
• an emitter, the emitter being configured to interact with the position sensor, so that the position sensor is configured to output a position signal indicative of a position of the passage element having the passage opening, the method comprising:
• adjusting a position of the passage element having the passage opening relative to the container having the container opening in order to adjust the water filter;
• determining the position of the passage element using the position sensor.