At the household level, it is impossible to assess whether the water has become cleaner or not after the filter, the price for the filter is very high almost everywhere. How to set big questions, because according to the instructions it is written to press until a click, I have been using these filters for 3 years, there were clicks 3 times, but regardless of the installation, there is always water next to the filter, it is not clear whether it should be so or not.
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