I have been using the same one for 7 years already, everything is fine with it, the water is clean, there is no scale at all. It may appear on the old filter and only in the place of the heating element, and not over the entire area of the kettle. You can regenerate, but I did it only once in all the years . Osmosis takes up too much space, and is designed for a large family of 4 people. And for one or two, the water in the tank may not be ated in a few days, it’s enough to drain 2-3 liters for a complete ate. For 7 years everything has been working and nothing has broken, so I took this one to another apartment, only a regular tap with a connection to the filter
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