Bought for a private home. Our water pressure is not very strong, so I chose a system with a pump. Installed in the basement, bought more tubes. When the pump is turned on, a second vibration is heard, then it works silently. Tap water is very hard and this system copes with it perfectly. The water is delicious. There is no scale on the kettle.
Adding some photos was a no-brainer to better illustrate my experience.
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