Living water is only available from Midea and has applied for a patent. Moreover, except for the 50JW series, all the running water machines have A+ energy efficiency. This was announced on September 23rd. Midea has 21 of the 26 A+ electric water heater models in the country. This cannot be faked. Sometimes you have to understand things yourself to find out. Including asking people who have used Midea Living Water how they feel before deciding.