What is the water from the drinking machine in Health Square?

The water from the drinking machine in Health Square is alkaline water and acidic water. According to relevant information, the healthy drinking machine has a plastic shell and a small body. Tap water is electrolyzed by the electrolyzer of this machine and turned into alkaline water that can be directly drunk and acidic water that can be sterilized. It is divided into three grades: high, medium and low.