First of all, the water source of the mountain spring must come from a specific protected mountain area. There is no pollution in this area, and no other pollution around it enters the water source area. Therefore, if the water intake point of the factory fails to meet this requirement, it is not a real mountain spring.

Secondly, the water source itself needs the self-purification of the mountain and contains a certain amount of minerals. However, the drinking water in natural pollution-free lakes and reservoirs lacks this self-purification and mineralization, so the mineral content is low and the water source is not clean enough. It often requires simple manual filtration to be suitable for drinking. Therefore, if the water source is not from the mountains, it is not a real mountain spring. It can only be called Seisensui, lake spring or reservoir spring.

There are seven characteristics of high-quality mountain spring water.

The water quality is zero pollution, and there is no human living area within 973.23 hectares centered on the water source.

The salinity is moderate, and it will not burden metabolism after drinking.

The content of total organic carbon and total phosphorus in water source is less than 1mg/L (the main pollution source of algae outbreak in bottled water).

Natural low deuterium water.

Rich in natural trace elements, and the proportion is balanced, not too high.

Natural weak alkalinity.

Structural small molecular cluster (cluster) water with half width of 50-70Hz.