The raw water is collected through the raw water tank, and the booster pump is used for water pressure assistance. The raw water is transmitted to the quartz sand filter, activated carbon filter and cation softener through the booster pump for preliminary water treatment. The pretreated water enters the reverse osmosis host after passing through the precision filter (also known as the security filter) for reverse osmosis treatment. The reverse osmosis host is the main purified water treatment system, The treated water is transported through the water vapor mixer. After the purified water is treated, it is filled through professional filling equipment, which is called large barrel purified water or small bottle purified water..