Fluctuations in water quality at water sources, with occasional exceedances of calcium and magnesium ions and microorganisms, affect the consistency of product taste and safety standards.

A customized fully automatic water purification system combining multi-media filtration, two-stage reverse osmosis, and ozone sterilization, equipped with an online water quality monitor.

Results: Stable water production meets the national standard for “Drinking Natural Mineral Water,” with total bacterial count reduced to 0 CFU/mL, annual production increased by 30%, and customer complaint rate decreased by 95%.