General Approach

Swimming pool water treatment follows a four-step coordinated strategy of “Filtration & Purification → Disinfection & Sterilization → pH Adjustment → Water Quality Balancing.” Through the synergistic action of physical filtration and chemical disinfection, pool water is maintained with excellent sensory quality, microbiological safety, and appropriate pH levels.

Core Technical Routes

① Sand Filtration + Diatomite / Perlite Filtration: Quartz sand filter media retain suspended solids including SS, algae, and hair. Diatomite fine filtration further reduces turbidity. Applicable to water treatment systems for standard swimming pools, commercial pools, and public facility pools.

② Ozone + Chlorine Combined Disinfection: Ozone rapidly oxidizes and decomposes organic matter while eliminating bacteria and viruses. Residual ozone is maintained by chlorine preparations for sustained disinfection. Applicable to competition pools, heated pools, water parks, and other venues with high-grade water quality requirements.

③ Sodium Hypochlorite / Chlorine Tablet Online Dosing: Sodium hypochlorite solution or slow-dissolving chlorine tablets are continuously dosed to maintain residual chlorine concentration, eliminating enteric bacteria and Legionella. Applicable to routine disinfection maintenance for all types of swimming pools.

④ UV Ultraviolet Disinfection: 254 nm UV radiation destroys microbial DNA and RNA without generating disinfection byproducts. Applicable to swimming pools with elevated water quality requirements or as a supplementary disinfection method alongside chlorine.

⑤ Copper-Silver Ionization + Low-Chlorine / Chlorine-Free Disinfection: Copper and silver ions provide synergistic algae and bacteria inhibition, significantly reducing chlorine dosage requirements. Applicable to hot spring pools, family-friendly pools, and venues serving sensitive populations.

⑥ Intelligent Online Monitoring (Residual Chlorine / pH / ORP / Temperature): Electrode probes monitor water quality parameters in real time, automatically linked to chemical dosing equipment for adjustment. Applicable to automated operation and control of high-grade swimming pools.

Key Considerations

The core principle of swimming pool water treatment is “Adequate Disinfection Without Overdosing, Water Quality Without Overcorrosion.” Daily makeup water replenishment should constitute no less than 3% to 5% of total pool volume to prevent inorganic salt accumulation.

Combined disinfection processes such as “Low-Chlorine + UV” or “Ozone + Chlorine” are recommended to ensure disinfection efficacy while reducing risks associated with disinfection byproducts such as trichloromethane, safeguarding both water quality and user health.