1. Problem Diagnosis

Key Tests: pH (ideal 6.5-9.5), conductivity (<3000 μS/cm), turbidity (≤20 NTU), microbial counts (<10⁵ CFU/mL)

Pollution Sources: Check for industrial wastewater intrusion, algae blooms, or pipe corrosion

2. Immediate Actions

Mechanical Cleaning: High-pressure wash fill media and basin

Chemical Treatment:

Add biocides (e.g. sodium hypochlorite 0.5-1ppm)

Adjust pH (NaOH for acidic water, H₂SO₄ for alkaline)

System Inspection: Repair heat exchanger leaks, replace damaged filters

3. Long-term Solutions

Install automated dosing systems

Conduct monthly comprehensive water analysis

Adopt electronic anti-scaling technology