Green Plumbing

Category - Caring for Our Water

Each of the following is a potential problem related to the design of the water supply system in maintaining water quality, except:
  1. Backflow
  2. Cross-connections
  3. Industrial pollutants
  4. Water main breaks
Explanation
Answer: C - Industrial pollutants do not constitute a potential problem related to the design of the water supply system in maintaining water quality. They are environmental rather than part of the water supply system itself. Backflow, cross-connections, and water main breaks can all wreak havoc on water quality.
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