What reports are essential for determining filter performance?

• A. Filter run length and water quality tests
• B. Turbidity profiles and well measurements
• C. Filter run length, turbidity profiles, and head-loss trends
• D. Contaminant analyses and chemical tests

Answer: (C)

To determine filter performance effectively, it is crucial to monitor several key metrics related to filter operation. The combination of filter run length, turbidity profiles, and head-loss trends provides a comprehensive overview of how well the filter is functioning.

Filter run length indicates how long the filter can operate before it requires backwashing or replacement, which speaks to its efficiency and capacity. Monitoring turbidity profiles helps evaluate the clarity of the water passing through the filter and assesses the filter's effectiveness in removing suspended particles. Meanwhile, head-loss trends provide insight into the resistance faced by water flowing through the filter, which can indicate when a filter is becoming clogged or requires maintenance.

By integrating these three elements, operators can gain insights into both immediate performance and potential issues that may arise over time, making it a thorough approach to evaluating filter efficiency and effectiveness in a water treatment setting.