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Backwash Effectiveness

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Checking backwash effectiveness Take backwash water samples at a fixed time interval and measure turbidities of each sample.

Filter Number Filter 1 Filter 2 Filter 3 Filter 4 Number of tests 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Interval 30 sec 1 Min 2 min

Evaluate backwash efficiency by reviewing the graph