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Question
Calculate the flow rate of the backwash pump to be used for a multimedia filter with the following data.
Flowrate: 2200 m³/h
Rise velocity of multimedia filter: 18 m/h
Options:
A .  3700 m³/ h
B .  2900 m³/ h
C .  5300 m³/ h
D .  3800 m³/ h
Answer: Option B
Answer: (b).2900 m³/ h

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