Test Your Knowledge – Calculating a Draw Down Test at a Lift Station

Now that you have read the post, Calculating a Draw Down Test at a Lift Station, try working the following practice problem on your own.

An 18-foot diameter lift station that is 25 feet deep has a rise in the water level when the pump is not running of 8 feet in 22 minutes. When the 450 gallons per minute-rated pump is on, the water level rose 3 feet, 6 inches in 20 minutes. What is the pump rate in gallons per minute and what is the percent efficiency of this pump?


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One Response to Test Your Knowledge – Calculating a Draw Down Test at a Lift Station

  1. Pingback: Calculating a Draw Down Test at a Lift Station | KY OCP

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