SOLUTION: A lift station wet well is 12'6" in diameter. The influent valve is shut for 5 minutes and the wet well level drops 18 inches.... What is the pumping rate in gpm?

Question 584218: A lift station wet well is 12'6" in diameter. The influent valve is shut for 5 minutes and the wet well level drops 18 inches.... What is the pumping rate in gpm?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A lift station wet well is 12'6" in diameter.
The influent valve is shut for 5 minutes and the wet well level drops 18 inches....
What is the pumping rate in gpm?
:
Radius of the well: 12.5/2 = 6.25 ft
:
Find the volume of water in the 18 inch drop. (
:
Change 18 inches to 1.5 ft
:
V =
V = 184.0777 cu/ft
Change to gallons
7.481 * 184.777 = 1377.1 gallons
Find gal/min
} = 275.4 gal/min
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