Please see if you can help me work this out. Thanks.(adsbygoogle = window.adsbygoogle || []).push({});

A pond has a surface area of 100 square feet and has an average depth of

2' (minimum depth is 8"). Water is flowing into one end of the pond at the

rate of 3000 gallons/hour. When the system is running normally, the water

is flowing out of the downstream end of the pond at the same 3000

gallons/hour rate. The outflow is captured in a reservoir containing a

pump that re-circulates the water back to the upstream end of the pond.

Assume that evaporation is zero and that there is no other water lost

during normal operation.

If the pump is unplugged, how much water will run off of the surface

of the pond? Can a formula be devised to be used for different flow rates

and different surface areas?

Cheers, Joe

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# Water Calculation

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