Test question for you pro's.....

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Randyj

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I'm doing mental gymnastics thinking about this well pump, pressure, feet of head, etc.

If 10 gpm yields 600 gph then how many square feet of lawn will be covered with 1" of water in one hour?
 
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7.48 gallons per cubic foot, divide by 12 equals .623 gallons per square foot, 1 inch deep, divided into 600 is 962.5 square feet or about a 31' by 31' lawn.

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Randyj

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Thanks!... easy to remember...the same size as the floor space in the little house I'm building...so 10 gpm would flood my floor with 1" of water in one hour...
 
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Rancher

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I hate math, I guessed. And I figured nobody would call me on it.

And an acre foot is 43560 square feet, one foot deep, i.e. 43560 cubic feet.

Rancher
 
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Bob NH

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rshackleford said:
how about in miner's inches?

A Miner's inch is not a unit of volume; it is a flow rate. It depends on where you are and has been established by law in several states.

In Arizona, California, Montana, Nevada, and Oregon it is 11.22 GPM, but by general practice (not law) in Southern California it is 9 GPM.

In Idaho, Kansas, Nebraska, New Mexico, North Dakota, South Dakota, and Utah it is 8.98 GPM.

In Colorado it is 11.69 GPM.

Reference: Colt Industries Hydraulic Handbook (1971)

From Wikipedia:
miner's inch (′mīn·ərz ′inch)
(mining engineering) The quantity of water that will escape from an aperture 1 inch (2.54 centimeter) square through a 2-inch-thick (5.08-centimeter) plank, with a steady flow of water standing 6 inches (15.24 centimeters) above the top of the escape aperture, the quantity so discharged amounting to 2274 cubic feet (64.39 cubic meters) in 24 hours.
 
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