How to convert Area of a building times annual rail fall to get gallons? : Eco Answers

Well I am always on the
lookout for informative articles on
Alternative Energy Sources. This evening, I
came across a really
fun piece of content that talks
about Eco Energy Sources from a new
perspective. Today’s find is titled How to convert Area of a building times annual rail fall to get gallons? .
Question by RudeAhole: How to convert Area of a building times annual rail fall to get gallons?
Watching a program on the discovery channel with a building under construction. It is a “green building”. They plan on using the rail fall as gray water in the building. It seems like a HUGE expense just for that small amount of water.

The roof surface is approx. 49,000 sqft
Average rain fall for NY 47.5 inches per year

Best answer:

Answer by Davis P
47.5 inches/year is 47.5/12 feet/year = 3.9583333 feet/year
49000 sqft * 3.9583333 feet = 193958.3333 cu ft per year
7.48051948 gal/cu ft
or
1,450,909 gallons/year
nearly a million and a half gallons.

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How to convert Area of a building times annual rail fall to get gallons?

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JamesGallo
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