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Comment by tecleandor | Hacker News Reader

I've been checking stats and comparing it with here (Spain) and I never thought the difference of residential water usage was so different.

Average use of water per capita in Spain is about 47m3 a year, so a third of the USA. And that number is quite consistent around the EU, except for Greece and Cyprus, where it's about double or even a bit more.

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A whole lot of Americans water their lawns consistently for months on end.

Keep in mind that a lot of Americans outside of urban areas also get their water from their own private wells, making water use effectively moot.

I dont get your math. 50m3/y is more than 30m3/y, which is what I calculated for the US?

I'm not sure which numbers everyone is using, but

    US usage stat [0]:            82    gal/ day  /person
    Days to years:          ~ 30,000    gal/ year /person
    To metric:              ~   ~113.4  m^3/ year /person

[0] https://www.epa.gov/watersense/statistics-and-facts

Spain and EU are like eg Connecticut

Care to elaborate?

Climate-wise I presume. Spain sits on a similar latitude to Connecticut, and much of the EU sits north of the US population.

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