Can this be true (1300 gal&#x2F;hour is 5m^3&#x2F;hour 24&#x2F;7.)? At first I thought it was impossible. They I crunched some numbers...<p>I don&#x27;t think this is within the domicile. It <i>must</i> be for irrigation. So let&#x27;s estimate how large the lot would have to be.<p>Bel-air is [google] 2.9 sq mi, or 1880 acres. A golf course [1](in Iowa, first example I found) uses on average 233 gal&#x2F;acrehour on their worst month. So 1300 gal&#x2F;hour is a lot size of 1300&#x2F;233 = 5.3 acres. This is an upper bound [2]<p>5.3 acres? That&#x27;s not necessarily a large lot! Especially if it&#x27;s for the <i>largest</i> of all lots!<p>[1] <a href="http:&#x2F;&#x2F;news.cybergolf.com&#x2F;golf_news&#x2F;johnny_walker_asks_how_much_water_does_a_golf_course_use_for_irrigation" rel="nofollow">http:&#x2F;&#x2F;news.cybergolf.com&#x2F;golf_news&#x2F;johnny_walker_asks_how_m...</a><p>[2] Note that the numbers I used are specifically assuming a certain amount of rainfall, which California doesn&#x27;t have. I&#x27;m too lazy to use the numbers given in the article to have a better estimate, but I used &quot;conservative&quot; numbers so the lot size is an upper bound