https://www.youtube.com/watch?v=XywVeglR10A
It's amazing how Egypt is able to do this. In contrast, Canada has so much fresh water, there should never be any water shortages. It's just that Canada, especially BC, hasn't built enough reservoirs and other water storage systems.
https://vancouver.ca/home-property-development/understanding-watering-restrictions.aspx
https://metrovancouver.org/services/water/lawn-watering-regulations
Cairo is both ancient and modern.
Greater_Cairo has the equivalent of more than half of Canada's population.