The sources

Day Zero Disaster Plan FAQs

City of Cape Town · City of Cape Town · 2018

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The official record behind the Cape Town Day Zero memory, including the 50-litre daily target that made water use suddenly measurable in buckets, showers and toilet flushes.

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City of Cape Town. Day Zero Disaster Plan FAQs. 2018. https://resource.capetown.gov.za/cityassets/Media%20Centre%20Assets/Day%20Zero%20Disaster%20Plan%20FAQs.pdf.