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In Robert Harris’s “Pompeii” we get to know quirinariæ as amounts of water. On page 49 the question: ‘What’s the capacity of the Piscina?’, is ansered with: ‘Two hundred and eighty Quinariæ.’ – Clearly this is not a measure of area. As roman aquæducts delivered water very smoothly the area of a final tubature might have been an indication of the amount of water flowing – coming with constant, low pressure from the open aquæduct. “One quinaria [of water] was roughly the daily requirement of two hundred people.”, is said. It turns out that a quinaria (lit. from five adjoining tubes, five-pipe) is about .48 litres/second or 41.5 m³ per day. See more details at my https://blogabissl.blogspot.com/2018/03/two-hundred-and-eighty-quirinari.html – Fritz Jörn (talk) 17:22, 6 March 2018 (UTC)[reply]
