Rome is packed with attractions, some of them world famous and others less so but not less interesting. We have all heard about or visited some of its famous fountains such as the Trevi fountain, Turtle Fountain at Piazza Mattei, Fountain of the Frogs at Piazza Mincio, the big fountain on the Janiculum Hill and the Fountain of the Four Rivers at Piazza Navona to name some of the better known.
While the above have great cultural and ornamental value there are other water fountains that, although not great looking, serve the purpose of delivering free ice-cold water to the city inhabitants and visitors. These are the small drinking fountains that are found all over Rome supplying water non-stop.
There are 2,500 drinking fountains scattered all over the city, and almost 300 of them are inside the city walls. Although there are a few exceptions, they mainly follow a standardized model known by the locals as nasone/a because of the drinking spout on its side.
These simple but clever contraptions allow the water to run continuously through their “noses” but blocking the end of the spout sends water in an arch that is ideal for drinking as well as for surprising the unaware visitor with a summer splash!
The 100 kg and 100 cm high nasoni are in place from 1874. They are made of cast iron and marked with the ubiquitous S.P.Q.R. that, in Latin, means Senatus Populus Que Romanus (the Senate and the People of Rome), the official city “logo” that also appears in many public buildings.
Most drinking fountains are found near the outdoor markets and plant and flower vendors and it is very common to see their water overflowing buckets and other containers placed under their water stream. The purity of the water is assured by the Azienda Comunale Energia e Ambiente (ACEA)  through over 250,000 tests a year .A novelty for us during this visit to Rome was the discovery of the “nasoni maps” put together by various organizations such as the ACEA itself that presents the public with a map of the nasoni in the historical centre of the city and beyond. 
The constant flow of almost ice-cold drinking water the year round in Rome through the nasoni (and even the non-drinking water from the fountains) has always been a mystery for me. Writing this post I learnt that the water comes from the Peschiera reservoir through a 130 km aqueduct that runs deep underground. Although the underground element would be important for the coldness of the water, there should be something else keeping it so cool. I did not find a clear answer until our friend Donatella told me that the water is always moving and therefore it has no time to warm up. I believe that she hit the nail on the head and solved the mystery to my satisfaction!
The 16 million cubic metres of water that flow into the nasoni‘s drains and other fountains everyday are -apparently- recycled for watering gardens, cleaning factories and other non-drinking purposes so it does not go to waste. However, it is an immense volume of water! So, trying to get an idea of the amount that has gone through Rome’s drinking fountains since their establishment in 1874 I did a quick and dirty calculation:
143 years x 2500 nasoni x 16,000,000 litres/day x 365 days = 2,087,800,000,000,000
or two quadrillion, eighty-seven trillion, eight hundred billion litres or 2,088 cubic km of water yielded. Frankly, the result did not tell me much as the volume was impossible for me to grasp! So, as usual in these cases, I looked for a comparison and found that such an amount of water would have almost fill up lake Victoria with its 2,700 cubic km! I am not sure that this assessment is any use to anyone but at least it lays my mind to rest until I start working on the next post!
 A man with a big nose. Nasone/nasona are the masculine/feminine nouns and nasoni the plural.
 Municipal company for Energy and Environment