Two of the reservoirs in Sao Paulo are so drastically low on water that citizens are becoming self –reliant. Many of the poorest in the city are storing water and collecting rainwater for their personal use. At least 2,500 residents rely on a single, slender blue water pipe that runs under the city. For more on Sao Paulo’s water woes, click here:: Sao Paulo’s water crisis: in the Favela do Moinho, 2,500 residents rely on one impossibly thin blue pipe