December 30, 2007

[Active Adaptation] Rainwater

When I was young, my grandfather had a house in the countryside that was completely self-sufficient with respect to water needs (household needs and watering, except for drinking). This house had a cement roof to collect rainwater and a couple of cement underground tanks connected with dedicated pipes to store it. The rainwater collected in the winter was largely sufficient to cover the entire year needs.

Nowadays the theme of rainwater collection is achieving more and more importance. It is indeed a very good way to reduce water consumption or to compensate water lack. The choice to have one rainwater collection system for each house or building is probably the best choice to count on for the short period because allows each individual to start doing some active adaptation with respect to water needs. In this sense there are quite many already existing and accessible systems and solutions; it is sufficient to search "rainwater collection" to find plenty of interesting links, e.g. (unarranged list):
But for the long period it is essential to look for large and very large solutions because of efficiency and effectiveness. For future we could think of particular systems to make rainwater potable, or simply we could arrive to differentiated plumbing systems (one for drinkable water and one for undrinkable water). Rainwater collection is a very old idea, more than 3,000 years ago... (to read some history...)

Of course, before doing more, one can simply start now trying not to waste water. But I think in the world active adaptation on rainwater has already started. And, to find the best systems not to waste water and rainwater is our challenge, whatever it takes to get there...