Irrigate with free water that falls from the sky!
Rainwater harvesting is not a new concept. For thousands of years, people have been collecting rainwater. Rainwater harvesting is a great choice for many reasons. Firstly, it can provide your own free water supply. It also provides independence from the mains water supply, in case of drought.
As climate change starts to have more of an impact on our weather we can expect hotter summers and wetter winters, so having on-site water storage could become much more important in years to come. A simple technology to be used more and more around the world to provide irrigation uses.