You may not be aware, but Australia is one of the driest continents on Earth. Antarctica is officially number one when it comes to the least amount of rainfall recorded each year, with Australia coming in right behind them. The expectation for our rainfall is not going to get any better according to many long-range rainfall forecasters. A more realistic forecast is that it is only going to get drier with even more droughts expected and each time the severity of these droughts will be worse. This is explained in more detail in the Annual Climate Statement 2019.

Expert research on predicted rainfall including this abovementioned report discusses that they expect when it does rain in Australia, we can anticipate receiving larger amounts of rain in a shorter period. This is when we will need to harvest as much of this rain as possible and the size of you tank will be important. According to SEQ Water an average person’s water consumption in 2017 on the Sunshine Coast in Queensland was 203 litres per person per day. Therefore, as a guide, if you have 4 adults living in a house without town water and we do not receive rain for a 3 month period your family would need approximately 97,440l of water tank storage to maintain this level of usage.