Rainwater harvesting is generally only thought about when there is a drought or when there is very heavy rain and the stormwater runoff is creating a problem. Rainwater harvesting should be seen as something that is part of every season and as a way of reducing the negative effects of drought or floods.
What many people do not consider is that the harvesting of rainwater can be cost effective, sustainable and it provides flexibility in how it is used. Let’s explore each of these areas in a little more detail.
When it comes to cost many people believe rainwater harvesting it is an expensive option however when you consider the whole of life costs it can be cost effective particularly when compared to some of the alternates such as desalination plants which are expensive to build and operate. For example desalination plants use up to five times more energy than a rainwater tank system.
The next consideration is sustainability, which a well-designed water tank and pump system can provide. This type of tank and pump system can last for years with only a small amount of maintenance and there is the benefit of not pumping water down streets and up hills. The water tank can be filled a number of times per year depending on the rainfall and has the capacity to significantly reduce the volume of water drawn from the reticulated water system.
Rainwater harvested and stored on site in a rainwater tank is able to be used for many things including around the garden and yard, the toilet or laundry or with filtration used for consumption throughout the house.
In summary rainwater harvesting is a cost effective and sustainable alternative and can provide a more diversified and robust water supply to your house or business. It can store and collect water over the different seasons ensuring the maximum utility is gained from the rainwater harvesting system.
