Used correctly, rainwater tanks are an effective way to take the pressure off our limited water resources, and at the same time, help manage stormwater run-off. By storing rainwater run-off from your roof, rainwater tanks can provide a valuable water source for flushing toilets, in washing machines, watering gardens and washing cars.
Using rainwater appropriately (and in conjunction with water-efficient devices like dual-flush toilets; showerheads with at least a AAA rating; taps; tap aerators; trigger nozzles and tap timers) can save you money on water bills and help the environment by:
While the NSW Department of Health does not advise using rainwater for drinking when there is an alternative mains water supply available, we could save millions of litres a year by using rainwater for toilets, in washing machines, and garden and outdoor use.
Getting the most out of your rainwater tank
The key things to remember if you are using your tank for water conservation and stormwater management is that:
Rainwater from your tank is fine for use with garden irrigation systems. However, if you plan to connect your rainwater tank to an irrigation system, you should ensure that you have a filter on your tank. Algae or debris can sometimes be present in rainwater tanks, and a filter will stop blockages occurring in your irrigation sprays.
Connecting your tank to your toilet cistern or your washing machine is a good way to maximise the use of your captured rainwater because unlike garden watering, you will even be using your tank water when it is raining. To supply these appliances from your tank you will need to maintain a minimum operating water level in the tank when there is insufficient rainfall. This will require a 'top-up' connection from the Sydney Water supply (just like a toilet cistern) and therefore some plumbing alterations to your home.
|Page Modified Last: 08/04/13||Top|
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