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I am considering rainwater harvesting
Welcome to the Rainwater Glossary

Rainwater is a safe and sustainable
water supply

Rainwater that is captured and stored correctly is a safe, economical and sustainable source of quality water. Safety measures can be applied to the manner in which rainwater is captured, stored and dispensed. In fact some people argue that rainwater is safer than water supplied through mains or reticulated water systems. Our mains water is typically stored in dams, treated with chemicals such as chlorine to kill of bacteria and make it safe, and then pumped through a network of pipes throughout the community. It makes sense to catch the rain that falls for free without chemicals.

Main benefits of using rainwater

Significant economic, social and environmental benefits can be achieved by using rainwater. By using Rainwater Harvesting systems to supply water for some, or indeed all of our requirements, you can reduce your dependence on mains water. Our water supplies are falling and water restrictions are in place in many communities to reduce our overall water usage and protect our supplies.

There is no better quality water available naturally than rainwater. Some say there are health benefits to using rainwater which is not treated with chemicals like our mains water is.

Rainwater falls for free - once you have installed a rain harvesting system, you use less mains water and can reduce your water bills. Governments and Water Boards will increase water prices as they look to recover the true costs of providing water to the community.

The cost to the community to supply mains or reticulated water services is becoming more expensive every year. The construction of dams, pipes and treatment plants is huge and ultimately as tax and rate-payers, we foot this cost.

Rainwater Harveting reduces the significant damage to our creeks, water habitats and organisms caused by stormwater runoff.

Some Governments have introduced legislation mandating new standards of energy and water efficiency ratings that must be incorporated into new dwellings. Local administrators have also introduced guidelines for safe water usage systems. Please ask your local authority for those guidelines.
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Stan Abbott of Massey University in Wellington, New Zealand, was commissioned by the New Zealand Government’s Ministry of Health to investigate measures that can be taken to improve the water quality from rainwater harvesting systems.
Abbott concludes from the preliminary results that the quality of the water improves dramatically with the use of first flush water diverters.
These findings reinforce the importance on diverters and screened downpipe rain heads in overall system design.

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