Water conservation in the Rotorua NOW Home®
Using less water
The Rotorua NOW Home® uses 6/3 litre dual flush toilets and low flow tap and shower fittings. The low flow shower mixers restrict water flow to 9 litres per minute, compared to standard showerheads which can use up to 20 litres per minute.
Tenants supply their own washing machine in the Rotorua NOW Home®. No dishwasher is provided.
Using free water
Rainwater is collected from the butterfly roof using a single wide gutter and 150mm downpipes to cope with the greater volume of water being collected at a single point.
Rainwater is harvested into an underground tank to save space, resolve any issues with requirements for setbacks from boundaries, and for aesthetics.
The system includes a 4000 litre underground tank, submersible pump and a controller with automatic changeover and backflow prevention. The controller automatically reverts to mains supply when the water in the tank is low.
Water from the rainwater tank feeds the garden taps, toilets and laundry. Unlike the Waitakere NOW Home®, it does not feed the solar hot water system, and so a smaller tank has been used.
Reducing the effects of stormwater
Collecting rainwater from the roof into the tank reduces the chance of flooding stormwater drains.
Additionally the landscaping maximised permeable surfaces, with grass, garden and chip. Concreted areas were as small as possible, reducing run-off to a minimum.
- The layout and design of the Rotorua NOW Home®
- Energy efficiency in the Rotorua NOW Home®
- Healthy living indoors in the Rotorua NOW Home®
- Water conservation in the Rotorua NOW Home®
- Waste management in the Rotorua NOW Home®
- The Rotorua neighbourhood