Sustainable Water Supply Guide
Posted by MARTIN PFAFF on
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Every dwelling, domestic and commercial, should have a rainwater harvesting system! Here's a quick overview what is required in terms of material in order to use the water inside the dwelling for flushing toilets, the washing machine and for irrigation. By the way, the Homestar rating system offers up to four points for dwellings which reduce the consumption of potable water in and around the dwelling through the collection and use of rainwater. Apartment developments are also rewarded for incentivizing conservation through individual metering of each dwelling. A water calculator is used to estimate the percentage of household water demand able to be met with rainwater: Standalone and Terraced Dwellings |
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(1) |
The dwelling has a rainwater harvesting system with a minimum connected roof catchment area of 30m2 per dwelling, connected to a tank with a minimum rainwater holding capacity of 500L per dwelling, with at least one connection to a tap for outdoor water use. |
0.5 points |
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The rainwater harvesting system is connected to and can meet all or part of the water use demand from, laundry, outdoor water use, toilets and dishwasher. |
Up to 3.5 points |
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Apartments |
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(2) |
The development has a rainwater harvesting system with a minimum roof catchment area of at least 30% of available roof area, connected to a tank with a minimum rainwater holding capacity of 5000L, with at least one connection to outdoor water use and /or common area water use. |
0.5 point |
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The rainwater system is connected to and can meet all or part of the usage demand from, laundry (common or individual) and / or toilets and / or dish washing in every dwelling where points are claimed. |
Up to 2.5 points |
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Each apartment dwelling has a separate water check meter that enables each apartment to be billed separately for its water use. |
1 point |
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Rainwater Harvesting System 1
(up to 3.5 points for standalone and terraced dwellings)
In-ground or above ground tanks possible (not included in the below mentioned price)
Material required:
- RURAIN filter DN 100 4. Suction hose 1/2” 5 meter
- PLURAFIT calming inlet DN 100 5. Wall bushing DN 100 (if required)
- Floating suction device ½” 6. RAINMASTER Eco10
Tank sized according to requirements and space available. Different shaped tanks and colors available.
RAINMASTER ECO comes with mains water top up connection and switches over to mains water if the water level in the tank reaches a critical low.
Budget Price (supply only): NZ$ 2,425.- + Gst + Freight (tank not included)
Rainwater Harvesting System 2
(up to 3.5 points for standalone and terraced dwellings,
Apartments up to 2.5 points)
In-ground or above ground tanks possible (not included in the below mentioned price)
Material required:
- PURAIN filter DN 100 4. Pressure hose 1” 5 meters
- PLURAFIT calming inlet DN 100 5. Ground bushing DN 100 (if required)
- Submersible Pump set MULTI-05 6. RAINMASTER D24 fill-level indicator
Tank sized according to requirements and space available. Different shaped tanks and colors available.
A drinking water top-up switches on automatically for periods of shortage and supplies the cistern or tank to a set level.
Budget Price (supply only): NZ$ 2,645.- + Gst + Freight (tank not included)
Please note:
This is a guideline only; bigger pumping units might be required, dependable on the size of the house, number of apartments, toilets, washing- and dish washing machines.
Contact: ALOAQUA Ltd, [email protected] www.aloaqua.co.nz
phone: +64 3 26005879
Aloaqua Ltd, "Conditions of Supply and Sale" apply and are available on request.
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- Tags: Emergency water supply, Potable Rainwater, Rainwater, Rainwater filter, rainwater harvesting, Stormwater attenuation, Stormwater retention, Sustainable, Water saving, Water Supply, water treatment