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    GreyFlow™

    WCTNZ® is proud to be the official distributor of GreyFlow™ composting toilets in the Realm of New Zealand (New Zealand, the Cook Islands, Niue, Tokelau and the Ross Dependency)

     

    GREYFLOW™ World Leading Greywater Diversion Technology. Reduces water bills, uses fewer water resources, irrigates your garden during water restrictions, and decreases demand on energy for sewage transport.

    GreyFlow™ sets the standard in greywater diversion. Reuse shower and laundry water via compliant GreyFlow™ systems so you save water, keep gardens thriving through water restriction periods, and reduce network/onsite system load.

    The GreyFlow™ GWDD range is WaterMark™ certified and award-winning (2018 Australian Water Association).

     

    Cut mains water use & bills

    Keep gardens alive in restrictions

    Lower load on sewers/onsite systems

    Reliable, low-maintenance filtration & pumping

    ✓ WaterMark™ Certified

     

    Say yes to greywater done right

     

    Notes: Greywater systems are a great way to save water. In New Zealand, the compliant method is subsurface land application (below ground)—not surface/sprinkler irrigation—so you can reuse greywater safely and within council rules.


    WCTNZ® | Waterless Composting Toilets NZ Limited | Copyright 2025 ©

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    GreyFlow™ Dripper Line 100 Meter Coil

    GW GFDL 100
    Additional Dripper Line for expansion of the GreyFlow™ Dripper Kits. This expansion coil of dipper line is used when the irrigation field needs to discharge the same volume of greywater over a larger area.
    $160.87 excl GST

    GreyFlow™ Dripper Line Expansion Kit

    GW-GFDL-EK
    This is an add-on kit to the GreyFlow™ Dripper Line Complete Kit. This expansion coil of dipper line is use when the irrigation field needs to discharge a larger volume of greywater.
    $204.35 excl GST

    GreyFlow™ | Class C Trafficable Access Cover (600mm)

    GW GFT-RC
    The GreyFlow™ In-ground tank & access cover options - for GreyFlow™ PRO and GreyFlow™ Pump Stations.
    $930.03 excl GST

    GreyFlow™ | High level Audio & Visual Alarm Kit

    GW WF-ALARM
    Optional audio-visual high-level alarm kit for GreyFlow™ and other small pump stations. Provides an immediate warning of rising liquid level or pump failure, ideal for below-ground pits, basements and remote sumps.
    $723.36 excl GST

    GreyFlow™ | Non Trafficable Access Cover (600mm)

    GW GFNT-RC
    The GreyFlow™ In-ground tank & access cover options - for GreyFlow™ PRO and GreyFlow™ Pump Stations.
    $361.68 excl GST

    GreyFlow™ | Pedestrian Trafficable Access Cover (600mm)

    GW GFPS-RC
    The GreyFlow™ In-ground tank & access cover options - for GreyFlow™ PRO and GreyFlow™ Pump Stations.
    $413.35 excl GST