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    Grey Flow Dripper Line Coil Grey Flow Dripper Line Expansion Kit Dripper line in garden GreyFlow Flush Valve Kit X2 valves Box

    GreyFlow™ Dripper Line Expansion Kit

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    Brand: GreyFlow™
    SKU: GW-GFDL-EK
    Add-on GreyFlow™ dripper line expansion kit for extending compatible subsurface greywater irrigation fields from Grey Water Diversion Devices.

    Choose the Product options below

    For all Dripper Feilds, you require flush valves for yearly maintenance.

    Availability: In stock
    $204.35 excl GST
    excluding shipping
    Estimated delivery time: Approx. 1 week (NZ-wide)
    i h
    Products
    Greywater land-application component

    GreyFlow™ Dripper Line Expansion Kit

    A greywater dripper-line product designed for subsurface greywater irrigation from Grey Water Diversion Devices.

    GreyFlow™ dripper-line technology is designed to distribute suitable diverted greywater below the surface. It is used where a GWDD system needs to apply the same greywater volume over a larger or extended land-application area.

    Drip rate
    8 L/h
    Per outlet
    Spacing
    30cm
    Drip spacing
    Install
    Subsurface
    Sub-strata field
    Use
    GWDD
    Greywater diversion
    Greywater field component

    Purpose-built for GWDD land application

    • Designed for greywater irrigation using Grey Water Diversion Devices.
    • Supports subsurface installation to distribute greywater below the surface.
    • Useful where the discharge area needs to be extended or spread over a larger field.
    • Helps complete the greywater pathway after the diversion/filtering unit.
    Compatibility

    Use with the right greywater pathway

    Compatible pathway
    GWDD — Grey Water Diversion Devices.
    Not compatible with
    DGTS — Domestic Greywater Treatment Systems. Use the correct DGTS discharge field pathway instead.
    Installation type
    Sub-strata / subsurface installation.
    Typical use
    Expansion or field-distribution component for suitable GreyFlow™ dripper systems.
    Basic specifications

    Core product details

    Product type
    Greywater dripper line expansion kit.
    Drip rate
    8 litres / hour.
    Drip spacing
    30cm drip spacing.
    Installation
    For sub-strata installations.
    Use case
    Expanding or configuring a subsurface greywater irrigation field.
    Installation diagram

    Example layout

    Dripper Line Installation Diagram
    Important compatibility note

    GWDD and DGTS are different pathways

    This dripper line is designed for GWDD greywater diversion systems and is not compatible with DGTS domestic greywater treatment system discharge fields. Refer to DGTS Discharge Field Systems for the correct treated-greywater discharge pathway.
    WCTNZ® support

    Greywater field guidance

    WCTNZ® supplies GreyFlow™ greywater products in New Zealand with product guidance, documentation support and practical advice for matching diversion devices to suitable land-application fields.

    Copyright © 2025 Waterless Composting Toilets NZ Limited (WCTNZ®). All short and long product descriptions and content are the property of WCTNZ® | Waterless Composting Toilets NZ. All rights reserved.
    This content has been reviewed and approved by Dylan Timney, Managing Director of WCTNZ®, who brings over 17 years of composting toilet expertise and 16 years of experience in building and eco-construction in New Zealand.
    Last reviewed: June 26, 2025

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