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GreyFlow™
Greywater reuse systems
GreyFlow™ systems for reuse, diversion and pumping
GreyFlow™ helps suitable homes, tiny houses, baches and off-grid sites manage greywater from showers, bathroom basins, laundry and, where the project is designed for it, kitchen wastewater.
The range includes gravity-fed diverters, compact pumped diversion systems, PS-AG manual and automatic units, dripper fields, pump stations, filters, pumps and system accessories.
Lighter greywater
Shower, basin, laundry
Typical GWDD pathway
Kitchen-inclusive
Heavier greywater
Needs more design care
System options
Gravity or pumped
Manual and automatic
Infrastructure
Pump stations
Wastewater lifting options
Why GreyFlow™
The right pathway for greywater reuse
- Reuse suitable shower, bathroom basin and laundry greywater instead of sending it straight to sewer, septic or wastewater treatment.
- Support gardens and landscape areas through dry periods and water restrictions where the site is suitable.
- Reduce demand on mains water and help lower load on sewer, septic and onsite wastewater systems.
- Choose from non-powered gravity diversion, compact pumped diversion, larger PS-AG systems and automatic backflushing options.
- Handle kitchen-inclusive greywater through the correct pathway where grease, food solids and higher organic loading need additional design consideration.
Choose your pathway
GreyFlow™ product groups
Diversion devices
Gravity, EZGREY™ and PS-AG systems for diverting suitable shower, bathroom basin and laundry greywater to a subsurface land-application field.
Kitchen-inclusive projects
Kitchen wastewater is still greywater, but it is heavier and may require grease management, treatment, pumping or a more controlled system pathway.
Dripper fields
Dripper line and expansion kits used to distribute diverted greywater below the surface as part of a complete GWDD pathway.
Pump stations
Underground pump stations, grinder pumps and alarm accessories for wastewater lifting where gravity fall is not available.
Parts and servicing
Replacement filters, pumps, alarm kits and access covers for maintaining and supporting installed GreyFlow™ systems.
System context
Greywater needs the right full pathway
The GreyFlow™ GWDD diversion range includes WaterMark™ certified products and award-winning greywater diversion technology. Pump stations, accessories and replacement parts should be selected according to their own product documentation and project requirements.
In New Zealand, greywater reuse normally requires subsurface land application rather than surface or sprinkler irrigation. Final suitability depends on the greywater source, site levels, soil, land-application area, plumbing layout and local council requirements.
Kitchen wastewater is treated by WCTNZ® as greywater, but it is usually a heavier and more demanding greywater stream because of grease, oils, food solids and higher organic loading. It may require grease management, treatment, pumping or a different system pathway.
Need advice?
Start with the right greywater guidance
Greywater systems are selected project by project. The right pathway depends on the wastewater source, level of use, intended outcome, site levels, soil, available land-application area and local requirements.
WCTNZ® is proud to be the official distributor of GreyFlow™ greywater systems in the Realm of New Zealand, including New Zealand, the Cook Islands, Niue, Tokelau and the Ross Dependency.
GreyFlow™ | GREYFLOW™ GRAVITY (no pump)
GW EZGREY-M1-copy
Non-powered GreyFlow™ greywater filter and diverter for modest shower, bathroom basin and laundry flows where reliable gravity fall is available to a subsurface greywater field.
$1,000.00 excl GST
GreyFlow™ | PRO Filter
GW GFFT-250-Pro
Replacement or spare filter for the GreyFlow™ PRO greywater diversion device.
$99.13 excl GST
GreyFlow™ | PS Filter
GW GFFT-250-PS
Replacement or spare filter for the GreyFlow™ PS greywater diversion device.
$99.13 excl GST
GreyFlow™ | Pump Station 1500W Grinder Pump
GW BIA-B120GS2
Replacement 1500W grinder pump for compatible GreyFlow™ pump stations. Match the pump to the installed pump station model before ordering.
$2,050.36 excl GST
GreyFlow™ | PS-AG-M1 (Manual 100W) - 100mm inlet
GW GFPS-AG-M1
Manual 100W GreyFlow™ PS-AG diversion unit for low-flow residential greywater, suited to 1–3 full-time users and low-head land-application areas.
$1,837.78 excl GST
GreyFlow™ | PS-AG-M3 (Manual 300W) - 100mm inlet
GW GFPS-AG-M3
Manual 300W GreyFlow™ PS-AG diversion unit for medium-flow residential greywater, suited to 2–5 full-time users and moderate-head land-application areas.
$2,044.45 excl GST
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