- Residential Toilet Solutions
- Commercial Toilet Solutions
- Recreational Vehicle (RVs) Toilets
- Camping & Temporary Toilets
- Parts & Accessories
- Consumables By Brand
- Urinals
- Grey Water Technology
- Grease Trap Technology
- Blackwater Technology
- Pump Stations
- Ozone & Hygiene Systems
- Buildings & Facilities
Sustainability
Because we believe in what's best for our planet, place and people
Our Environmental MissionWaterless Composting Toilets NZ Limited
Waterless Composting Toilets New Zealand.
Nature, at its best.
Every day, New Zealanders flush millions of litres of pristine drinking water away — along with valuable nutrients that could enrich our soil — down the drain.
WCTNZ® specialises in practical water, sanitation and wastewater systems — from waterless composting toilets and water-free urinals to greywater reuse, wastewater treatment, grease management, pump stations and public and commercial infrastructure.
We help homeowners, businesses, councils and project teams choose systems that conserve water, recover value where practical, protect downstream infrastructure and keep essential services working where conventional plumbing is unavailable, impractical or simply not the best fit.
What WCTNZ® offers See the WCTNZ® range
Waterless toilets & sanitation
Dry, composting and source-separating systems for homes, baches, off-grid sites and commercial facilities.
- Residential & off-grid toiletsDry and waterless systems for homes, baches and sites with limited wastewater servicing.
- Composting toiletsComplete composting systems for residential, commercial and remote applications.
- Water-free urinalsCommercial waterfree urinals that reduce flushing water and remove flush hardware.
- Urine diversionSource-separation options that reduce liquid loading and support dry toilet performance.
- Venting systemsVentilation components for odour control, drying performance and reliable long-term use.
Greywater & wastewater systems
Systems for household water reuse, treatment, land application, wastewater management and lifting.
- Greywater diversionDivert suitable household greywater to approved reuse or land-application areas.
- Greywater treatmentCollect, treat, pump and manage greywater for reuse or land application.
- Greywater irrigation & land applicationControlled subsurface distribution for suitable irrigation and disposal areas.
- Wastewater treatmentTreatment systems and site solutions where conventional sewer servicing is unavailable.
- Grease managementGrease traps and interceptor systems for fats, oils and grease before they affect drains.
- Pump stationsWastewater lifting solutions where gravity drainage or pipe levels need support.
Public & commercial infrastructure
Facilities and specialist systems for public, commercial, council and remote-site projects.
- Public toilet buildingsDurable facilities for parks, reserves, trails and public spaces.
- Commercial toilet systemsSanitation systems for hospitality, workplaces, tourism and commercial sites.
- Remote site systemsOff-grid options where mains water or sewer access is limited.
- Council & community projectsPublic-facing systems where accessibility, servicing and long-term operation matter.
- Complete wastewater packagesIntegrated treatment, pumping and site-support equipment for more complex projects.
Explore the thinking behind the systems
Marked As New & Specials
Best in Class & Best Sellers
Building Systems
Hygienic & odour-free
Waterless, composting toilets provide low maintenance and eco-friendly solutions for off-grid setups, secondary dwellings and can even replace commercial traditional wastewater systems. Find out which system is right for you with our helpful online guide.
See the Guide
Greywater Products
Water Free Urinals
News Letters
Monthly News: Current affairs in NZ wastewater
Monthly Promotion: Special & one-off deals
Monthly The Humanist: Tips, tricks & advice on composting toilets
Customer Service
My Account
Socials
