Availability: Special Order, ETA is 3–4 months from date of purchase
Clivus Multrum™ | CM40 Next-Gen
When high-use performance is the priority, the CM40 Next-Gen is the Clivus Multrum™ system built for it.
The largest model in the Clivus Multrum™ range, the CM40 is designed for medium to high-use public facilities such as public restrooms, roadside stops, national parks, visitor centres, beaches, and campsites.
THE NEXT-GENERATION OF CLIVUS MULTRUM™ TECHNOLOGY
"The newest and smartest evolution in the composting toilet market"
Next-Gen is the result of years of development, field experience, and historical performance data, brought together into a more advanced Clivus Multrum™ design. It represents a new generation of composting toilet technology with stronger design efficiency, improved installation capability, and better long-term performance than earlier models.
CAPACITY AND BEST FIT
CM40 Next-Gen – up to 28 people full-time
Ideal for public restrooms, public facilities, roadside stops, national parks, or anywhere a large-capacity composting toilet is needed and water is in short supply, the CM40 is a waterless composting toilet that suits approximately 27–28 people full-time or up to 55 people part-time.
Commercial positioning: The CM40 sits at the top of the Clivus Multrum™ range and is best suited to medium-to-high-use public facilities where long composting retention time, low water demand, and reduced servicing frequency are essential to the project.
KEY ADVANTAGES
- Best waterless composting toilet for commercial settings, with the largest capacity of all Clivus Multrum continuous tank solutions
- Easy-to-move access door for more efficient maintenance and cleaning
- Set-and-forget continuous style composting with minimal ongoing maintenance required
- Passive ventilation to assist the fan, prevent back-drafts, and provide redundancy
- Stainless steel baffle separates the composting pile from the access door so you only handle composted material – you never handle raw waste
- Requires a 1400mm minimum underfloor clearance when partially buried
- Sloped sides increase compost volume and reduce unusable corner space
- Excellent high-usage alternative to sewerage
- The new shape reduces the likelihood of blockage of the drainage system
- Maintenance window to access the composting pile when required, such as retrieving foreign material, adding extra bulking agent, or levelling the pile
PACKAGE INCLUDES
A CM40 Next-Gen tank package comes with everything you need:
- Fully assembled composting tank
- Your option of pedestal types
- Pedestal waste chute (550mm in length; 245mm in diameter) and dektite
- 100mm ventilation system (fan-housing), mozzie stoppa, and drain kit
- Wind powered ventilator (your choice of SharkVent™ or Wind-Driven Vent)
- Starter pack (125ml Nature Flush Enzymes Concentrate & spray bottle, Microbiota MicrobeBURST™ Composting Additive, bulking agent)
- Installation kit and maintenance tool
- Installation, operation, and maintenance manual
All the Clivus Multrum™ systems from the 8 to the 40 can be specified with high-quality pedestal options, helping the bathroom finish remain strong, functional, and appropriate for both residential and commercial settings.
CERTIFICATION
Certification
Australian & New Zealand Standard 1546
SAI Global certified
Licence Number: SMKH25591
Clivus Multrum™ composting toilet systems are certified against the AS/NZS 1546.2:2008 On-site domestic wastewater treatment units – Waterless composting toilets standard.
WCTNZ® is the exclusive authorised distributor of Clivus Multrum™ composting toilets in New Zealand. All Clivus Multrum™ products available through WCTNZ® are guaranteed authentic, include official manufacturer warranties, and come with comprehensive local customer support—making us New Zealand’s trusted source for sustainable, waterless composting toilet solutions.
