Compost Toilets for families and communities
Clivus Multram makes large capacity compost toilets, with no bins to replace, ever.
Perfect for full-time family use, eco-resorts, schools, national parks, and outdoor adventure clubs, this composting toilet is clean and very user-friendly.
From the optional self-closing white pedestal to the huge-capacity composting chamber, this system is thought out for those who want a normal-looking bathroom, with minimal cleaning out and servicing.
There are no chambers to change-over; just remove some completely composted garden mulch with a spade, a couple of times a year.
Everything gets digested – paper, urine, and solids, with the result being an excellent fertilizer for your garden or fruit trees.
All the Clivus Mutram composting chambers have huge capacity, without great height.
To further reduce the toilet floor height, the compost toilet chamber may be buried up to 400mm in the ground to reduce the height of the bathroom floor above the ground.
This is how it works:

Clivus Multram CM8 – CM40 Larger split systems for groups.

A Clivus Multram CM8 composting toilet tank
The CM8 is ideal for family homes with more than one toilet and small public facilities, especially where two pedestals are required.
Tank Package includes:
- Fully assembled composting tank
- Heavy duty 12 volt fan and 240V transformer
- Vent pipe flashing, fan housing and vent rain cover. (150mm)
- Maintenance tool
- Starter bacteria
- Sealant and screws
- Installation Manual
- Operation & Maintenance Manual
In addition, the following items can also be purchased to complete your waterless composting toilet:
Ventilation & Drain Kit includes:
- PVC Ventilation pipes
- (4.5m) and brackets
- Roof flashing collar
- Liquid drain pipe (1 m)
- Absorption trench arch
Pedestal Package includes:
- Premium toilet pedestal (in white, charcoal grey or black), and quality white seat
- Hold down bolts/screws
- Signs and stickers
- Toilet chute (0.7m) and collar
- Wooden toilet seat can be supplied instead of white seat.
Make up your own customised system using all or any of the above packages
Clivus Multram Operation and Maintenance Manual
Clivus Multram Tanks Installation Manual
Model | No. of persons | H x L x W mm |
CM8 | up to 7 full time | 1100 x 1550 x 1550 |
CM14 | up to 9 full time | 1100 x 2050 x 1500 |
CM20 | up to 13 full time | 1630 x 2390 x 1200 |
CM40 | up to 28 full time | 1780 x 2430 x 1890 |