Sun-Mar™

WCTNZ® is proud to be the official distributor of Sun-Mar™ composting toilets in the Realm of New Zealand (New Zealand, the Cook Islands, Niue, Tokelau and the Ross Dependency)

In 1971, Hardy Sundberg of Sun-Mar™ developed the world’s first self-contained composting toilet.

For the first time, a self-contained toilet could be put in a bathroom and would evaporate liquids and compost solids.

The next big technical breakthrough came in 1979 when Hardy developed his third-generation toilet, which incorporated a rotating drum as the composting chamber. This was a three-chamber design that used separate chambers for composting, evaporating, and compost finishing. Now the environment for each function could be optimised individually.

In keeping with the family tradition, a Sundberg still leads Sun-Mar’s™ research and development effort. Sun-Mar™ remains the world leader in composting toilets. Each model is designed to fill a specific need, and each is distinguished by innovative design, superior technology, and Sun-Mar’s legendary quality.

The way a Sun-Mar™ works is not only unique, it is also elegantly simple. Common sense tells us that the best way to compost is to use a drum. Luckily for Sun-Mar™, its many international patents ensure that only Sun-Mar™ can take full advantage of the benefits a drum offers for mixing and aeration.

Sun-Mar™ Composting Toilet Systems are certified against the "AS/NZS 1546.2:2008 On-site domestic wastewater treatment units – Waterless composting toilets" standards.

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