In The Beginning...
1971, Hardy Sundberg developed the world's first self-contained
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 develped
his third generation toilet which incorporated a rotating drum as
the composting chamber. This was a three chamber design which used
separate chambers for composting, evaporating, and compost finishing.
Now the environment for each function could be optimized individually.
keeping with the family tradition, a Sundberg still leads our research
and development effort. Sun-Mar remains the world leader in composting
toilets, and dominates the North American market with its unparalleled
range of 22 models from 6 different product families. Each model
is designed to fill a specific need, and each is distinguished by
innovative design, superior technology, and Sun-Mar's legendary
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, our many international patents
ensure that only Sun-Mar can take full advantage of the benefits
a drum offers for mixing and aeration.
If you still have questions after reviewing this site, we encourage
you to phone our toll free number or e-mail
us to discuss your particular situation. At Sun-Mar we pride
ourselves on our friendly and helpful attitude with customers and
our outstanding after-sales service. We invite you to join the extended
worldwide family of Sun-Mar owners.