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The SUN-MAR Self Contained Toilet

The key to the success lies in its three chamber design. Each of the three chambers;
patented Bio-drum, compost finishing drawer, and evaporation chamber, have their
own independent environments for optimum efficiency. The Self Contained Toilet
electric version has a thermostatically controlled heater and fan assembly to help
evaporate liquid and should be used where there is a constant electrical supply. The
EXCEL NE (non-electric) is for use where there is no continuous electric supply. The
EXCEL NE has no fan or heater. Odorless operation is achieved by a 4” vent which
acts like a chimney creating a partial vacuum within the unit.

The Patented Bio-Drum
Unique to Sun-Mar, the patented bio-drum provides the necessary mass to maintain
good compost and allows easy aeration of the compost by simply turning the drum.
Excess liquid will exit through a screen in the bottom of the drum into the evaporation
chamber. Mixing the Bio-drum is accomplished by rotating the handle in a clock-wise
direction. Compost is removed from the drum by pulling out the white drum lock button
(under the footrest) and rotating the handle in a counter clock-wise direction.

The Compost Finishing Drawer
The compost finishing drawer sits in an opening under the footrest. Compost in the
drawer is isolated from mixing with new waste while resting for 4 weeks so that it can
finish composting.

The Evaporation Chamber
The evaporation chamber is the floor of the
unit under the compost finishing drawer. This
is the area where any excess liquid will gather
for evaporation. A safety drain exits from the
back of the composting toilet which will
drain over-flow liquid that is not evaporated to
an approved facility.

Off Grid And Green
Off Grid And Green


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