Sun-Mar™ Troubleshooting Guide
A Practical Guide for when Nature... Clogs.
The Art of Composting
A composting toilet is a simple, biological machine. When things slow down, it’s rarely a hardware failure—it is a signal that the tiny ecosystem inside is slightly out of balance. To keep your microscopic workforce healthy, you must manage these four pillars.
Ventilation
- Drives off moisture and odour.
- Feeds oxygen to aerobic bacteria.
- Ensures continuous airflow.
Moisture
- Keeps bacteria mobile and active.
- Prevents the "swamp" effect.
- Target: A damp, wrung-out sponge.
Carbon
- Use wood shavings or peat moss.
- Creates essential air pockets.
- Neutralizes waste nitrogen.
Waste
- The fuel for the process.
- Introduces starter bacteria.
- Critical nitrogen source.
The drum is filling up too quickly
If the waste level is rising but not breaking down, the biological engine has likely stalled.
Check the Drain
Ensure the safety drain isn't blocked by solid debris. If liquid can't escape, the drum becomes anaerobic and stops composting.
Verify Ventilation
Is the fan humming? Ensure the vent pipe is clear of nests or leaves. Airflow is the only thing preventing a "wet" drum.
The composting process feels non-existent
When the contents remain unchanged for weeks, the microbes are likely dormant.
Balance the Carbon
Add an extra scoop of bulking material. This fluffs the pile and introduces much-needed oxygen to the core of the mass.
Check Temperature
Biological activity drops below 55°F (13°C). Ensure your heater is active or consider insulating the tank if it is located in a cold space.
Getting rid of flies or gnats
Pests are drawn to dry surface layers or stagnant moisture. They cannot survive in a properly active, moist compost pile.
The Solution
Stir a cup of warm water into the top layer to reset moisture. Use a natural pyrethrum spray daily for one week to stop the life cycle. Always top with fresh shavings to seal the surface.
Still Stumped?
We’ve heard it all. If the manual hasn't solved the issue, our off-grid experts are ready to help you get your cabin back to baseline.
Call Technical Support