We understand that composting toilets must excel in three distinct processes: rapid and odourless composting, safe and easy handling of the finished compost, and efficient liquid management. This is why our systems are engineered to achieve these goals to perfection.

At the heart of Sun-Mar™ success is our unique Three-Chamber System design, consisting of the Bio-drum™, a Finishing Drawer, and an Evaporation Chamber. By staging the composting process, this extraordinary design creates the ideal composting environment at every stage.

The Bio-drum™ combines warmth, moisture, organic material, and oxygen to facilitate swift and efficient breakdown of waste by aerobic microbes. Excess liquid is automatically drained through a specialized screen into the Evaporation Chamber, ensuring optimal composting speeds. The rotating Bio-drum™ ensures even mixing and oxygenation throughout the compost pile – this thorough aeration is key to odourless, rapid waste decomposition. Once the compost has matured in the Finishing Tray, it is ready for reintegration into the environment.

Sun-Mar™ systems come in both self-contained (on-floor) and split-system designs, making sure there is a toilet for every application – whether it be an RV, a tiny home, a residential house or a bigger commercial operation.

Thanks to our state-of-the-art technologies, Sun-Mar™ is recognized as a leader in composting toilets, and holds a reputation for quality, reliability, and sustainability. Our systems are used by homeowners, businesses, and organizations around the world, who appreciate our commitment to creating a healthier planet.