The Santerra Green Z Series 12-volt DC Electric composting toilet system consists of an attractive ceramic low-flush toilet in the bathroom and a remote composting unit below the toilet. Unlike the Y Series from Santerra Green, the composting unit for the Z Series does not have to be directly below the bathroom (though a gravity drop is required for the flush). The included ceramic low-flush toilet uses just ½ liter of water per flush, and the entire system can support 2 additional low-flush toilets for a total of 3. Santerra Green's patented Automatic Six-Way Aeration™ system draws air through the toilet seat area on each toilet, keeping things odor-free without the need to turn the composter's drum manually. White.
Installation can usually be completed in just a few hours. During installation, be sure not to install any 90° bends in the vent stack. When use begins, simply add ½ cup of daily mix or similar additive per user per day to promote the natural composting process, and the system does the rest! The system will need to be emptied 1-2 times per year under normal use (see left for recommended user limits for the Z Series DC Electric model under full-time and part-time use). Single-ply or biodegradable toilet paper is recommended. Finished compost can be added to a non-food garden or buried.