Composting toilets use natural processes of decomposition and evaporation to recycle human wastes. They are quick to install, easy to use, and require no water or sewer lines. Waste entering the toilet is over 90% water; this is evaporated, and then carried back to the atmosphere through a vent system. The small amount of remaining material is converted back to fertilizing soil by natural decomposition. By recycling in this way, no septic systems, no holding tanks, and no chemicals are needed to treat wastes. Suddenly, human wastes become valuable resources rather than a source of pollutants and undesirable nutrients in groundwater. All "Sun-Mar" units carry a comprehensive 3-year parts warranty, with a full 25-year replacement warranty on the fiberglass body.  shipping information
 
Self-Contained Units
Excel NE Non-electric, high capacity. $ 1249
Excel Electric, high capacity. $ 1449
Compact Electric, medium capacity. $ 1349
Central Composting Toilet Systems
Sun-Mar Centrex NE Series Non-electric, high capacity. For use with 1-pint toilet. $ 1249 - 1699
Sun-Mar Centrex Series Electric, high capacity. For use with 1-pint toilet. $ 1449 - 1849
Other models available call for details