Does a composting toilet smell bad?
Absolutely not. Sun-Mar composting toilets are odorless for two reasons. First, sewer gasses are a byproduct of anaerobic composting, which means that the materials being broken down aren’t aerated with ample oxygen. Sun-Mar’s units all use aerobic composting as their method of breaking down waste. Aerobic microbes are very efficient, breaking down waste quickly, and most importantly, they do not put off methane or sulfate gasses in the decomposition process. Second, Sun-Mar systems are designed to maintain a constant airflow through the unit, drawing air up and out through the vent stack. This airflow maintains a partial vacuum in the toilet, which guarantees odorless operation. Want more proof? All of Sun-Mar’s composting toilets are tested and certified by the National Sanitation Foundation, and the NSF will only certify composting units that produce no odor. To check for yourself, see Sun-Mar’s listing on the NSF website. 3.