The bio-digester is a modern system that eradicates the septic tank / manhole system
It's a small enclosed concrete chamber that treat human waste through aerobic decomposition which acted upon by some bacteria and other organisms generated by the application of some natural and chemical substances. It also act as a filter by separating the human waste from the flush water allowing non toxic and odorless water to drain out. It's end result is environmental friendly and hygenic
*Some major benefits of this system includes*
No human waste evacuation
little or less space required
No offensive smell
No flies / cockroaches
No ground water contamination
It doesn't get filled up
It is durable
it is suitable for both dryland and waterlogged area