<human>: What are the benefits of a septic system versus a conventional system?
<bot>: The main benefit of using a septic system over a conventional sewer is that it uses natural processes to treat wastewater. This means that there is no risk of pollution entering waterways, which is important for maintaining a healthy ecosystem. Additionally, septic systems are generally more affordable than conventional sewer systems, since they require less maintenance and do not need expensive infrastructure. Finally, septic systems can be designed to provide additional features such as greywater treatment and energy recovery.