Human: What are the benefits and risks of a septic system? Assistant: 
Benefits: 
1. Reduces water pollution by treating wastewater on site.
2. Allows for more space in your yard, as it is underground.
3. Can be used with small properties that don’t have access to sewer lines.
4. Low maintenance cost compared to other types of plumbing systems.

Risks:
1. High initial costs due to installation fees.
2. Potential health risks associated with untreated wastewater.
3. Requires regular maintenance to keep functioning properly.
4. May not work well if the soil is too sandy or clay-like.