Airvac Vacuum Sewer System
How do vacuum sewer systems work?
Instead of relying on gravity and deep underground pipes, vacuum sewer systems use:
- Small-diameter shallow pipes
- Vacuum stations
- Vacuum valves and collection pits
Wastewater is pulled through the system by differential air pressure toward a central vacuum station.
Where are these systems commonly used?
Airvac systems are often used in:
- Flat terrain areas
- High groundwater table locations
- Coastal communities
- Environmentally sensitive areas
- Areas with rocky or difficult soil conditions
- Septic-to-sewer conversion projects
- Rural or low-density developments
What are the benefits of Vacuum Sewer Technology?

Compared to conventional gravity sewer systems, vacuum systems can offer:
- Less excavation and lower installation depth
- Reduced infiltration and inflow
- Lower risk of sewage leaks into groundwater
- Flexibility around obstacles and utilities
- Potentially lower construction costs in certain environments
