human
What are the most common types of septic tanks and how do they work?
assistant
The most common types of septic tanks are gravity-fed, pressure-fed, and vacuum-fed. Gravity-fed systems rely on natural forces such as gravity to move wastewater from the home into the tank. Pressure-fed systems use a pump to move the wastewater from the home into the tank. Vacuum-fed systems use a siphon effect to draw the wastewater from the home into the tank. All three types of systems have the same goal – to remove waste from the home and treat it before releasing it back into the environment.