My house in the country has a septic system. Septic systems last an average of 20 years. A properly constructed and maintained system can last longer. A system that is not maintained can fail in 2 years or less.
Regular maintenance protects the investment and avoids replacement costs.
Maintenance also protects the health of your family, the community and the environment. When systems fail, inadequately treated household wastewater is released into the environment. This can contaminate nearby wells, ground water, and drinking water sources. Any contact with untreated human waste can pose significant health risks. Every 3 years have a licensed septic system pumper pump the solids from the tank.