How Much Does a Septic Tank System Cost? (2024)
$1,000 – $1,500 : Total replacement cost : $3,500 – $8,500 : A septic tank is a large, underground container that treats wastewater from homes that are not connected to a municipal sewer system. The septic tank collects the waste, then gravity separates the waste into scum, sludge, and effluent. Bacteria in the tank breaks down the solid ...