Inside the tank, the heavier materials ... There are pros and cons to each type of septic tank material. Concrete tanks are durable and can last decades, as they are resistant to buoyancy in ...

Meanwhile, inside the tank ... and 6 feet tall. Septic tanks could be made of concrete, fiberglass, polyethylene (plastic), or steel. Capacities vary, but the average home septic tank is 1,250 ...