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How does a septic tank work?
assistant
A septic tank is a large underground tank that collects wastewater from a home. The tank has a series of compartments, each with its own set of bacteria and other organisms that break down the waste into water and carbon dioxide. This process produces methane gas, which can be collected to use as fuel. The water then flows out of the tank through a pipe system and is treated before being released back into the environment.