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How does a septic system work?
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A septic tank is designed to collect and treat wastewater from a home or building. The tank contains a layer of gravel at the bottom, which acts as a filter for solids in the waste water. As the waste water passes through this filter, bacteria break down the organic matter into smaller particles that can be easily removed by the tank's pump. The treated water then flows out of the tank and into an underground drain field where it is further broken down by soil microorganisms. Finally, the clean water is dispersed into the surrounding ground.