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What is a septic system?
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A septic tank is a water-treatment device that removes waste from the home. It consists of a tank and a drain field, which are usually located in the backyard or on the side of the house. The tank collects wastewater from the home's plumbing system and allows it to decompose naturally. The drain field is a network of pipes that carry the wastewater to the soil where it can be absorbed into the ground.