What is a septic tank? How is it used? How it works?
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Septic tanks work by allowing waste to separate into three layers: solids, effluent and scum (see illustration above). The solids settle to the bottom, where microorganisms decompose them. ... The middle layer of effluent exits the tank and travels through underground perforated pipes into the drainage field.
· Septic systems are underground wastewater treatment structures, commonly used in rural areas without centralized ...The septic tank is a buried, water-tight container usually made of concrete, fiberglass, or polyethylene. Its job is to hold the wastewater long enough to allow solids to settle down to the bottom forming sludge, while the oil and grease floats to the top as scum.
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