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How a Septic Tank System Works

Septic tank systems Septic tanks are classic ‘bio-digestors’ that rely on anaerobic bacteria to break down human sewage wastes over a period of (at least) 21 days. Septic systems are used to treat sewage from (usually) single dwellings in districts where municipal Wastewater Treatment Works are not available. Larger systems are also used by rural […]

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