The Biology And Operation Of A Septic System
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|The Biology and Operation of a Septic System
Introduction to Septic Systems
The septic system is a grouping of components working together to decompose household waste water. The septic tank holds the waste and breaks the organic compounds into a solid, liquid or gas. The solid waste (called sludge) settles to the bottom of the tank and must periodically be removed. The liquid waste is flushed to the distribution box and is then allowed to drain into the ground through a series of perforated pipes (often called lines or a leach field). Gases follow the same path as liquids and eventually rise through the soil and enter the atmosphere. Tanks can be arranged in series for additional waste treatment. Many older systems have no distribution mechanism.
The Septic Tank Layers or Horizons
Wastewater flows through a pipe into the septic tank. Baffles or "tees" at the inlet and outlet of the tank slows the flow of water and prevents sewage from flowing directly throug...
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