The hidden biological engine beneath your backyard
In short: Discover the sophisticated engineering behind a septic system installation. This video follows the process at the Westerly house, where installer Rick Pezza demonstrates how microorganisms transform waste through a complex biological treatment cycle.
The installation involves burying 1500 gallon primary and secondary tanks into the ground. The system relies on a filtered pump that moves liquid from the second tank to a treatment pod in short cycles.
Inside this pod, liquid drips over filter sheets populated by microorganisms. These organisms perform a vital biological function: converting ammonia into nitrogen gas, which is then released into the atmosphere. The process concludes as oxygenated water returns to the main tank before moving through a sand filtered field.
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Sources
- Summary by Intellect · source: How a Septic System is Installed | This Old House
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