Below is a photographic view in chronological order of a complete Septic System installation using a type II FAST Treatment Plant which then gravity feeds into the pump chamber and then time dosed under pressure to the distribution box. From there the effluent passes through flow adjusters and on into the Infiltrator Chambers where it is absorbed into the soil.
The reason for using a Type II FAST Treatment Plant is to discharge a cleaner effluent into restricted soil. Two examples of restricted soil would be;
- Seasonally high water tables
- Blocky or platey clay soil.
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