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Trench Percolation Areas

Trench percolation areas are a conventional method of disposing to ground, effluent from Secondary mechanical treatment systems . The method is also used as final treatment of effluent from a conventional septic tank wheretreatment tales place through interaction with the soil. The wastewater leaves the system by gravity (suited to dwellings with slope away site only) to the distribution box where it is evenly distributed into up to 5 percolationtrenches.

The effluent then percolates out of the orifices in the percolation pipes into a gravel underlay, which acts both as a medium for treatment and distribution. Location and invert level of the pipework should always be determined from results of a percolation test and site assessment and designed as per Section 7 Epa Code Of Practice 2009.

  • Conventional Ground Disposa

    Trench percolation areas are a traditional method for disposing of effluent from secondary mechanical treatment systems directly into the ground.

  • Final Treatment for Septic Tank Effluent

    This method is also utilized as the final treatment step for effluent from a conventional septic tank. The treatment primarily occurs through interaction with the natural soil.

  • Gravity-Driven System

    In this system, wastewater flows out of the treatment system by gravity. This method is best suited for dwellings situated on sloping sites where gravity can facilitate the movement of effluent.

  • Distribution Box for Even Dispersion

    Effluent is collected in a distribution box where it is evenly distributed into up to five percolation trenches. This ensures uniform distribution for effective treatment

  • Interaction with Soil

    The primary mechanism of treatment in trench percolation areas is the interaction between the effluent and the natural soil. The soil acts as a filter and absorptive medium.

  • Space Requirements:

    Trench percolation areas require a larger footprint compared to alternative disposal methods like soil polishing filters.

Tuf Tite Distribution Boxes with Adjustable weir outlet system to ensure Even distribution to each trench

Frequently Asked Questions

1. What area do TPW Systems cover ?

The Percolation Area is a designated space where treated effluent is evenly distributed over a specific area of soil. This allows for the final stage of natural filtration before the water returns to the environment.

2. How much does the typical septic tank upgrade cost

The Percolation Area is a designated space where treated effluent is evenly distributed over a specific area of soil. This allows for the final stage of natural filtration before the water returns to the environment.

3. Do TPW Systems do a site visit?

The Percolation Area is a designated space where treated effluent is evenly distributed over a specific area of soil. This allows for the final stage of natural filtration before the water returns to the environment.

4. How long does the process take to upgrade a septic tank ?

The Percolation Area is a designated space where treated effluent is evenly distributed over a specific area of soil. This allows for the final stage of natural filtration before the water returns to the environment.

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