The Common Septic Design Texas

By Dorothy Price


Septic systems are underground wastewater treatment devices. They are usually highly efficient and self-contained hence making them easy to use. They differ from the sewer systems in that the wastewater is treated on site. A majority of people prefer to use them as they are not only easy to maintain but also pocket friendly. Installing them also needs limited space. The following are, therefore, the different septic design Texas.

First, the gravity system is one of the most popular and ancient designs in Texas. It has an elaborate drainfield that has pipes which are four inches wide. It is important to note that the pipes are supposed to be perforated and placed in trenches. The trenches are usually filled with gravity and have to be maintained three feet above any layer such as a water table.

The effluent is filtered by the soil that is below the drainlines as it makes its way through the numerous pore spaces. As the effluent percolates through the soil, moreover, it is treated by biological and chemical processes. The treatment, therefore, cleans up the wastewater before it mixes up with groundwater. For the system to work efficiently, the soil has to be dry, aerated, permeable and deep enough for the cleaning process to be completed.

Another common septic design in Texas is the pressure distribution drainfield. The system is often used as an alternative to the former in cases where the soil depth is insufficient for the installation of a gravity drainfield. The pressure distribution system is always fitted with a pump. The pump discharges the effluent into the drainfield.

This design is, moreover, composed of several pressurized lines which offer a link between the pump and the drainfield. The main advantage of this connection is ensuring that all wastewater is discharged at the same time. The other advantage of this system is that there are additional layout designs to select from. While determining the right layout for your site, therefore, it is important to consider all the available options.

In cases where the amount of soil is not sufficient to support the other two types of drainage systems, a sand filter system is the best alternative. In this case, a container that is filled with sand is placed in the midst of the pump tank and the pressurized drainfield. The sand is used to treat the effluent which consequently moves to the shallow soils on the surface. The sand filter can be made of different materials including concrete.

To maintain a uniform distribution of the effluent, it is pumped in controlled measures. While it moves through the sand particles, the wastewater is collected by an underdrain. It is then transferred to another chamber for discharge purposes or moved into a drainfield that has been subjected to pressure.

The mound system, unlike the rest, is used in a site that has insufficient soil depth and is a mound. A mound is simply a drainfield that is slightly raised above the surface of the soil. It is, further, filled with a specific sand material. A gravel field is additionally situated within the sand and also in the network of pressurized pipes. The effluent is treated as it moves through the sand into the soil on the ground.




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