Friday, December 23, 2016

The Basics Of Septic Design Texas

By Dorothy Price


A septic system is a self-contained, high efficient, wastewater treatment system that is located underground. Unlike the sewer systems, it treats and disposes wastewater from households onsite. For this reason, it is more economical to use. The system is also inexpensive to maintain and install. Furthermore, because its installation does not require a lot of space, it is environmental friendly. Outlined below are the four common types of septic design Texas.

The older types of septic systems are built using traditional gravity. In a conventional gravity system, the drainfield is made up of perforated pipes, each measuring 4 inches in diameter. The pipes are laid in trenches that are filled with gravel. While digging the trenches, you are supposed to ensure that they are located 3 feet above any layer. Such a restricting layer may be a water table or a hardpan.

As the effluent flows through the many pore spaces, it undergoes filtration. While the discharge moves through the soil, it is treated via numerous chemical and biological procedures. These processes ensure that the wastewater is free of impurities before it mixes with the underground water. It is important for the soil to be dry, permeable and oxygenated for the treatment to be a success.

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.

The effluent from the septic tank is pumped in controlled portions to make sure that there is a uniform distribution. The effluent is treated as it moves through the particles of sand. It is then collected by an underground underdrain which either moves it to a second chamber for discharge or into a drain field that is pressurized.

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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