Types Of 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.

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.

The discharge is thoroughly filtered by the soil as it navigates through the numerous pore spaces. It is also treated through a combination of various biological and physical processes. The main objective of the treatment is to see to it that the wastewater is clean before it mixes with the water below the soil surface. An oxygenated, dry and permeable soil is additionally important for effective treatment.

Secondly, the pressure distribution drainfield is another common septic design system in Texas. This one, unlike the former, is most preferred in the specific areas that lack the right amount of space for the installation of the gravity model. It has a pump whose primary role is to distribute the effluent on the drainfield.

The system, moreover, has an additional series of pressurized lines. The lines connect the pump tank to the drainage field. The necessity of this is to see to it that all the effluent is pumped to the drainfield at the same time. Pressure systems have numerous layout designs as compared to the gravity systems. When laying out your designs, therefore, you should conduct a research to find out which type of layout best works for you.

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.

In this model, the wastewater is pumped in a controlled manner to facilitate a homogenous distribution. An underdrain then collects the wastewater as paves its way through the particles of sand. The resultant effluent can either be moved to a second compartment for discharge or be released into the drainfield.

For any site that is a mound and lacks an adequate soil depth, a mound system works best. A mound, in this case, is a type of drainfield that is elevated above the soil surface. It is also filled with a particular type of sand. Unlike the previous model, this one has gravel embedded in the sand and also in the pressurized pipes. The treatment of the effluent occurs as it moves through the sand particles into the surface soil.




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