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A Detailed Guide to How Septic Tanks Work

Do you ever wonder where and how does all the wastewater flow through the septic systems? Little do we know the things which are working out for us in the background. If you are curious about how this system works, read on.

Your septic tank

All the wastewater from your bathroom and kitchen flows into the septic tanks. These tanks are a huge container installed in a dug up ground. The bacteria inside the tanks help in breaking down the solids. Heavy solids like toilet paper and other solids settle down to the bottom of the septic tank; bacteria further helping in breaking it to sludge and gasses. Solids which are lighter in weight like oils, fats, and proteins float on the top of the layer. However, solids which cannot be broken down by the bacteria remain in the tank. These solids, over time, start accumulating on the bottom of the tank through regular use. The sludge or scum accumulated is then removed when the tank is pumped or cleaned out.

The Drain Field

After passing through the septic tank, the wastewater then flows further to the drain field. The drain field is a kind of wastewater disposal system which was formulated and distribute the wastewater from the septic tanks. The primary function of a drain field is to deal with the wastewater in the septic tank is by letting it flow into the ground. The drain fields which are well-designed and maintained help in eradicating disease-causing microorganisms from the wastewater of septic tank. Although, septic tanks are the most expensive component of septic tanks but they play a very important role. These fields commonly consist of a set of perforated pipes installed in a long, shallow, trenches filled with gravel that are submerged underneath the ground.

Wastewater Treatment

As the wastewater is let into the layers of soil, various processes come together to provide treatment and purification. The natural filters, gravel and soil help in filtering the wastewater. Bacteria also play a role by consuming the organic matter in the wastewater. The microbes present in the wastewater help in killing the bacteria and breaking down the solids. The gravel layer gets further treated by the soil.  You should regularly keep the up to date maintenance of your septic tank, it is important for the drain field too. Some factors like site conditions, the type and texture of the soil, the topography of the area and the volume of wastewater produced are the pillars of support for the size of the drain field and the capacity of the ground to absorb settle wastewater.

For more information on Septic system installation and home sewage system, visit groundstone.ca. This is a septic designing, installing and repairing company specializing in residential wastewater systems.

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