How Septic Tanks Work

Septic tanks are an essential part of many homes but often go unnoticed. Most homeowners only think about them when they start to back up or need to be pumped. However, septic tanks are a fascinating piece of engineering and play an important role in wastewater treatment. In this post, The Plumbing Doc, trusted plumber in Bakersfield, CA, will explain how septic tanks work:

Settling

The process of settling is the first step in a septic tank’s operation. Incoming wastewater enters the tank and flows down to a section called the baffle wall. This specially designed wall prevents large particles from leaving the tank and entering other parts of the system. Those heavier particles will settle at the bottom, allowing only lighter materials to pass into the second chamber. Contact a plumbing company if there is a need to adjust the baffle wall.

Bacterial Breakdown

As wastewater enters the second chamber, anaerobic bacteria break down solids and other materials. This process allows a more accessible release of liquids from the tank and into the drain field. Proper maintenance is necessary to avoid emergency plumbing issues.

Filtering

In this chamber, wastewater undergoes its last level of quality control before being released into the soil. There are two main ways this process occurs: with a filter bed or a settling zone. In a filter bed, wastewater passes through a layer of gravel, while in a settling zone, it passes through sediment.

Both methods effectively remove solid particles and other elements that could cause contamination when released into the soil. Most companies offering plumbing repairs offer filter bed installation services.

Floatable Scum Removal

Once the wastewater has been filtered, it is sent to the fourth chamber, where floatable scum is removed. This includes oils, fats, and other materials that are lighter than water and can accumulate in the tank over time.

Once floatable scum is removed, only clean water remains, which can be released into the drain field. When doing plumbing services, it is vital to check on the floatable scum to ensure no blockages occur.

The septic tank is vital to any home’s wastewater treatment system. Understanding how it works is critical for keeping your septic tank functioning effectively and safely. With proper care, a septic tank can last many years.

The Plumbing Doc can help with any questions about septic tanks. We offer general plumbing, sewer repair, trenchless pipe lining, and hydro jetting around Bakersfield, CA, and nearby areas. Contact us today to schedule an appointment.