Understand the health of your septic system

How often should my septic tank be pumped?

We recommend about every 1-2 years, depending on the condition of the tank and how many people are using it.

What is a septic system?

A septic system is a subsurface sewage disposal system. These feature two components: the septic tank, also known as the treatment tank; and the drainage area, also referred to as the lateral field.

A septic system has a main sewer line that connects all plumping features to the septic tank, and a distribution box that connects the septic tank to the drainage field. The tank is buried approximately 10 to 15 feet from a dwelling.

The main purpose of a septic system is to treat and dispose of waste water generated by occupants of the property. A septic tank can be as efficient as a sanitary sewer if properly installed and maintained.

How does a septic system work?

When the waste water enters the septic tank, the primary stages of treating the water begins. Anaerobic bacteria thrives in the septic tank. Sludge is created as the anaerobic bacteria breaks down the solids.

Grease and soap, which are lighter materials, will float to the top and create a layer of scum. This allows nearly all of the waste water to flow out of the septic tank. The waste water at this point will be void of any soap, solids or grease.

The waste water, which is relatively clear at this point, will exit the septic tank outlet and flow into the distribution box, commonly known as the D-Box. This purpose of the D-Box is to evenly distribute all waste water flow that passes through the drainage field.

Once waste water reaches the drainage field, it passes through perforated lateral pipes, followed by a layer of crushed stone, and then finally through several feet of unsaturated soil. The waste water, which has been fully treated, travels through the soil, completely killing off the bacteria and leaving clear, purified water.

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