Understanding Your Septic System

It’s important to know what type of septic system you have and how to keep it healthy. To find out what type of system you have, search for your as-built records here.

If you are on a septic system, you know how important it is to keep your family and your environment safe. Most homeowners know on-site septic systems treat sewage from homes. But how septic systems work can be a bit of a mystery. It can be hard to wrap your mind around something that’s invisible!

How can you see one without digging it up? Enter interactive 3-D models of septic systems. Open one of the models below and you’ll be able to explore the mysteries of an entire septic system—from toilet to drainfield.

Look for your septic system type below. Press play to load the 3-D model, and use the two arrows in the bottom right corner to expand to full screen for better visibility. Click on the question mark in the lower right for help with controls. Please note: There are more types of septic systems than what is shown below, but these are the common ones in our area.

Gravity Septic System

Pressure Distribution Septic System

Mound Septic System

Sand-lined Bed System 

Sand Filter Septic system

ATU System with Drip Field

Still have questions?

Get technical assistance! Email SHD-EHQ@snoco.org.