What are the Three Layers of Your Septic Tank?

It is a good idea for homeowners with a septic system to know what the three layers of their septic system are. Understanding how a septic system works can help you to identify when your system has become too full and needs to be pumped out. 

Bottom Layer – Sludge

The bottom layer of your septic system is made up of a material called sludge. Sludge is comprised of byproducts of the decomposition of other wastes that are dealt with by your septic tank. Heavy materials that sink to the bottom of the septic tank also become part of the sludge.

Middle Layer – Water

The middle layer of the septic tank is water. This water may have small pieces of waste products in it. Water is discharged into the septic field from the tank when your septic system is working correctly.

Top Layer – Scum

Finally, the top layer of the septic system is made up of scum. This comes from things like soap byproducts and cooking oils which go to the top.

You should make sure you watch your septic system to see when it is becoming too full of sludge, so you can get it pumped out and keep it in good working order. Contact the Septic Medic team for help.