Septic System Brochure: How Does it Work?
A description of the operation of a septic tank.
Septic tanks contain bacteria that grow best in oxygen-poor conditions. These bacteria carry out a portion of the treatment process by converting most solids into liquids and gases. Bacteria that require oxygen thrive in the drainfield and complete the treatment process begun in the septic tank. If the septic tank is working well, the wastewater which flows out of the tank is relatively clear, although it still has an odor and may carry disease organisms. It should flow only into the drainfield. NEVER ONTO THE GROUND SURFACE OR INTO FLORIDA WATERS!!!