Buried beneath your back yard, it is out there—constantly working. When you’re at work, it is working. When you’re eating dinner, it continues working. And when you’re sleeping, it’s still out there in the dark—working. What is it? Your septic system. It may be the most overlooked and undervalued utility in your home; but with proper care and maintenance, your septic system can continue to work for you for at least 25 to 30 years.
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There are two main parts to the basic septic system: the septic tank and the leachfield/drainfield. Household wastewater first flows into the septic tank where it should stay for at least a day.
In the tank, heavy solids in the wastewater settle to the bottom forming a layer of sludge, and grease and light solids float to the top forming a layer of scum.
The separated wastewater in the middle layer of the tank is pushed out into the leachfield as more wastewater enters the septic tank from the house.