1. How Do Septic Tanks Work: What is a Septic Tank?
According to the EPA, any conventional septic system composes of a pipe connecting the house with the septic tank, a septic tank, a drain field, a distribution box, and soil and gravel as the last treatment to remove harmful bacteria from the water.
Septic tanks are usually made of concrete, fiberglass, or polyethylene and have a capacity of around 1000 to 2000 gallons. The job of a septic tank is important to the whole functionality of your septic system.
There are two chambers in the tank, separated by a partial wall. One is larger than the other. All the wastewater and solids that leave your house – bathrooms, kitchen drains, laundry – end up in the large chamber via the inlet baffle on the connecting pipe.
The wastewater inside stays in place until solids have settled in the bottom of the tank to form something known as sludge. Clean water or effluent hangs in the middle. How do septic tanks work rely heavily on the presence of bacteria. They break down the waste from the water.
Oil and grease float to form a top layer known as scum. Once settled, the liquid (effluent) flows through the dividing wall to the second chamber where it receives further treatment. Finally, the water or the effluent leaves the second chamber through the outlet baffle into the drainage field.
Input baffle: You can find it in the first chamber of the septic tank. It allows water to flow into your septic system without disturbing the scum layer. This baffle guides wastewater to flow down, across the septic tank and then up.
Output baffle: It is in the second chamber. It serves as a filter to retain solids from traveling to the leach field.