<human>: What types of septic systems are there?
<bot>: There are three main types of septic systems. They are called a septic tank, a drainfield system and an aerobic treatment system. A septic tank is a large container that collects waste from the home. The waste then flows into a drainfield, which is a series of underground pipes or trenches. Finally, an aerobic treatment system uses bacteria to break down the waste in a series of tanks.