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Which are the most common types of septic systems?
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The most common type of septic system is a drainfield system. This system consists of a series of perforated pipes or trenches that are placed in the ground and connected to a leach field, which is an area where wastewater is allowed to seep into the soil. 2 Another popular option is a septic tank and drainfield system, which combines a septic tank with a drainfield system.3 A third type of septic system is called a package treatment system, which combines a septic tank and a drainfield in one unit. 4 There are also other variations on these systems such as a grease trap, a grease interceptor, and a grease separator.