What is the typical component of a septic system that holds solid waste?

The typical component of a septic system that holds solid waste is the septic tank. The primary function of the septic tank is to receive the wastewater from the household, where it can separate solid waste from liquids. Inside the tank, solids settle to the bottom, forming a sludge layer, while lighter materials, such as fats and oils, float to the top, creating a scum layer. This process allows for the partial breakdown of organic materials through bacterial action.

The septic tank plays a crucial role in treating wastewater before it is sent to the drain field, where further treatment occurs through soil filtration and absorption. Its design and construction ensure that solids are contained and do not enter the distribution box or drain field, which are primarily designed for liquid effluent.

The drain field is responsible for the dispersion and further treatment of liquid effluent, the distribution box manages the flow of wastewater to multiple drain lines, and the grease trap is used to capture grease and large solids from wastewater before it reaches the septic tank. Each of these components serves a unique purpose within the overall septic system, but it is the septic tank that specifically holds and treats solid waste.