What is the main purpose of a pump chamber in an onsite wastewater system?

The primary function of a pump chamber in an onsite wastewater system is to store and pump effluent to a treatment site. In wastewater management, the pump chamber serves as a critical component that ensures the efficient movement of liquid waste from the initial collection point, such as a septic tank, to the designated treatment area, which may be located at a higher elevation or a considerable distance away.

The design of the pump chamber allows it to accumulate effluent until it reaches a certain level, at which point it activates the pump to transport the wastewater for further treatment. This process is vital for maintaining proper flow and function in the entire wastewater system, as it helps to prevent backups, ensures that the treatment area receives the effluent in a timely manner, and contributes to the overall effectiveness of the onsite wastewater treatment process.

The other options do not accurately describe the role of the pump chamber. For instance, filtering solid waste before treatment is typically managed by the septic tank, while aeration is a process usually conducted in treatment systems rather than in a pump chamber. Additionally, collecting surface runoff is not related to the function of a pump chamber within a wastewater system.