What is the function of a distribution box in an On-Site Sewage Facility (OSSF)?

The function of a distribution box in an On-Site Sewage Facility (OSSF) is to evenly distribute effluent to multiple drain lines or trenches. This distribution is essential for ensuring that the effluent is spread out uniformly across the soil absorption area. By providing an equal flow to each drain line or trench, the distribution box helps to prevent overloading any single line, which could lead to premature failure of the system or inefficient treatment of effluent. Proper distribution is crucial because it ensures effective soil absorption and helps maintain the overall health of the on-site treatment system. This design promotes optimal treatment and minimizes the risk of surface discharge or odors. Other functions, such as collecting effluent or filtering solid waste, are addressed by different components of the sewage treatment system, which shows the specific role of the distribution box in maintaining balance within the OSSF.