The line labeled "C", as shown in the illustration would be identified as the ______. GS-0175

Correct Answer: Option B — clean water flushing line

Clean water flushing lines are essential for maintaining the operational efficiency of oily-water separators. By introducing clean water, the system can purge residual sludge or oil buildup from internal chambers and sensors, ensuring the unit remains compliant with 46 CFR Subchapter F requirements for reliable pollution prevention equipment operation.