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

Correct Answer: Option B — clean water inlet line

Line C is identified as the clean water inlet line. This connection provides a source of clean water used for backflushing the coalescer elements or for filling the separator chamber during initial startup, ensuring the system is primed and free of contaminants before beginning the bilge water processing cycle.