For our salt water boaters. First total disassembly of my heat exchangers and after coolers. Twin CUMMINS QSC 600s, 750 hours. Fresh water flushing has been done since new when the boat was to sit for > 5 days. Mains and gen set are flushed with dock side fresh water for 10 - 15 minutes with sea cocks closed. How do you do this? The lids of the sea cocks are tapped and a marine t-valves with 5/8" hose adapters. The photo speaks for itself. Tell Carlton we say hello from NC.
