By D. A. (Midwested) on Wednesday, July 15, 2026 - 03:19 am:
Those streams of water exiting both sides of the ship is water used for cooling mechanical systems like the engine, gear boxes and other hydraulic systems. Since 1972, Great Lakes ships are no longer allowed to pump out bilge or gray water into the lakes. Ocean going ships are exempt from these rules and can even dump black water, as long as they are greater than 3 miles out.
By Kathyrn Laughlin (Kathyl) on Wednesday, July 15, 2026 - 09:06 am:
Hi
D.A., thanks for the explanation.