Where Everything 7,600 Passengers Flush on Icon of the Seas Goes

7,600 passengers, one of the largest cruise ships ever built, and a question none of them ever ask: where does everything they flush actually go? This is the sealed world below the waterline on Icon of the Seas. How the vacuum toilets work, the maze of pipes, the treatment plant that cleans the waste with bacteria and UV light, where the water ends up in the ocean, and how the ship turns some of its own waste into fuel. If you like these, subscribe here: [your channel link]