IN A NUTSHELL 🚀 The airplane toilet system relies on pressure differentials to efficiently remove waste without complex machinery. 🔧 The vacuum toilet system patented in 1975 became standard due to its lightweight and reliable design. 🛠️ Some aircraft, like the Lockheed TriStar, had complex systems that posed maintenance challenges. ❄️ Before vacuum systems, chemical … Continue reading “That Terrifying Slurp Sound Saves Your Life”: The Hidden Physics Behind Airplane Toilets That Most Passengers Never Realize