What are Vacuum Toilets?
Vacuum toilets are toilets which employ a vacuum for flushing, rather than gravity alone. There are a number of different types of vacuum toilets, ranging from toilets connected to vacuum sewer systems to toilets with a vacuum assist, which creates pressure to help flush the contents of a toilet with minimal water usage. Anyone who has flown on a plane is probably familiar with the vacuum toilet, and these toilets also appear on boats and in personal homes. The way in which a vacuum toilet works is pretty simple. The toilet is hooked into a vacuum sewer system, which may consist of a single sewage tank or a series of sewer lines. When someone uses the toilet and flushes it, the flushing action opens a valve in the toilet, and the vacuum sucks the contents of the toilet out for treatment. Because the vacuum involved is extremely powerful, a vacuum toilet requires little to no water. Some use sanitizing liquids instead of water to keep the toilet relatively clean. Vacuum toilets are ofte
