By Utibe Inyang
Since water could not sit in a bowl on a plane without spillage, aircraft lavatories built with siphons posed serious challenges and discomfort such as spilling and loud flush noise for passengers. So, in 1975, James Kemper invented and patented a vacuum toilet to suit modern aviation needs . His invention was installed on Boeing planes by 1982, remedying problems like the aforementioned ones. He added a nonstick bowl that used a blue substance known as Skykem to replace water, and a powerful vacuum suction that left little to nothing behind. Skykem (the main ingredient in “blue ice”) aids in killing odors and disinfecting the bowl. Also, vacuum toilets use a lot less water than siphon toilets; and are much lighter.
SOURCE
– Red Ventures
– usatoday.com
