How does the toilet on the plane work?

The aircraft does not have a large water tank to flush the toilet but the toilet is always clean.

In the summer, when people flocked to travel, commercial planes often crowded with passengers. Perhaps a delicate issue will always be in the minds of many travelers: the toilet on the plane is empty. But have you ever wondered what will happen next when you press the discharge button on the plane?

Most aircraft design toilets at the end.(Photo: ZeeNews).

According to Mental Floss, unlike conventional toilets, an airplane cannot contain water-filled safes to push waste out of the toilet. In addition to consuming hundreds of liters of water, it is not advisable to leave liquids in an environment that often vibrates like airplanes.

Previously, aircraft used an electronic pump system to move waste along with a deodorant solution called Anotec . This method works, but a problem arises: the aircraft must carry a large amount of the solution, almost like storing water. That increases fuel costs and adds weight to the aircraft. Of course, airlines expect more passengers than water or waste solutions.

Since the 1980s, airplanes use vacuum compression to suck liquid and solid waste into a tank behind the aircraft. When you press the discharge button, the valve at the bottom of the toilet opens, allowing the waste to be sucked with extreme force straight into the tank. The tank will be rinsed and disinfected after landing.

There is an important opening that can help passengers not queue long to get to the toilet. Flight attendants say that the WC is usually empty immediately after the indicator light needs to wear a seatbelt or before the drink is served.