Where does flushed toilet from the airplane go? 💩💦 #RandomThoughts

As a child, I used to think that when we flush the toilets in the airplane they would flush out the “stuff” outside to the skies below.

Because it was so loud, and the liquids get sucked out so quickly, it gave the impression it was going “outside”.

Don't all of us used to assume this? 🤣

Turns out that no, that stuff isn’t going outside, Alhamdulillah. It gets sucked by a powerful vacuum suction, into sealed storage tanks.

I can appreciate the simplicity and effectiveness of the engineering, which airplanes been using the same base technology as it was introduced back in the 1970’s: The vacuum suction works by pressure difference. Since the waste tank is kept at a lower pressure than the cabin (it is not pressurized like the cabin is), once the valve in the toilet bowl is opened, the pressure difference causes air from the toilet bowl to be rapidly sucked out. In case the differential isn’t sufficient, there is also a vacuum pump in the system: which explains how the toilets still work on the ground.

So no, crap from the planes don’t get dumped into the clouds.

There goes my outdated theories about Acid Rain.

And no, you shouldn't expect random "blessings from the skies" 💩 if you live especially close to the airport. 

Alhamdulillah, it’s great to back in Miri. Beach time.. let’s GOoOoO, Muawiyah 😎