The English used in this article or section may not be easy for everybody to understand. (March 2017)
A toilet is a place where humans get rid of waste that comes from their bodies (urine and feces). Most toilets use water to flush the waste through plumbing into a sewage system. However, some modern toilets do not use water, and are called dry toilets.
Toilets in homes change
In developing countries, many people do not have a toilet in their home. More than 4.5 billion people do not have access to toilets.
Public toilets change
A public toilet may or may not cost money to use. Toilets that cost money are called "pay toilets".
Public bathrooms often have many toilets with walls between them. This makes areas called stalls (US) or cubicles (UK). Bathrooms for men often also have separate urinals. Urinals can either be on the wall for a single user, or a basin or trough for many men to use at the same time. Urinals on walls sometimes have small walls or dividers for privacy reasons.
Outdoor public toilets (in the street, around parks, etc.) are a form of street furniture. These toilets are in individual cubicles. Some are simple and have little or no plumbing. Others are less simple, and some toilets even clean themselves after every use.
Some toilet-cubicles are mobile and can be put in place where and when they are needed. These toilets are called "portable toilets". Portable toilets are commonly used at large outdoor events like concerts, festivals or carnivals.
In 1775, Alexander Cumming patented the S-bend. This was crucial in the development of the flushing toilet. It was a simple length of pipe with a curve in it.
Every day, toilets use 141 billion liters of water to flush waste. Engineers try to make toilets that do not need so much water. In 2019, one group made a chemical to put in toilets to make them more slippery so that the waste flushes away with only a little water.
- Yu, Katrina (9 November 2018). "Why Did Bill Gates Give a Talk with a Jar of Human Poop by His Side?". NPR.
- Vivianne Callier (November 18, 2019). "Superslippery toilets squash water wastage". Scientific American. Retrieved November 26, 2019.
- Penn State (November 18, 2019). "New, slippery toilet coating provides cleaner flushing, saves water". Eurekalert. Retrieved November 26, 2019.