A toilet is a plumbing fixture and disposal system primarily intended for the disposal of the bodily wastes: urine and fecal matter. Additionally, vomit and menstrual waste are sometimes disposed of in toilets in Western societies. The word toilet describes the fixture and, especially in British English, the room containing the fixture. In Canadian English, the latter is euphemistically called a washroom ; in American English, a restroom or bathroom . The latter term often describes a room that also contains a bath tub. A room with only a toilet and a sink is sometimes called a half-bathroom , a half bath , and a powder room .
There are two basic types of modern toilets: the dry toilet and the wet toilet, the latter being the most commonly known and producer of blackwater. The dry toilet needs no plumbing for water input or evacuation, but is often coupled with some ventilation system.
Prior to the introduction of modern flush toilets, most human waste disposal took place outdoors in outhouses and latrines. However, the ancient cities of the Indus Valley Civilization, e.g., Harappa and Mohenjo-daro which are located in present day India & Pakistan had flush toilets attached to a sophisticated sewage system—and other forms of toilets were used both in the time of the Romans and Egyptians as well. Although a precursor to the modern flush toilet system was designed in 1596 by John Harington, the toilet did not enter into widespread use until the late nineteenth century, when it was adopted in English upper class residences.
Types of toilets
The most common type of toilet in modern cities is the flush toilet, in which water takes away the waste through sewers to a waste treatment plant. In rural areas where sewers are not practical, septic tanks may be installed instead.
The most common design in western countries is the sitting toilet. Squat toilets are still used by the majority of the world's population.
Public toilets
Main article: WashroomPublic toilets, public lavatories, or public conveniences are toilets that are accessible to the general public with common access from the street. Conveniences being the collective term for male and female designated toilets, convenience (singular) usually acquiring a gender attribute.
A public toilet may or may not cost money to use; for those that do, see "pay toilet". Between the categories of outright free and outright pay toilets, there is a grey area of toilets where a fee is expected, but not enforced. A charge levied in the UK during the mid-20th century was one British penny, hence the generally adopted term "spend a penny" meaning to use the toilet.
Public facilities often have several toilets partitioned by stalls (US) or cubicles (UK). Facilities for men often also have separate urinals, either wall-mounted fixtures designed for a single user, or a constantly-draining basin or trough for collective use. Wall-mounted urinals are sometimes separated by small partitions or other obstructions for privacy, i.e., to keep the user's genitals hidden from public view.
Outdoor public toilets (in the street, around parks, etc.) are a form of street furniture. For mixed sex arrangements, there are cubicles varying from simple devices with little or no plumbing to more luxurious versions that automatically clean themselves after every use (for the latter, see Sanisette). Facilities without walls all around are typically for urination only, and for men only; although passers-by can see the urinating men from the back, they cannot see the genitals. These street urinals are known as Pissoirs after the French term (see Urinal).
Some facilities are mobile, and can thus be put in place where and when needed, e.g., for a weekend at an entertainment venue. Additionally, some can be sunk into the ground (and thereby made inoperable), for the periods that they are not needed. The idea behind this is that some people do not like the sight of a public toilet in the street, and they are more easily hidden than repeatedly moved. This type is typically installed in entertainment areas and made operational during weekend evenings and nights.
A portable toilet is an outdoor public toilet with walls which can either be connected to the local sewage system or store the waste and be emptied from time to time. Many toilets can be cleaned on the spot, or at a central location in the case of a mobile toilet or urinal. In Europe, public toilets are also set up for cities as a compensation for advertising permits. They are part of a street furniture contract between the out-of-home advertising company and the city council. The reason for this combination is the shortage in city budgets.
Terms used to identify a public toilet will vary from region to region. The Gents and The Ladies are commonly used British terms meaning the male and female toilet respectively. Some European public toilets may be marked "WC" (Water Closet); while in the Philippines the label "CR" (comfort room) is common.
Some public toilets have begun to be provided with flushable paper toilet seat covers which allow the user the comfort of knowing that they are not in contact with a surface previously used by a stranger. There is however no medical evidence that these prevent the spread of disease.
Toilets for people with disabilities
Some toilet areas (otherwise known as "stalls"), are specially adapted for people with disabilities. These are wide enough to allow the entry and use by a person in a wheelchair, and often feature hand-holds or grab bars bolted to the wall, enabling the person to maneuver onto the toilet, if necessary. Some countries have legal requirements for the accessibility of toilets.
Further information: Accessible toiletsGender and public toilets
Separation by sex is characteristic of public toilets, with writings or pictograms of a man or a woman are used to indicate where their respective toilets are. Warsaw, Poland is a rare exception where a triangle indicates male and a circle indicates female.
In restaurants, bars and night clubs, the identifications can be designed to match the decoration of the premises, using male and female figures or parts of the body, text, or even puns, making it difficult for some customers to identify them.
Sex-separated public toilets are a source of difficulty for some people. For example, people with children of the opposite sex must choose between bringing the child into a toilet not designated for the child's gender, or entering a toilet not designated for one's own. Men caring for babies often find that only the women's washroom has been fitted with a change table. People with disabilities who need assistance to use the restroom have an additional problem if their helper is the opposite sex.
Sex-separated public toilets are often difficult to negotiate for transgendered people, who are often subject to embarrassment, harassment, or even assault or arrest by others offended by the presence of a person they interpret as being of the other gender (whether due to their outward presentation or their genital status). Transgendered people have been arrested for using not only toilets that correspond to their gender of identification, but also ones that correspond to the sex they were born with.
Some public places (such as facilities targeted to the transgendered or LGBT communities, and a few universities and offices) provide individual washrooms that are not gender-specified, specifically in order to respond to the concerns of gender-variant people; but this remains very rare and often controversial.
A significant number of facilities have additional gender-neutral public toilets for a different reason — they are marked not for being for females or males, but as being accessible to persons with disabilities, and are adequately equipped to allow a person using a wheelchair and/or with mobility concerns to use them.
Amnesty International includes segregated toilets among the measures to ensure the safety of girls in schools.
Further information: Gender-neutral toiletFamily restrooms
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