Ever since the emergence of sedentary societies, human settlements have had to contend with the closely-related logistical challenges of sanitation and of reliably obtaining clean water. Where water r
Qanat in Kashan surfacing within the Fin Garden; it is thought to have served Iran's Sialk area for thousands of years.
Astronaut Jack Lousma taking a shower in space, 1974
Skara Brae, a Neolithic village in Orkney, Scotland, with what might have been water-flushing toilets, 3180–2500 BCE
A Chinese ceramic model of a well with a water pulley system, excavated from a tomb of the Han Dynasty (202 BCE – 220 CE) period
Flush toilet
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A flush toilet is a toilet that disposes of human waste by collecting it in a bowl and then using the force of water to channel it through a drainpipe to another location for treatment, either nearby
History of water supply and sanitation
…bringing in clean water, taking out waste water and storm sewage canals for overflow when there was heavy rain. One site possibly had a 16th century BCE flush toilet. These Minoan sanitation facilities were connected to stone sewers that were regularly flushed by rain, flowing in through the collection system. In…
A flush toilet bowl during flushing action
Vacuum toilet in a train in Switzerland
An elevated cistern produces a high-pressure flush using hydrostatic pressure.
A washout toilet which holds fecal matter in a shallow depression until flushed.