Think you have a shitty job? Chances are you’ve not heard of the night soil carriers—men whose job was, quite literally, to deal with other people’s shit.
For more than a century, night soil carriers formed an invisible yet indispensable part of everyday life in ezarly Singapore. Their work—collecting and transporting human waste—made densely populated neighbourhoods liveable long before modern sanitation existed. Yet despite their essential contribution, these workers endured deep social stigma. They were people others preferred not to see, not to acknowledge, and certainly not to be near with. Their labour kept the city functioning, even as society pushed them to the margins.
Early Singapore Sanitation
For much of its early history, Singapore was a quiet island with fewer than a thousand inhabitants. This changed rapidly after the arrival of the British in 1819 and the establishment of Singapore as a free port under the British East India Company. Population growth was explosive, and with it came a problem that could not be ignored—human waste.
Most residents then lived in kampongs, residential houses and tightly packed shophouses fitted with bucket latrines. These consisted of wooden or ceramic containers placed beneath squat holes. A single household of ten or more people would use the same bucket daily. The smell was overpowering. It was common for users to smoke while relieving themselves, simply to mask the stench.

Human waste—euphemistically known as “night soil”—had to be removed regularly to prevent overflow, disease and unbearable living conditions. This necessity gave rise to the night soil carrier, a vocation that became increasingly formalised by the mid-19th century as Singapore’s population grew.
The Night Soil Carriers
Night soil carriers were largely poor Chinese immigrant labourers, drawn from the lowest rungs of colonial society. The work was filthy, physically exhausting, and dangerous, which also made them to be looked down upon. As a result, carriers were often socially ostracised and lived segregated from the wider community. Their wages were pittance.
Their work typically began before dawn, when the streets were quiet and businesses were still shuttered. This timing reduced public exposure to odours and unpleasant sights—hence the term “night soil.” Even so, accidents happened. Buckets were sometimes dislodged, spilling their contents along narrow alleys or streets. Such incidents almost always provoked public outrage, with blame directed squarely at the already-marginalised worker.
Tools of the Trade
The job was brutally physical. Night soil carriers manually removed full buckets from latrines—accessed through small metal doors behind shophouses or from standalone outhouses in rural areas. Each bucket could weigh between 20 and 30 kilograms when full. These were balanced on bamboo poles and carried across the shoulders. In urban areas, teams were often accompanied by the distinctive “32-door” trucks, which transported the collected waste for disposal. Spillage was common, and protective gear was minimal or entirely absent. Carriers were constantly exposed to parasites, bacteria, and disease. Yet their work played a critical role in preventing outbreaks of cholera, typhoid, and dysentery in a crowded port city.
Disposal and Reuse of Night Soil
Collected night soil was transported to depots on the outskirts of town. From there, it was either buried, crudely treated, or sold as fertiliser to vegetable farms in rural Singapore and Johor. At times, waste was also dumped into open drains or directly into the sea.
The night soil bucket system was not unique to Singapore. Similar systems existed across Asia and parts of Europe. In Singapore, the system became regulated in the 1890s. Prior to that, waste collection was largely informal, carried out by coolies who transported faeces to plantations for agricultural use. Problems were widespread. Wooden buckets were difficult to seal properly, leading to leakage and overpowering odours. In response, the municipal government passed legislation in 1889 to restrict collection hours. Two years later, wooden buckets were banned and replaced with galvanised iron ones. Cesspits were also prohibited in an effort to improve hygiene.
Public Health and Growing Regulation
By the late 19th and early 20th centuries, colonial authorities increasingly recognised the limitations of the night soil system. Epidemics exposed the dangers of manual waste collection, especially in a rapidly urbanising city. Municipal ordinances were introduced to regulate collection schedules. Inspectors monitored cleanliness, and penalties were imposed for spillage or illegal dumping. Even so, enforcement was uneven, and the system struggled to keep pace with Singapore’s growth.
The Beginning of the End
The decline of the night soil carrier began with the introduction of modern sewerage infrastructure in the early 20th century. Underground sewers were installed in central districts, flushing toilets became more common, and pumping stations and treatment facilities were constructed. The system was phased out gradually—first in the city centre, then in densely populated neighbourhoods. Rural kampongs retained night soil services the longest.
On 24 January 1987, Singapore’s last night soil collection centre at Lorong Halus officially closed. With that, a century-old system passed into history. The remaining 78 night soil workers were either redeployed as cleaners or retrenched. The iconic 32-door trucks disappeared from Singapore’s roads, ending a chapter few mourned but many had depended on. Today, a replica night soil bucket can be found at the Sustainable Singapore Gallery at Marina Barrage—a quiet reminder of a forgotten labour force.

From Buckets to Tunnels
Since 2000, Singapore has developed the Deep Tunnel Sewerage System (DTSS), a 21st-century solution to waste management. Managed by PUB, the system channels used water from homes and industries through vast underground superhighway of 206 km of tunnels to water reclamation plants at Changi, Tuas, and Kranji. It cost 10 billion dollars and due to complete by end of 2026. It will also halve the land area needed for used water infrastructures.
Since 2000, Singapore has developed the Deep Tunnel Sewerage System (DTSS), a 21st-century solution to waste management. Managed by PUB, the system channels used water from homes and industries through vast underground superhighway of 206 km of tunnels to water reclamation plants at Changi, Tuas, and Kranji. It cost 10 billion dollars and due to complete by end of 2026. It will also halve the land area needed for used water infrastructures.




















































