All projects

Sanitation & Infrastructure

Low-cost sanitation that works without a sewer connection. Built right, these systems break disease transmission and return nutrients to the soil instead of into the groundwater.

A tippy tap made from a hanging bottle on a timber frame, tipped by a foot cord
Sanitation & InfrastructureVerified Build

Tippy Tap Handwashing Station

A foot-operated hands-free handwashing station built from a jerrycan, sticks and string — runs on a fifth of the water of a tap.

Under $5, often free from scrapBeginner
Workers plastering mortar onto the chicken-mesh shell of a ferrocement water tank
Sanitation & Infrastructure

Ferrocement Water Storage Tank

A wire-mesh and mortar shell that stores 5,000 litres for a fraction of the price of an imported plastic tank, built entirely on site.

$150 – $350 for a 5,000 L tankAdvanced
An arborloo in Ethiopia: a light superstructure over a shallow pit, ready to be moved and planted
Sanitation & InfrastructureVerified Build

Arborloo Shallow-Pit Compost Toilet

A shallow pit toilet with a movable slab and superstructure — fill it, cap it with soil, plant a tree on it and dig the next one.

$25 – $70 for a reusable slab and light superstructureBeginner
A masonry pit latrine superstructure with roof and vent stack
Sanitation & Infrastructure

Ventilated Improved Pit Latrine

A lined pit latrine with a dark interior and a screened vent pipe that pulls odour out and traps flies — the standard upgrade from an open pit.

$200 – $600 depending on lining and superstructureIntermediate
A urine-diverting dry toilet block with vent pipes and external vault access
Sanitation & Infrastructure

Urine-Diverting Dry Toilet

A twin-vault toilet with a diverting pedestal that keeps urine and faeces separate, so faeces dry out odour-free and both streams become usable fertiliser.

$200 – $500 for a twin-vault unitIntermediate
A gravel reed bed planted with reeds treating household greywater
Sanitation & Infrastructure

Greywater Reed Bed

Route kitchen and washing water through a gravel-filled planted bed instead of a stinking pit, and irrigate fruit trees with the outflow.

$50 – $200 for a household bedIntermediate
A composting chamber of the type used for a tiger worm toilet
Sanitation & Infrastructure

Tiger Worm Toilet

Run a pour-flush or drop toilet onto a bed of composting worms in a drained vault, so faeces are digested in place and the pit fills at a fraction of the usual rate.

$150 – $450 for a household unitIntermediate
A pour-flush latrine with its squat pan and offset pit covers
Sanitation & Infrastructure

Pour-Flush Latrine Pan & Water Seal

A cast pan with a water-seal trap turns a smelly pit into a clean, fly-free, odour-free toilet — flushed with two or three litres poured by hand.

$25 – $120 including pan, trap and pipeIntermediate
A foot-pedal handwashing station built from a steel drum
Sanitation & Infrastructure

Foot-Pedal Handwashing Station

A hands-free pedal station that runs on a jerrycan of water — no tap to touch, so washing hands doesn't recontaminate them.

$8 – $35 for the frame, container and linkageBeginner