The CRAPPER Composting Toilet
Toilets for People
The CRAPPER (Compact, Rotating, Aerobic, Pollution Prevention, Excreta Reducer) is a self-contained waterless composting toilet. The CRAPPER’s core technology is a rotating, horizontally-mounted drum that accelerates the composting process.
Largely Latin America: Nicaragua, Mexico, Peru, Haiti. Also SenegalInterview with representative
Toilets for People manufactures and sells volume retail orders to implementing NGOs.Interview with representative Implementing organizations include NGOs such as:
1. El Porvenir in La Palma, Nicaragua
2. American Friends of La Korsa (AFLK) in Tambacounda, Senegal
3. Fundacion Haciendas del Mundo Maya (FHMM) in Campeche, Mexico
4. Rise Haiti and Foi et Joie in Port-au-Prince, Haiti
5. Amazon Promise in Belen, Peru
$500 USD for the CRAPPER kit which includes the toilet, male and female urinals, and handwashing station.Interview with representative
Envirolet, Sun-MarInterview with representative
Goal 6: Clean water and sanitation
Communities where there are people who realize and want, but don’t yet have, the benefit of improved sanitation. TfP serves economic segments including the “poorest of the poor” up to those making $10-15 per day. Additionally, TfP focuses on flood-prone communities and especially flooded communities needing emergency sanitation response.Interview with representative
Individually built. If the quantity of order is above 10 units, each CRAPPER’s parts are cut from a sheet of standard 3/4 inch plywood sheet with a CNC router. HDPE is used for the top and bottom for increased durability. Units are hand assembled, and shipped ocean freight to implementing country. Orders under approx. 10 units are manufactured in-country with hand tools and local materials.Interview with representative
Open sourceInterview with representative
Toilets for People manufactures and sells volume retail orders to implementing NGOs, who then subsidize sale of the CRAPPER to end users as part of a WASH program. Typically, Toilets for People sells to NGOs with the understanding that NGOs will sell the units to end users at a price point of between one and two weeks of average income in the context. Toilets for People also fills orders for emergency response contracts in flood situations. These units are provided to end users gratis by implementing partners who have purchased from Toilets for People.Interview with representative
30Interview with representative
The CRAPPER design relies on a horizontally mounted rotating drum, much like a garden composter, that sits inside a box. Following use, individuals cover waste with saw dust or dry leaves, spin it once a week. Natural aerobic decomposition eliminates dangerous pathogens and foul odors. It also reduces the volume of the waste by 80% so the user only needs to empty the drum out once every 2 months. After emptying, TfP suggest users dig a hole a foot deep, bury the compost with wood ash as a disinfectant and cover it with dirt. The compost can also be used as fertilizer for planting trees for cash crops or reforestation.
The CRAPPER design specificationsInterview with representative are: – Weight, 100 pounds (inlcuding male and female urinals and handwashing station) – Dimensions in inches, 18W x 29L x 23H – 15 Gallon drum capacity
Toilets for People provides training and technical support to their NGO customers. Those implementing NGOs then provide technical support to end users. Toilets for People interacts directly with end users on occasional field visits.Interview with representative
Replacement components can be made with local materials.Interview with representative
The CRAPPER requires two months active composting of waste in its drum, after which composted waste is removed by user to a hole nearby where it is covered in wood ash and dirt. A tree can be planted in the compost hole. The CRAPPER has a 10-year life expectancy.Interview with representative
The CRAPPER has a 10-year life expectancy.
The CRAPPER’s usage time for one household before emptying compost barrel is ~2 months.Interview with representative
It is recommended that protective clothing is used while handling waste material.Interview with representative
Kanal, Abraham, et al., A Novel Composting Toilet to Decrease Open Defecation in an Urban Slum in Belén, Peru. Brooklyn, NY: Albert Einstein College of Medicine, 2015.
Field trials.Interview with representative
Check out this promotional video featuring the CRAPPER.
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