Updated on December 19, 2023


Created on July 12, 2017

AquaSanTec WonderLoo

Upcoming Update

The AquaSanTec WonderLoo is a urine diverting dry toilet.

Developed By
  1. AquaSanTec
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Product Description

The AquaSanTec WonderLoo is a plastic urine diverting dry toilet made in Kampala by AquaSanTec. Urine is led via a pipe to a separate container while the feces are stored in a bucket inside the toilet. The toilet can also be used as a pedestal over a pit.

The target region is East Africa with Uganda and Kenya as the main target markets.

Target SDGs

SDG 6: Clean Water and Sanitation

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations

AquaSanTec produces the toilet and have distributors nationwide in Uganda. Kentainers sells the product in Kenya.

Competitive Landscape

Manufacturing/Building Method

Crestanks has a 150,000 sqft factory in Kampala where they produce their products including the WonderLoo. The factory has 150 permanent staff. The plastic seat and pipe for urine are ordered separately and then mounted by Crestanks.Interview with manufacturer

Intellectural Property Type


User Provision Model

The product can be ordered from AquaSanTec's website.

Distributions to Date Status

The WonderLoo has been distributed in Uganda and Kenya.Interview with manufacturer

Toilet type


Evacuation method


Storage conditions

Container storage

Capacity (L)

22 L

Time until emptying


Design Specifications

The WonderLoo is constructed with a plastic pipe for urine separation and a 22 L bucket for storing faeces accompanies the Wonderloo. The plastic bucket is placed inside the WonderLoo and lifted out to empty when it is full. The urine pipe is lead to a separate storage container. The pedestal can be placed in any bathroom since it has internal storage. When it is full the bucket inside the WonderLoo is lifted out and emptied. The urine is connected to a separate storage tank. The separated faeces and urine can then be used as soil amendment and/or fertilizer. It is also possible to place the Wonderloo above an open pit. It is also recommended to add ash in the bucket after defecation to make the faeces dry faster and reduce smell.Interview with manufacturer

Product Schematics

Technical Support

The Crestank products are manufactured to require minimal maintenance. Installation instructions and product schematics are offered by the manufacturer.

Replacement Components

Available from Crestank factory.


The product is expected to have a lifespan of 30 years.

Manufacturer Specified Performance Parameters

Crestanks has produced the pedestal to be a "long-term, affordable, and sustainable toilet system for every household". It should reduce smell and be suitable for the elderly.Interview with manufacturer

Vetted Performance Status



Separation of urine and faeces makes handling the waste easier and reduces the risk of contact with pathogens. Since the bucket has to be lifted out of the toilet there is a risk for contact with the excreta.

Complementary Technical Systems

Container for storage of urine and compost for treatment of faeces.

Academic Research and References

AquaSanTec – WonderLoo. Available: http://www.aquasantec.com/sanitation/wonderloo

Kentainers – WonderLoo. Available: https://kentainers.co.ke/product/wonderloo-toilet-pedestal/

Compliance with regulations


Evaluation methods

The manufacturer has evaluated the product according to affordability, robustness, and user friendliness.

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