His Grandmother Had to Walk into the Bush. Now, He’s Bringing Dignity to Millions with Waterless Toilets

The defining moment of Kaveto Tjatjara’s life did not happen in a boardroom or a high-tech laboratory, but in a quiet village in Namibia in 2014. While visiting his home, Kaveto watched his elderly grandmother walk a long distance from her homestead into the bush simply to find a shred of privacy to relieve herself. For many, this is a hidden reality of rural life; for Kaveto, a Rundu-born accountant, it was a profound call to action. He realised that in a country as developed as Namibia, the fact that over 1.5 million people, nearly half the population, lack access to safely managed sanitation was not just a statistic, but a crisis of human dignity.

Namibia is a desert nation, the most arid country in sub-Saharan Africa. Conventional flush toilets are often a luxury that the environment simply cannot afford. In informal settlements and rural villages, the lack of sewerage infrastructure means that people are forced to use unhygienic pit latrines or practice open defecation. These conditions are breeding grounds for diseases like Hepatitis-E and diarrhoea, which often claim more young lives than many other major illnesses combined.  Kaveto knew that a "Western" solution requiring massive water pipes and central treatment plants would take decades to arrive, if ever. He decided that if the water wouldn't come to the toilet, the toilet had to work without the water.

This was the birth of Flushh, a social enterprise that has moved from a bold dream to a thriving, market-ready reality. Kaveto, alongside co-founder Hilkka Mlunga, didn't just design a product; they designed a service. Speaking to the Namibian Sun and New Era in recent years, Kaveto has emphasised that Flushh is built on "experience rather than market theory."  Before launching, he spent years refining his skills, working with auditing firms like PKF and even participating in professional development with Deloitte in the United States. This rigorous background in finance and systems allowed him to build a business model that is as sustainable as the technology itself.

The technology behind Flushh is a masterclass in circular economy engineering. When a user "flushes" a Flushh toilet, they aren't using precious litres of water. Instead, a handful of locally sourced sawdust is used as a cover material. This sawdust, often collected from local carpentry shops that would otherwise throw it away, effectively traps odours and begins a natural composting process.  But the innovation doesn't stop at the seat. Each Flushh unit is equipped with smart sensors and solar power for lighting and ventilation, ensuring that the experience is safe and comfortable even in off-grid areas. Highly trained sanitation workers then collect the sealed cartridges regularly, transporting them to a composting facility where the waste is transformed into biochar or biogas, valuable sources of renewable energy and fertiliser.

Getting this product into the market required overcoming deep-seated social taboos. In many communities, discussing waste is uncomfortable, and using a waterless system was a foreign concept. To solve this, Flushh adopted a "Sanitation-as-a-Service" model. Instead of asking low-income families to pay a massive upfront cost for a toilet, they offered affordable monthly subscriptions. This allowed families in informal settlements to have a clean, private toilet inside their own homes for the first time. The impact was immediate. During a 12-week pilot in a household that previously shared a communal pit latrine with 1,000 other people, the family reported not just improved health, but a massive increase in their sense of safety and productivity.

Today, Flushh is a recognised leader in the African "Cleantech" space. The company has moved beyond individual households and now services schools and community events. For example, at the Siguruguru Primary School in the Tumweneni informal settlement, a single Flushh unit now serves over 350 pupils, providing a level of hygiene that was previously unimaginable.  This success has not gone unnoticed by global observers. In 2022, Kaveto was named a winner of the African Youth Adaptation Solutions (YouthADAPT) Challenge, receiving a $100,000 grant and accelerator mentorship from the African Development Bank and the Global Centre on Adaptation.  He has also been recognised as an Echoing Green Fellow and a Mandela Washington Fellow, using these platforms to advocate for "Human Resilience" in the face of climate change.

The future for Kaveto and Flushh is one of aggressive scaling. With 2,000 daily users and counting, the goal is to end open defecation in Namibia and eventually expand into other water-scarce regions across Southern Africa. Kaveto’s vision is a world where "business is a force for good," and where the simple act of using a bathroom is no longer a risk to one's life or dignity.  As he often tells young African innovators, the challenges facing our communities are not just problems; they are opportunities to build the systems of the future. By turning waste into energy and water scarcity into a catalyst for design, Kaveto Tjatjara is proving that the most sustainable solutions are the ones that honor the people they serve.

Lessons for Budding Makers

Kaveto Tjatjara's journey offers valuable insights for aspiring creators and entrepreneurs:

1. Solve the "Grandmother Test": Kaveto’s innovation was born from observing a specific, painful struggle in his own family. Budding makers should look for real-world problems that affect the dignity and daily lives of people they know, as these often lead to the most impactful and resilient business ideas.
2. Innovation Requires a Service Mindset: A great product is only half the battle; Flushh succeeded because Kaveto developed a "Sanitation-as-a-Service" model with monthly subscriptions, making a high-tech solution accessible to low-income users who couldn't afford a large one-time payment.