Meet Sello Daniel Selepe
A 28‑year‑old engineer from Thaba Nchu who’s turning data into cleaner water for his community.
Early Life and Inspiration
- Grew up in Zone 1, Thaba Nchu, walking long distances to fetch water.
- Saw firsthand how unsafe water could make people sick, especially after hearing about E. coli outbreaks in places like Hammanskraal and Mantsopa.
- These experiences sparked his desire to use science to solve real‑world problems.
Engineering the Solution
- Graduated from the Central University of Technology.
- Joined the Free State Provincial Government’s Technical Assistance Program, which placed 59 engineers in struggling municipalities.
- Assigned to Nketoana Municipality, he began building digital tools to make water supply more reliable.
How Guardian of Every Tap Works
Real‑time Monitoring
- Sensors track water from the source (raw extraction) all the way to the tap.
- The system continuously checks quality, flow, and pressure, flagging any issue instantly.
Data Integrity
- Technicians enter readings directly into the app; each entry is time‑stamped and locked, preventing tampering or loss.
- Replaces old paper logbooks that were prone to mistakes and missing pages.
Safety Checks
- Automatically compares each sample to South African water standards.
- Labels the water as “safe to drink” or “needs treatment,” giving clear guidance to operators and residents.
Impact and Future Goals
- Provides municipalities with accurate, up‑to‑date information, helping them respond faster to contamination risks.
- Increases accountability because every action is recorded and traceable.
- Selepe hopes to expand the system to other provinces and inspire more young engineers to tackle local challenges with technology.
Recognition and Support
- Highlighted by the Free State government as an example of innovation driving a professional public service.
- Continues his groundwater studies at the University of the Free State, building on the foundation that NSFAS and provincial scholarships gave him.
Conclusion
Sello Daniel Selepe’s story shows how a personal connection to a problem can lead to a practical, tech‑savvy solution. By digitizing water monitoring, he’s not only improving safety today but also laying the groundwork for a more secure and accountable water future for teens and families across the Free State.


