Jack Gall

LinkedIn↗

Hi, my name is Jack, and I’m a final-year Industrial Design student. Spending my life outdoors has shown me how urgently we need to rethink the way we design for our environments. I’m focused on creating products that strengthen ecosystems, support sustainable fishing, and give people better ways to interact with the places they depend on. I’m also drawn to projects that address challenges faced by low-resource or underserved communities, where thoughtful design can have a meaningful impact. I’m driven to push design forward - practical, responsible, and ready to challenge the way things have always been done.

Meet Sroli

Sroli is a simple, low-cost system for collecting, transporting, and purifying water in low-resource communities. It uses accessible PET bottles and solar disinfection (SODIS) to make water safer to drink with minimal materials.

Understanding the Problem Space

Through detailed research into how people collect, carry, and purify water, as well as the limitations of current products and materials, key problem areas became clear. These insights shaped the direction of the project and laid the groundwork for creating Sroli.

Water Collection with Sroli

After being rolled to the water source, users are able to fill all seventeen 1.5L PET bottles simultaneously while they remain secured inside the frame. This speeds up the collection process and reduces the time and effort required at the source. Using low-cost, widely available bottles keeps the system simple, adaptable, and easy to maintain.

Sroli in Action

Testing demonstrates Sroli’s ability to carry 25.5 litres of water as a low-effort transport tool for long-distance water collection. By shifting the load from the user’s body to the ground, Sroli makes high-volume transport more achievable on uneven terrain - proving that even when the road is long, the water can feel lighter. Prototype testing confirmed reliable rolling performance, stable bottle retention, and a comfortable handling experience even under full load.

Purifying with SODIS

Once the bottles are laid out in the sun, SODIS purification begins. Sunlight provides enough UV energy to kill harmful microorganisms in the water, requiring no specialised equipment beyond the bottles themselves. After around six hours of exposure, the water becomes safe to drink - offering a reliable purification method for communities with limited resources.

Compact Design, Simple Assembly

This build sequence demonstrates Sroli’s flat-pack structure, which allows the entire system to be shipped in a compact, low-volume package. Keeping transport costs down makes wider distribution more realistic, while easy assembly ensures communities can build, maintain, and replace parts themselves.

Explore more

View all