Solvatten is a portable 11 liter container that harnesses sunshine to heat and treat water at a household level. Put Solvatten in a sunny place, expose it for 2-6 hours and the water will be drinkable. An indicator shows when it is safe to drink. Solvatten can also be used as a solar water heater, providing hot water for cooking and hygiene.
- Film: Daniel Wiegstrand
- Music: Daniel Wigstrand