The third day was also spent practicing intensively. Producing the correct concentration of sodium hypochlorite for safe drinking water is challenging at first. The temperature of the solution must also be monitored throughout the entire process. If it gets too high, the electrolysis must be interrupted.
As the participants gained experience, the results improved significantly. The treated drinking water tasted neutral – you couldn't tell that it had been disinfected.
At the end, each group received its own equipment set for its village. With 0.5 liters of sodium hypochlorite, 2,000 to 2,500 liters of drinking water can be treated. It takes about three hours to produce this amount.
Now the participants can independently provide clean drinking water for their village.
