The quality of the water supply in Nepal is always the matter of questioning due to lack of proper treatment system, no use of disinfection and no proper maintenance. The conditions in the hilly and mountainous regions are even worse compared to the plain areas of Nepal with limited sources of water. Even though the source is found, it remains hard to make the pipeline distribution system. Hence the people have to collect water from the far sources and spend hours on the daily need of water. The tragedy behind water use in Nepal is that the water collected from this much of hardship is also not safe for drinking purpose due to the pollution in the source or due to bad storage vessels. According to various reports, sanitation-related diseases account for 72 percent of total ailments and diarrhea continues to be one of the leading causes of childhood deaths in Nepal.

Therefore an instant action for the safe drinking water supply is the must in the present context of Nepal. To implement the WASH program in the schools and to fight against diseases like diarrhea or cholera, ECCA uses a chlorine solution - a chemical compound that destroys and inactivates micro-organisms and pathogens in water - through the WATA Technology "WATA device".


The aim of the campaign is to provide the schools and communities a solution to treat the water for the safe water and the disinfection. The WATA technology allows producing chlorine solution that makes this treatment available for every community.

How the technology works

The WATA device is simple to use, robust and sustainable technology. The device requires only DC source or solar panel, a clean plastic container (not metallic), common salt (NaCl) and clear water. With the salt solution and the WATA connected to energy (grid or solar panel), an electrolysis process makes an active chlorine solution (hypochlorite of sodium) at a concentration of 6g per liter (0.6%).

Depending on a dilution matrix, the active chlorine can be applied to treat safe water or for disinfection for hands, washing vegetables, grounds, materials and Dakin solution.  For safe water treatment, 1L of active chlorine can treat up to 4'000 liters of water. 

Two reagents allows checking the production of the active chlorine solution and the safe water treatment. The WataTest is a drop-to-drop test that measure the concentration of chlorine at the end of the production of active chlorine. Therefore, the WataTest certificates a production of high quality. To check the correct treatment of safe water, the WataBlue check the free residual chlorine. According to the WHO norms, the safe water should have a small residual of chlorine (<5ppm), which is measured with the WataBlue. The free residual chlorine proves that all the pathogens are killed and also avoid recontamination of the water. Thus, the water cannot be recontaminated by the container of the water.

Partnership with Antenna Technologies  |   Support for Safe Water Program through GlobalGiving