Fake . There is a problem with water quality in Kyiv.
It is rumoured that delays in logistics caused by the war have cut off chlorine supplies to the capital's Vodokanal. This has allegedly led to a deterioration in drinking water quality. However, this is not true.
This fake is refuted by the Center for Combating Disinformation at the National Security and Defense Council. Kyivvodokanal has sufficient reagents stocks for water disinfection following sanitary requirements. The centre adds that 40% of water in Kyiv is disinfected without chlorine, more modern reagents.