There is one thing that really surprised me when I moved to Kiev twenty years ago – I noticed these strange pavilions with faucets in parks and on street corners. It turned out that Kiev stands on a rich source of fresh water, and these pavilions, named with the pretty French word “buvette”, are set all around the city, so everybody could have free access to fresh water. Please note that tap water in Kiev is not suitable for drinking, so you can always see a couple of locals filling up large plastic bottles to take home.
I always stop at one of the buvettes on my bicycle trips to wash up and fill up my water bottle. The most central one is in Shevchenko Park, the full map is here.
The water may taste a little strange, not everybody likes that, but the sanitary authorities check the quality every year, and it’s as clean as your Evian. So feel free to quench your thirst for free!