Completely agree that access to clean potable water should be a fundamental human right.
In our place we get govt water but very limited. So bulk of our water comes from borewell for non drinking purpose. For drinking the govt water is supposed to be treated, but as we cannot take risk, and due to it being hard water, we use the reverse osmosis purifying filter. It is a necessity though in past with soft water we have used a simpler filter. Since the water has been filtered boiling water for drinking has reduced as a practice. When we don't have electricity to run the filter it is indeed back to boiling water.
Cheers from a fellow #dreemerforlife