The tap water in Warsaw is top notch. It tastes and feels very natural, like some mountain stream water (just to compare,  I've been to the UK and their tap water is disgusting due to chlorine smell and taste) which is quite significant for someone like me who has dry skin and eczema.,(reply>), One of few places in Poland where tap water is not chlorinated (ozone is used instead). Maybe this is one of the reasons why,(reply>), That really depends where in Warsaw and what piping is in a particular building, there are very significant differences. Different parts also use different filtration systems.,(reply>), uk water is very hard and suffers from lime issues in places, but scottish water is delicious,(reply>), they add fluor to tap water in UK?<br>maybe it was giving You health problems.