roca posted that five years ago and the water very well have could have contained interference.
Look what Wroclaw Boy said about it.
I used to drink the tap water for years, then i stopped and my toilet requirements became less frequent.
Since then Poland has been replacing the old water pipes and things have improved to the point that the Polish people are starting to drink the water from the taps in their homes again.
That was the POINT here.
roca also made another very good point.
you cannot remove the hazardous chemicals just by ''boiling'' the water
Your source Notty will most likely get deleted since it is not in English.