Drinking water

We put a filter in front of our apartment room for drinking water,
but the filter get dirty really quick.

It goes brown and we have to change it within 3 weeks.
Also, we have to boil the water before drinking it.

I really miss drinking a clean water in Japan.
I was drinking underground water when I was a little boy.

I hope the time will come soon when everyone can drink
the pure water without worrying about contamination.