If your entire house is a water filter, clean water is never hard to find.
Every time it rains, this concrete house turns into an oversized water filter.
Rainwater runs from the roof through a custom-designed system and ends up in a cistern, clean enough to drink. A demonstration building was on display during Milan Design Week last month, complete with a fake cloud overhead to show it in action.
Using rainwater to supply drinking water could be âthe missing link for ecological