They may look like fancy wind chimes, but these chains are silently doing something brilliant. They’re called Japanese rain chains or kusari-doi, and they’re turning rooftops into rain-harvesting marvels.

You may have seen them hanging from eaves if you have visited Kerala, where water gently streams down cup by cup during a downpour. They’re not just placed for aesthetic purposes but to harvest rainwater, thus a step closer to sustainability.

So why chains instead of old pipes?

It is no secret that pipes are practical, but they’re high-maintenance. They get clogged with leaves, breed moss and mold, and are a pain to clean. Ever had a rainwater pipe leak inside your wall? That is no less than a nightmare!

Rain chains solve that. There are no blockages, no rusting from the inside, and no need to break walls to repair anything. Plus, they are stunning to look at. You see the water flow down slowly........

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