It isn’t easy to come up with ‘one size fits all’ instructions for building rainwater harvesting
systems because of variations in styles of roofs, downspouts, storage tanks, and garden layouts.
You have to use a combination of research, common sense, ingenuity, and dumb luck to design
and build your system.”
-Lenny Librizzi, Assistant Director of Open Space Greening at GrowNYC
Rain water harvesting (RWH) is the means of collecting and storing rain water in large, durable
containers, usually, collecting from rooftop gutters. RWH systems come in a variety of shapes
and sizes. Rain water harvesting systems are fairly easy to construct.
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