Even when rain is in short supply, beautiful rain barrels are not. According to Surfrider.org, for every inch of rain your area gets and 1,000 square feet of roof, you can harvest about 0.62 gallons ...
The practice of collecting rainwater for household and garden use extends back to ancient human civilizations. People in the Indus Valley used huge vats cut into the rock to hold rainwater that could ...
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