Rainwater Cisterns: Design, Construction, and .
Rainwater Cisterns: Design, Construction, and Treatment. Roofcatchment cisterns are systems used to collect and store rainwater for and other uses. Save For Later Print. Articles. Updated: June 2, 2016. A system of gutters and downspouts directs the rainwater collected by the roof to the storage cistern. The cistern, typically located underground, may be constructed of various ...