Low-Cost Roof-Based Rainwater Harvesting with Dual 200-Liter Drums¶
Rainwater & Storage • Est. CapEx: Low-cost / Locally fabricated
Technical Overview¶
A simple, low-cost rainwater harvesting system designed for urban households, using two 200-liter drums for storage. It aims to enhance water security in the Philippines with an affordable and easy-to-build design.
Key Specifications & Engineering Parameters¶
| Parameter | Specification |
|---|---|
| Category | Rainwater & Storage |
| Capital Cost | Low-cost / Locally fabricated |
| Primary Mechanism | Rooftop catchment channels rain through gutters and downspouts into a first-flush diverter, then into two connected 200-liter HDPE drums. Water is stored for non-potable uses like irrigation and washing, with overflow directed away from the foundation. |
| Target Scale | Household / Village Cluster |
| Standard Lifespan | 10 - 20 Years |
Engineering Trade-Offs¶
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Cross-Reference & Interactive Tools¶
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