Rainwater Harvesting System¶

Rainwater & Storage • Est. CapEx: $30 USD • Lifespan: 7–15 Years

Technical Overview¶

A traditional technique for collecting and storing rainwater from rooftops or other surfaces for domestic, agricultural, or stormwater management use. It provides an alternative water source in areas where groundwater is scarce or contaminated.

Key Specifications & Engineering Parameters¶

Parameter	Specification
Category	Rainwater & Storage
Capital Cost (CapEx)	$30 USD
Power / Energy	100% Gravity / Zero Power
Target Scale	Household (5–10 people)
Standard Lifespan	7–15 Years
Technology Maturity	Commercially Available
Primary Mechanism	Rainwater is collected from a catchment surface (e.g., roof), conveyed via gutters and downspouts through a debris filter, and stored in a cistern or tank. The stored water can be used directly (non-potable) or treated for potable use, reducing runoff and conserving water supplies.

Engineering Trade-Offs¶

✅ Advantages⚠️ Limitations

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Cross-Reference & Interactive Tools¶

Need to evaluate this technology for your specific field site? Run the WhatWater.info Selector Engine to compare it against 100+ alternative solutions.