Calculate Roof Catchment
1 hourGallons = inches rain × sq ft roof × 0.623 conversion.
Field context
This workflow is part of 1 niche field
Learn irrigation rainwater harvest from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
Gallons = inches rain × sq ft roof × 0.623 conversion.
Size tank for dry spell length and demand.
Gravity head or small pump pressure drip.
Verify rain harvesting legal some western states regulated.
Industry best practices for rain harvest.
First flush diverter — roof bird dirt.
Dark tank algae — opaque best.
Gravity simplest no pump fail.