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Rainwater Harvesting Calculator
Calculate annual rainfall collection and tank sizing for Australian homes using BOM state averages.
AU Rainfall Data
Tank Sizing
Roof Catchment Area (m²)
State
QLD — Brisbane (1,200mm/yr)
NSW — Sydney (1,213mm/yr)
VIC — Melbourne (648mm/yr)
WA — Perth (728mm/yr)
SA — Adelaide (534mm/yr)
TAS — Hobart (626mm/yr)
NT — Darwin (1,727mm/yr)
ACT — Canberra (616mm/yr)
Tank Size (litres)
Daily Household Use (litres)
Calculate
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Calculate annual rainfall collection and tank sizing for Australian homes using BOM state averages.
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