Translations:Regenwassernutzung/202/en

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Example 1

Calculation of rainwater yield
* Single-family house with 100 m² roof area and clay-brick roof
* Annual precipitation = 750 mm/year
* Runoff coefficient = 0.8
* Filter efficiency = 0.98
=>Rainwater yield = 100 m² x 750 mm/year x 0.8 x 0.98 x 10-3 = 59 m³/year