Rainwater Catchment

• Goals - gutters, first flush filter, etc.

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Catchment Calculation

Harvested water (gallons) = catchment area (square feet) [roof footprint] x rainfall depth (inches) x 0.623 [conversion factor]

Harvested water (liters) = catchment area (square meters) [roof footprint] x rainfall depth (millimeters)

https://www.watercache.com/resources/rainwater-collection-calculator

Water Usage

In Missouri, the average family's indoor water usage is about 50 gallons per person per day. Flushing the toilet accounts for about 42 percent of the total, the highest percent of indoor water usage. (There are several solutions to mitigate or eliminate water usage for the flushing of toilets.)

https://energy.mo.gov/energy/consumers/information-resources/water-usage