rainwater overflow rainwater captured & used potable water used rainwater harvesting: cistern...

Rainwater Overflow

Rainwater Captured & Used

Potable Water Used

Rainwater Harvesting: Cistern Performance Simulation

Cistern Size (Thousands of Gallons)

1990-2010 Philadelphia Precipitation ( 40,000 sf roof )

Tota

l Wat

er (

Mill

ions

of

Gal

lons

)

3,000 Gallons Per Day Used For Toilet Flushing (Projected Estimate)

12,000 Gallon Tank

Rainwater Overflow

Rainwater Captured & Used

Potable Water Used

Rainwater Harvesting: Cistern Performance Simulation

Cistern Size (Thousands of Gallons)

1990-2010 Philadelphia Precipitation ( 40,000 sf roof )

Tota

l Wat

er (

Mill

ions

of

Gal

lons

)

4,000 Gallons Per Day Used For Toilet Flushing (Projected Estimate)

20,000 Gallon Tank

Rainwater Overflow

Rainwater Captured & Used

Potable Water Used

Rainwater Harvesting: Cistern Performance Simulation

Cistern Size (Thousands of Gallons)

1990-2010 Philadelphia Precipitation ( 40,000 sf roof )

Tota

l Wat

er (

Mill

ions

of

Gal

lons

)

5,000 Gallons Per Day Used For Toilet Flushing (Projected Estimate)

35,000 Gallon Tank

Rainwater Overflow

Rainwater Captured & Used

Potable Water Used

Rainwater Harvesting: Cistern Performance Simulation

Cistern Size (Thousands of Gallons)

1990-2010 Philadelphia Precipitation ( 20,000 sf roof )

Tota

l Wat

er (

Mill

ions

of

Gal

lons

)

1,500 Gallons Per Day Used For Toilet Flushing (Projected Estimate)

6,000 Gallon Tank

Rainwater Overflow

Rainwater Captured & Used

Potable Water Used

Rainwater Harvesting: Cistern Performance Simulation

Cistern Size (Thousands of Gallons)

1990-2010 Philadelphia Precipitation ( 20,000 sf roof )

Tota

l Wat

er (

Mill

ions

of

Gal

lons

)

2,000 Gallons Per Day Used For Toilet Flushing (Projected Estimate)

10,000 Gallon Tank

Rainwater Overflow

Rainwater Captured & Used

Potable Water Used

Rainwater Harvesting: Cistern Performance Simulation

Cistern Size (Thousands of Gallons)

1990-2010 Philadelphia Precipitation ( 20,000 sf roof )

Tota

l Wat

er (

Mill

ions

of

Gal

lons

)

2,500 Gallons Per Day Used For Toilet Flushing (Projected Estimate)

18,000 Gallon Tank