John Deere Green Tech
Rain Water Harvesting
Design Considerations
Important Statistics
1” Rain on 1 Square foot of catchment
Area = .6233 Gallons
Expect an 80% collection efficiency
General Rule 1” Rain on 1sf = .5
Gallons
Design Considerations
Calculating Collection Potential
Roof catchment area 4000 SF
.6233 Gallons x Season Rain x Sq Ft
catchment area x 80% = Gallons per
Season
.6233 x 16.59 x 4000 x 80
= 33,089 Gallons
For more information please contact your
Michigan, Ohio and Tennessee Distributor
The Macomb Group Engineered Services
dsavage@macombgroup.com