Acres Drained:
% Slope or Grade:
Drainage Coefficient:
General Drainage Coefficients (inches/24 hours)*
|
Without surface inlets
|
|
|
Soil Type
|
Field Crops
|
Truck Crops
|
|
|
|
Mineral
|
3/8 to 1/2
|
1/2 to 3/4
|
|
|
|
Organic
|
1/2 to 3/4
|
3/4 to 1-1/2
|
|
|
With Surface Inlets
|
|
Soil Type
|
Field Crops
|
Truck Crops
|
|
Blind Inlets
|
Open Inlets
|
Blind Inlets
|
Open Inlets
|
|
Mineral
|
3/8 to 3/4
|
1/2 to 1
|
1/2 to 1
|
1 to 1-1/2
|
|
Organic
|
1/2 to 1
|
3/4 to 1-1/2
|
3/4 to 2
|
2 to 4
|
Note: Drainage coefficient = Inches of water removal in one day.
Results
Liquid Flow
Gallons per Minute(GPM):
Cubic Feet of Water per Second (CFS):
Acre inches per day:
Recommended Pipe Size
Poly Smooth-Line® Dual Wall Pipe:
Poly-Drain® Single Wall Tubing:
