Design Guide
Design Worksheet
Use this worksheet to determine the type and quantity of product
required for the system.
DW1 Allowable Water Supply ____________ GPM
DW2 Dynamic Pressure ____________ PSI
Typical Design Steps
Step 1: Obtain or draw a scaled plan of the area to be irrigated.
Step 2: Locate the point of connection on the scaled plan.
■ Determine the water meter size and/or allowable volume
of the water source: ______ GPM (DW1)
■ Verify the regulated dynamic water pressure: ______ PSI (DW2)
At this point in a typical installation, it would be
necessary to select a pressure regulating device to
establish/control the pressure in the system. Since there’s
a number of factors that can apply to a design (slope, length
of run, dripline type — pressure-compensating vs.
non-pressure-compensating), a regulated dynamic pressure of
25 PSI has been chosen for this example.
Landscape Dripline Design _____________________________________________________________
■ Typical Design Procedures
Zones*
1 2 3 4 5 6
DW3
Soil Texture
DW4
Plant Type
DW5
Slope %
DW6
Dripline Product
DW7
Emitter Spacing
DW8
Max. Dripline Lateral
Spacing
DW9
Nominal Flow Rate
DW10
Actual Flow Rate
DW11
Max. Run Length
DW12
Exact Lateral Spacing
DW13
Zone Flow (GPM)
* The number of zones may vary depending on the specic needs of each installation. TABLE 2.1
NOTES:
10