Design Guide

■ Step 7: Calculate the total estimated gallons per minute (GPM) per zone
by using one of the two following methods. Be sure to use the
total estimated dripline per zone (see Step 6-A above).
Zone flow: _________ GPM (DW13)
- Determine the total number of drip emitters in each zone,
then calculate the flow per zone based on the total flow rate
of all drippers.
Step A:
Number of drippers =
Step B:
Total number of drippers =
OR
- Calculate zone flow by multiplying the total footage of
dripline in hundreds (footage/100) by the flow per 100 feet
obtained from the following table.
_____________________________________________________________Landscape Dripline Design
■ Typical Design Procedures
NOTES:
(within the zone)
Dripline footage required (6A above) x 12”
Dripline emitter spacing (inches)
Flow per zone in GPM
x dripper flow rate (GPH)
60 (minutes)
FLOW RATE PER 100 LINEAR FEET (@ 20 PSI)
Product Nominal Flow
Emitter
Spacing
Actual Flow/100 ft.
GPH GPM
DL2000®
and Drip In®
0.5 GPH
0.5 GPH
1.0 GPH
1.0 GPH
12”
18”
12”
18”
53.00
35.33
102.00
67.99
0.88
0.59
1.70
1.13
Microline
and Soakerline™
0.5 GPH
0.5 GPH
6”
12”
124.00
62.00
2.06
1.03
TABLE 2.7
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