Design Guide

Using 1/4” dripline
Toro’s two 1/4” dripline offerings, Microline and Soakerline, are
ideal for small, tight areas because of their flexibility. They can
also be used to loop around trees and bushes. They’re often used
to retrofit sprinkler risers and bubblers to subsurface drip because
they easily attach to a multi-outlet manifold.
Spacing Guidelines
Dripline Placement From Edges
Consideration of dripline location is necessary when laying out
zone edges. Hardscape materials act as heat collectors and cause
landscape edges to dry out before the center of the landscape,
making it essential to compensate by placing the first driplines no
more than two to four inches from the landscape edge. In uncon-
tained landscape areas, start the first dripline two to four inches
outside of the planted area. In subsurface applications specifically
watering turf, add dripline over the supply and flush manifolds to
ensure that these edges have adequate moisture coverage.
Wind
As with all total-coverage irrigation systems, attention must be giv-
en to windward turf edges in high-wind areas to prevent brown-
ing. Place the first dripline no more than two to four inches from
the edge of hardscaped areas or two to four inches outside the
turf edge in uncontained landscape areas. Add an extra dripline six
inches from the first line between the first and second lateral lines
on the windward lateral edge.
_____________________________________________________________Landscape Dripline Design
■ General Design Parameters
NOTES:
Soil Type
Emitter
Spacing
Row
Spacing
Emitter
Flow
Burial
Depth*
Medium Sand
• Trees/Shrubs/Groundcover
• Turf*
12”
12”
18”
12”
1.0 GPH
1.0 GPH
4”
4”
Loam
• Trees/Shrubs/Groundcover
• Turf*
18”
12”
18”
18”
1.0 GPH
1.0 GPH
6”
4”
Clay
• Trees/Shrubs/Groundcover
• Turf*
18”
18”
24”
18”
0.5 GPH
0.5 GPH
6”
4”
* For Subsurface Only
TABLE 1.2
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