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Overspray |
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Spray irrigation devices require
frequent maintenance and adjustment to keep their
spray directed where you want it. When the heads are
placed directly adjacent to hardscape, and the
occasional effects of wind are added, overspray is
almost impossible to avoid. |
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Santa
Monica Municipal Code 7.16.020 prohibits irrigation
overspray and/or runoff onto hardscapes such as
gutters, streets or alleys. |
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Try to limit use of
spray-type irrigation as much as possible: |
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1 |
If your landscape is composed of individual plants, such as shrubs, rather than continuous groundcover like turf; convert your spray system to drip irrigation. |
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2 |
Re-landscape with individual plants (one-gallon size or larger) and convert the spray system to drip irrigation. |
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3 |
Replace all the plant material with a permeable, non-living groundcover such as gravel, rock mulch or decomposed granite that will not require irrigation.
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Install a buffer strip of permeable, non-living groundcover such as gravel, rock mulch or decomposed granite between the plant material and the hardscape and move the sprinkler heads inward to the edge of the planting bed. (See drawing below) Because of the possibility of wind and
improper adjustment, this solution is not fool-proof.
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5 |
Install a subsurface irrigation system such as ECS
or Wick.
See
Landscape
Resources. Note that these systems are
relatively costly. |
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