Full Product Manual
Table Of Contents
- Low-Volume Landscape Irrigation Design Manual
- FOREWORD
- CONTENTS
- 1 WHAT IS XERIGATION®?
- 2 THE DESIGN PROCESS
- 3 GATHER SITE DATA
- LOW-VOLUME DESIGN WORKSHEET: DENSE HYDROZONE
- Calculating Water Requirements
- BASE PLANTS IN DENSE HYDROZONES
- TABLE 3-1: MINIMUM FILTRATION REQUIREMENTS
- TABLE 3-2: DETERMINING THE SOIL TYPE
- TABLE 3-3: SOIL INFILTRATION AND WETTING PATTERN
- TABLE 3-4: PET RATES BASED ON CLIMATE
- Hydrozones
- Chapter 3 Review
- Figure 3-3: Sample Plot Plan—Doyle Residence
- Figure 3-4: Sample Site Data Worksheet—Doyle Residence
- Answer Key
- 4 DETERMINE PLANT WATER REQUIREMENTS
- Figure 4-1: Dense Hydrozone Design Worksheet
- Calculating Water Requirements
- TABLE 4-1: BASE PLANTS IN DENSE HYDROZONES
- Calculate K c
- TABLE 4-2: ESTIMATED SPECIES FACTORS
- TABLE 4-3: ESTIMATED DENSITY FACTORS
- TABLE 4-4: ESTIMATED MICROCLIMATE FACTORS
- Calculate Water Require-ment for Dense Plantings
- Calculate Water Requirement for Individual Plants in a Sparse Hydrozone
- Area of Plant Canopy
- Application Efficiency
- Water Requirement (GPD)
- Chapter 4 Review
- Answer Key
- 5 IRRIGATE BASE PLANTS
- Identifying the Base Plant
- Emission Devices
- Labor Cost Considerations
- TABLE 5-1: XERIGATION EMISSION DEVICE APPLICATION MATRIX
- Dense Plantings
- TABLE 5-2: LANDSCAPE DRIPLINE CHOICES
- TABLE 5-3: LANDSCAPE DRIPLINE SPACINGS AND FLOW RATES
- LATERAL LINE SPACING WORKSHEET
- Figure 5-3: Equal Lateral Line Spacing
- Landscape Dripline: A More Technical Approach
- TABLE 5-4: MINIMUM RECOMMENDED WATERING DEPTHS
- Emitter Spacing Versus Watering Depth
- TABLE 5-5: MAXIMUM EMISSION DEVICE SPACING (INCHES)
- TABLE 5-6: RECOMMENDED EMITTER SPACING
- Xeri-Sprays™
- Sparse Plantings
- Selecting Emitters
- TABLE 5-7: EMISSION DEVICE SELECTION
- Recommended Emitter Placement
- Calculating the Wetted Area
- TABLE 5-8: AREA WETTED BY EACH EMITTER (SQ. FT.)
- Chapter Review
- Answer Key
- 6 CALCULATE SYSTEM RUN TIME
- Calculate System Run Time
- Dense Plantings
- TABLE 6-1: EMITTER DISCHARGE RATES (EDR) FOR LANDSCAPE DRIPLINE IN INCHES PER HOUR*
- Sparse Planting
- 2.Determine Maximum Run Time
- TABLE 6-2: MAXIMUM SYSTEM RUN TIMES FOR COARSE SOIL
- TABLE 6-3: MAXIMUM SYSTEM RUN TIME FOR MEDIUM SOIL
- TABLE 6-4: MAXIMUM SYSTEM RUN TIME FOR FINE SOIL
- 3.Determine Irrigation Interval
- Chapter Review
- Answer Key
- 7 IRRIGATE NON-BASE PLANTS
- 8 SYSTEM LAYOUT
- Figure 8-1: Correct placement of emitters
- Figure 8-2: Emitter layout options
- Figure 8-3: Layout using poly drip tubing (Xeri-Tube 700)
- Figure 8-4: Layout using rigid PVC
- Using Inline Tubing
- Placing Supplemental Emitters
- Figure 8-5: Placement of supplemental emitters for shrubs or trees: top view
- Figure 8-6: Placement of supplemental emitters for shrubs or trees: section view
- System Configuration
- TABLE 8-1: SPACING OF STAKES AND STAPLES
- Figure 8-7: Landscape Dripline system configuration
- Irrigating Slopes
- Figure 8-8: Correct emitter placement on slope
- Figure 8-9: Correct placement of lateral pipe on slope
- Figure 8-10: Placement of Landscape Dripline on a slope
- Container Plants
- Figure 8-11: Micro-bubbler in a container plant
- Figure 8-12: Multiple emitters in a container plant
- Figure 8-13: Xeri-Bug emitter in a hanging basket
- 9 SYSTEM HYDRAULICS
- Water Pressure
- Figure 9-1: Determining static pressure based on elevation
- Calculating Pressure Loss
- Figure 9-2: Total flow worksheet
- Figure 9-3: Completed total flow worksheet
- Figure 9-4: Flow rate worksheet
- TABLE 9-1: MAXIMUM FLOW RATES
- Determine Maximum Lateral Lengths
- TABLE 9-2: MAXIMUM LATERAL LENGTHS
- TABLE 9-3: MAXIMUM LATERAL LENGTH XT-700
- Pressure Loss Calculation
- TABLE 9-4: MINIMUM/MAXIMUM FLOWS FOR PROPER VALVE PERFORMANCE
- TABLE 9-5: MINIMUM FLOW REQUIREMENT FOR PROPER VALVE PERFORMANCE*
- TABLE 9-6: FRICTION LOSS CHARACTERISTICS OF XERI-TUBE 700
- High Pressure
- Maximum Inlet Pressure
- TABLE 9-7: RAIN BIRD PRESSURE REGULATORS
- Hydraulics Worksheet
- 10 INSTALLATION, MAINTENANCE AND TROUBLESHOOTING
- A FORMULAS FOR XERIGATION DESIGN
- B PET DATA
- C FRICTION LOSS AND PERFORMANCE DATA
- D XERIGATION PLANNING FORMS
- E GLOSSARY
- F XERIGATION PRODUCT LINE
- INSTALLATION DETAILS
- BIBLIOGRAPHY
- INDEX
- Contact Information
Chapter Review
To check your understanding of the material covered in Chapter 7, complete this
review. The review is based on the partially completed hydrozone worksheet
(Figure 7-1) which is located on the next page.
1. Calculate the total flow needed to irrigate each of the ferns within the system
run time.
2. We have determined that Xeri-Bubblers set for an umbrella pattern are the
most effective way to irrigate the ferns. If we use two Xeri-Bubblers for each
fern, what should the flow for each bubbler be?
Page 52 Chapter 7
EXAMPLE
Referring to Table 7-1, you select four 5.0 GPH Pressure-Compensating
Modules to water the crepe myrtle. These four devices will provide a com-
bined flow of 20.0 GPH, which is somewhat more than the calculated flow of
16.5 GPH. The preferred use of four emission devices versus one or two flow
devices will be explained in the next chapter.
It is important to consider the soil type and how best to avoid potential runoff in
clay-like soils. It may be best to create some type of reservoir at the base of plants
to capture the water from higher flow emission devices, such as the PC-10, 10
GPH Pressure Compensating Module.
Complete this process of calculating flow rates and selecting emission devices for
each non-base plant. Refer to chapter 5 as well as subsequent chapters for
information about placement of the emission devices.
TABLE 7-1: EMISSION DEVICE FLOW RATES
Emission Device Available Flow Rates
Xeri-Bug Single Outlet Pressure
Compensating Emitter
0.5, 1.0, 2.0 GPH
Shrub Xeri-Bug Single Outlet
Pressure Compensating Emitter
1.0, 2.0 GPH
Pressure Compensating Modules 5.0, 7.0, 10.0, 12.0,18.0, 24.0 GPH
Multi-Outlet Xeri-Bug; Multi-Outlet
Shrub Xeri-Bug
1.0 GPH per outlet (up to 6 outlets)
Xeri-Bubblers Streams: 0-13.0 GPH, Umbrella: 0-35.0 GPH
Xeri-Sprays 0-31.0 GPH
Landscape Dripline 0.6, 0.9 GPH
Xeri-Pops w/ Multi-Port Nozzle 10.5, 21.0, 31.5, 42.0 GPH
Xeri-Pops w/ PCS Screens and
choice of MPR Nozzle
0.1, 0.2, 0.3, 0.4, 0.6 GPM
®