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
HYDRAULICS WORKSHEET
Hydrozone:
Flow (GPM):
CALCULATE: PSI
1. Static pressure at water source
Enter PSI
2. Net change in elevation from
water source to end of tubing
run
Multiply feet (+,-) by .433
3. Friction loss in mainline pipe
from water source to
hydrozone
Refer to friction loss tables in Appendix C
4. Friction loss due to fittings in
mainline pipe from water
source to valve
Usually estimate 15-20% of main line PSI
loss.
5. Friction loss due to control
zone
Refer to Table 9-5
6. Friction loss in lateral PVC pipe
from valve to top of riser in
hydrozone
Refer to friction loss tables in Appendix C
7. Friction loss due to fittings in
lateral PVC pipe from valve to
hydrozone
Usually estimate 20-25% of lateral line loss.
TOTAL PRESSURE AT INLET
Should be at least 30 PSI
Hydraulics Worksheet
Designing a low-volume irrigation system with proper hydraulics will help keep
emission devices operating properly. As a rule, you should design the system so
that at least 15 PSI of water pressure is available for flushing at the end of each
tubing run. This pressure can drop to 8.6 PSI for Landscape Dripline inline
tubing provided no supplemental emitters are used. The following worksheet
can help you organize your calculations for system hydraulics.
Page 72 Chapter 9
TABLE 9-7: RAIN BIRD PRESSURE REGULATORS
Model Size Outlet Pressure Label Color Flow Range
PSI-L30X-075 3/4" 30 PSI/2,0 BARS Red 0.1-5.0 GPM
PSI-M30X-075 3/4" 30 PSI/2,0 BARS Yellow 2.0-22.0 GPM
PSI-M40X-075 3/4" 40 PSI/2,8 BARS Yellow 2.0-22.0 GPM
PSI-M50X-075 3/4" 50 PSI/3,5 BARS Yellow 2.0-22.0 GPM
PSI-M40X-100 1" 40 PSI/2,8 BARS N/A 2.0-22.0 GPM
PSI-M50X-100 1" 50 PSI/3,5 BARS N/A 2.0-22.0 GPM
Figure 9-5: Hydraulics Worksheet
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