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Efficient Irrigation via “ Smart” Control
Rick Foster
Sr. Product Manager
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The World’s Water Crisis
There is no new water.
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Current Water Issues
• The cost of water & power is rising annually
• As the population grows, limited water sources strain to
keep up with demand = DROUGHT
• In many cities, water delivery systems were designed to
service a much smaller number of people than is required
today = INFRASTRUCTURE IS STRAINED
• Irrigation is one the most visible forms of water use
and is usually the first to be regulated in a drought
or water shortage condition
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Current Water Issues
• A recent report on the irrigation industry stated that
automatic irrigation systems are one of the largestcauses of over-watering:
– The controller on the typical irrigation system is adjusted an
average of 1-1/2 times per year and many are never adjusted
– Controllers are typically set to apply the peak irrigation
requirement of the year
– The average automatic irrigation system applies 2 to 3 times
the amount of water required by the landscape
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Current Water Issues
• Current politics of irrigation:
– Water bans & restrictions
– Tiered water rates
– Lawn size and landscape restrictions
– Mandatory irrigation audits
– Mandatory “smart” controllers
– Water-efficient product rebates
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The need to deliver superior results with less watercreates exciting new business opportunities.
As the industry leader in water-efficient irrigation, Rain
Bird can help your business thrive.
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Efficient Irrigation via “ SMART” ControlKey Concepts
1. Evapotranspiration – Plant Water Need Based on
Changing Weather Conditions
2. Management Allowed Depletion (MAD) – Proven
Method of Irrigation Scheduling
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Efficient Irrigation via “ SMART” ControlKey Concepts
Evaporation
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Efficient Irrigation via “ SMART” Control
Key Concepts
Transpiration is the process by
which plants return water to the
atmosphere. After absorbing waterfrom the ground, plants release
water through their leaves.
Transpiration helps plants stay cool,in the same way perspiration keeps
humans and animals cool.
Plant Transpiration
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Efficient Irrigation via “ SMART” Control
Key Concepts
• Loss of water from
vegetation though thecombined processes of
soil evaporation and
plant transpiration
Evapotranspiration (ETo)
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Efficient Irrigation via “ SMART” Control
Key Concepts
• Temperature
• Wind
• Humidity
• Solar Radiation
Weather Factors ThatInfluence The ETo Amount
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Efficient Irrigation via “ SMART” Control
Key Concepts
Historical ETo by Month
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Efficient Irrigation via “ SMART” ControlKey Concepts
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Efficient Irrigation via “ SMART” Control
Key Concepts
• Maximum % of Plant Available Water (PAW) taken outof soil before irrigating
– % removed; NOT % remaining
• MAD provides a safety buffer
– Broken mains
– Controller downtime
– Weather variations
• Varies by soil type – MAD Ranges from 35% to 50%
Management Allowed Depletion (MAD%)
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Efficient Irrigation via “ SMART” Control
Key Concepts
Saturation
Field Capacity
Management Allowed
Depletion (~50% ofPAW)
Permanent Wilt Point
Gravitational Water •Water Run-off
•Heavy Nutrient Loss
•Root Rot
Plant Available Water
(PAW)
Wasted Water
Plant Stress
Plant Death
Parched
Control Range
Soil
Reservoir
Anatomy of Soil Water Content
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“ Smart” irrigation controllers work by monitoring andusing information about site conditions (such as soil
moisture, rain, wind, slope, soil, plant type, and more),
and applying the right amount of water to the
landscape based on those factors.
IA Association SWAT website: ht tp://irrigation.org/SWAT/Industry/landscape-contractors/
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Efficient Irrigation via “ SMART” Control
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Efficient Irrigation via “ SMART” Control
• Climate - Based Systems
–Central Control
–ET Controllers
• Site Data – Based Systems
–Soil Moisture Sensors
–Rain/Freeze Sensors
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ET Manager
Commercial grade
retro-fit product
ESP-LXM Contro ller
with ET Cartridge
Commercial grade,
modular, ET controller
ESP-SMT
Residential or Light
Commercial Smart
Controller
Climate-Based SystemsET Control
NEW
IQ/Site Control/Maxicom
Residential or Light
Commercial Smart
Controller
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ET Manager
Commercial grade
retro-fit product
ESP-LXM Contro ller
with ET Cartridge
Commercial grade,
modular, ET controller
ESP-SMT
Residential or Light
Commercial Smart
Controller
NEW
IQ/Site Control/Maxicom
Residential or Light
Commercial Smart
Controller
Climate-Based SystemsET Control
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Climate-Based SolutionsCentral Control
Multi-Site
Maxicom2
IQ
Single-Site
SiteControl
MDC
Larger Sites,
Fully-Automatic
Operation
Smaller Sites,Semi-Automatic
Operation
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Climate-Based SolutionsCentral Control
• Maxicom2 Weather StationWS-PRO
– Collects and stores weather
data – Data communicated to central
control
– Runtimes adjusted according
to daily ET and rainfall
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ET Manager
Commercial grade
retro-fit product
ESP-LXM Contro ller
with ET Cartridge
Commercial grade,
modular, ET controller
ESP-SMT
Residential or Light
Commercial Smart
Controller
NEW
IQ/Site Control/Maxicom
Residential or Light
Commercial Smart
Controller
Climate-Based SystemsET Control
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ET Manager: Where to Use it
• ET Manager Indoor (ETMi): Any non-
battery operated controller in lightcommercial and commercial
applications
• ET Manager Cartridge: Any Rain Bird LX
Controllers
24
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How ET Manager Works
25
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ET Manager
Commercial grade
retro-fit product
ESP-LXM Contro ller
with ET Cartridge
Commercial grade,
modular, ET controller
ESP-SMT
Residential or Light
Commercial Smart
Controller
NEW
IQ/Site Control/Maxicom
Residential or Light
Commercial Smart
Controller
Climate-Based SystemsET Control
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Rain Bird ESP-SMTSmart Modular Control System
“ ESP” – Extra Simple Programming
Continues the legacy of the Rain Bird ESP
family that customers have embraced due
to its “ease of use” and high quality
combined with
“ SMT” – Smart Modular
TechnologyUses proven scientific principles
to automatically optimize theirrigation schedule in order to
maintain healthy plant material
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Rain Bird ESP-SMTSmart Modular Control System
ESP-SMT Smart Control System
Comprised of:
1. On-Site ESP-SMT Weather Sensor
2. ESP-SMT Smart
Modular Controller
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Rain Bird ESP-SMTSmart Modular Control System
• On-site weather sensor
• Rain Measurement Capabilities
• Automatic "Cycle and Soak"
• Irrigation Schedule optimizing using "MAD" Approach
• Separate Grow-In and Established Modes
• Default or Custom/Advanced Mode
Key “ Smart” Features
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Rain Bird ESP-SMTSmart Modular Control System
Site Specific
•Temperature
• Rainfall Shut-off
• Rainfall Measurement
Zip Code Specific
• Humidity Avg. by Month
• Wind Speed Avg, by Month
• Solar Radiation Calculation
Zone Specific Parameters
• Soil Type / Slope
• Sprinkler Type – Applic. Rate
• Plant Type•Species Factor
•Root Depth
• Plant Density
• Shade factor
+ +
How the System Works…
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Site Data - Based SystemsRainfall and Freeze Sensors
RSD WiredRain Sensor WR2 WirelessRain/Freeze
Sensor
Rain CheckRain Sensor
NEW
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Rain Bird’s WR2 Wireless Rain SensorFeatures and Benefits
Available as:
Rain Sensor
Rain Freeze Sensor
Benefits of the WR2: Installs Faster
Easier to Use
Superior Reliability
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Rain Bird’s WR2 Wireless Rain SensorInstalls Faster
LCD screen displays all your settings at a glance
Battery Life
Signal Strength Rainfall Levels and Set PointsTemperature Levels and Set Points
Programmable irrigation modes
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Rain Bird’s WR2 Wireless Rain SensorInstalls Faster
Shows signal strength on the controller interface AND the sensor
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Rain Bird’s WR2 Wireless Rain SensorInstalls Faster
• WR2’s mounting bracket easily
mounts on walls or gutters
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Rain Bird’s WR2 Wireless Rain Sensor
Easier to Use and Superior Control
Six rainfall set points between 1/8”
and 1/2” inch
Rainfall adjustment is important
depending on your soil type
“Quick Shut Off” feature
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Three adjustable temperature set points
Why is adjustability important?
Rain Bird’s WR2 Wireless Rain Sensor
Easier to Use and Superior Control
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Rain Bird’s WR2 Wireless Rain SensorEasier to Use
Antennas are contained within the sensor and
controller interface
Homeowners will prefer this neat look compared
with external wire antennas
Rain Bird’s WR2
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Signals are updated every 45 seconds
Overcomes most line of sight restrictions for freedomin sensor placement
Communication distance of up to 700 feet line-of-
sight
Rain Bird’s WR2 Wireless Rain Sensor Superior Reliabil ity
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Site Data - Based SystemsSoil Moisture Sensor
SMRT-Y Soil
Moisture Sensor
Add-on device that
makes any
controller “smart”
NEW
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SMRT-Y Soil Moisture Sensor Overview
•
Add-on device that turns anystandard controller into a“ smart” controller
• Typical water savings of 40% or
more
• Advanced sensor technologyprovides accurate soil moisture
readings even as soil conditionschange
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SMRT-Y Primary Function
Controller SMRT-Y Controller
Interface Unit
Valves
SMRT-YMoisture Sensor
….
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Single Sensor Feedback Systems
Sensor Location
• Choose a full-sun location
•
Avoid low spots where water typically collects• Avoid high spots where drainage may not be
representative of the site
•
Avoid locations exposed to heavy foot traffic• Avoid location near hard-scapes
• Avoid locations which are irrigated by more than one
zone
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Simplified Sensor Installation
1) Select a location for the sensor
2) Install the sensor 3 to5 in. below thesurface
3) Connect the sensor to thenearest valve
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Setting the Moisture Threshold
• Set Manually
– Use average value of the site’s Management Allowable Depletion(MAD)
– Calculate 80% of the known or estimated field capacity
• Use the SMRT-Y Auto-set feature
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Watering History
• Displays the last seven
watering cycles
• A drop appears if watering was
allowed
• “Today” indicates the most
recent cycle
• Watering history updates 30
minutes after the last cycle
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University of Florida Study:
45%-73% Water Savings
• Controller scheduled to irrigate 2 days per
week
• Less than normal rainfall during test
period
• Expect even greater savings when….
– Higher rain fall during test period
– Irrigation > 2 days/week
Control
WR2
SMS1
SMS2 + WR2
Rainfall
Legend
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Questions?