Group BAgave Hall & Bradshaw Hall

Exterior Water ProjectRandall Martin

TJ LawrenceJacob Fox

Rance ManaloKevin Healy

Agave and BradshawIrrigation

Plant watering systemsLandscaping

“Xeriscaping”Water Harvesting

Collecting unused rain water

ProblemsNon-desert vegetationChaotic watering systemNo water harvestingNo records

Main GoalsSelf sustained Make areas enjoyableKeep cost downEliminate waste

IrrigationWater Management

Why drip?Almost no water loss due to wind or

evaporationReduces weed growthReduce water use by up to 70%Reduce cost of upkeepGov’t offers rebates to reduce cost

System ComponentsRain sensor - $20

Moisture sensor kit - $130

Flow meter - $55

ET Manager - $500

Installation Cost vs. SavingsCost roughly 2.29$ per sq/ft to install if

contracted outPerimeter average about 4500 sqft and each

courtyard roughly 5700 sqft, Approx. $21,000 to outsource

Without hiring out $50 per 20 plantsSprinkler system to a drip system could save

$70 per every $475. No current record of water use. Future

savings are unknown

City of Chandler Rebates

Irrigation ControlsHunter IMMS

Electronic ControlsPC Based Software Package that makes

central controls affordable, usable, and comprehensible

Graphically based command and control program

An optional ET program software that provides weather-based irrigation with soil moisture models that use inexpensive ET sensors.

Electronic Controls cont.Full range of communications options,

including Ethernet, GPRS mobile, dial-up telephone, UHF radio, and hardwired cables.

Application is compatible with Windows XP through Windows

FeaturesIMMS reports all alarms such as over

currents and flow violations with individual date and time stamp messages.

Ability to create graphic map where you can see all the irrigation locations

Evapotranspiration system creates water saving system, can track climate history according to the sensors.

Landscaping• Native plants• Low water use plants• Shade trees• Grass Vs. Gravel

Main CourtyardMesquite

Red Bird of Paradise

Echinocereus

Main Courtyard cont.Mesquite offers plenty of shade to lower

temperatureRed Bird of Paradise is colorful shrubberyEchinocereus adds color and iconic AZ cactusAll plants are low water use

East CourtyardPlanting area in shape of U.S.Brick pavers separate regionsEach region depicted by plants from that

areaEducational, enjoyable, low-cost

East Courtyard cont.Southwest region: Autumn Sage

2 feet tall - $20Northwest region: Harry Honeysuckle

1 foot tall - $6Mid-west: Japanese Barberry

4 feet tall - $50South east: Spicebush Shrubs

5 feet tall - $40North east: Caroline Lupine

4 feet tall - $25

West CourtyardDesert botanical gardenServe to teach about sustainable plants in AZShaded via MesquiteRevitalize an otherwise dismal area

(Orange things not plants, just ideas for decorating)

Water HarvestingCollecting otherwise wasted rain water

Rain water

• Roof is roughly 47,400 square feet

• Chandler averages 9.27 inches

• Roughly 273,910 gallons a year goes unharnessed

• Enough water to sustain all plants

Harvesting SystemWater flows into temp. tank

Pumped and filtered to main tank

Stored until needed

Water taken as needed

Excess water rerouted for other use

Water Harvesting Materials1000 gallon tank - $489.99 – plastic-mart.com5000 gallon tank - $2,323.95 – plastic-

mart.com½ horsepower, 10GPM pump w/ built in filter-

$353.27 – plumbersstock.com1 inch diameter PVC pipe - $3.67 per 10 feet

– lowes.com

Total Cost

• Low end cost estimate of $20,000• High end estimate $100,000• High estimate buys best of the best of everything• Upkeep is reduced maximum amount

Snoop says - Save yo drizzle and drip it like its hot