Toro Spray Master Series - Page 38

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Figure42
1.Locknut2.Throttlevalveknob
•Turntheknobofthethrottlevalvecounterclockwise
todecreasespray-systempressure(Figure42).
Sprayer-systempressuredisplaysonthepressure
gauge(Figure43).Whenthespraynozzlesareopen,
sprayer-systempressuredecreasesslightly;adjust
throttlevalvetocompensateforthedropinpressure.
g312649
Figure43
MixingProduct
CalculatingtheAverageApplicationRate
Todetermineaboutofproducttomixforsolutionof
chemicalinthetank,youneedtounderstandwhat
nozzleapplicationrateofyourmachine(thefactory
installedlavendernozzletipapplicationrateis1.3
L/93m
2
(1/3gallonper1,000ft
2
).
Forexample,aproductmayspecifyanapplication
raterangeof33to44ml/93m
2
(1.1to1.5ozper1,000
ft
2
).Whencalibratingthesprayer,usetheformulathat
followstocalculatetheaverageapplicationrate:
AverageApplicationRateFormula
[lowestapplicationrate]+
[highestapplicationrate]
=[sumrate]
[sumrate]/2
=averageapplicationrate
Example:33+44ml(1.1+1.5oz)=[77ml(2.6oz)
sumrate];77ml/2(2.6oz/2)=38.5ml/93m
2
(1.3oz
per1,000ft
2
)―theaverageapplicationratevalue
CalculatingtheAmountofProductfora
SolutionofChemical
1.Multiplytheaverageproductapplicationrateby
the1-gallonnozzletipfactortodeterminethe
1-gallonapplicationrate.
Example:medianapplicationratevalue—38
ml/93m
2
(1.3ozper1,000ft
2
)of1.1to1.5)x
3(lavendernozzletip—nozzletipfactor)=3.9
(adjustedapplicationrate)
2.Multiplythe1-gallonapplicationratebythe
amountofchemicalsolutionthatyouneedto
addtothespraytank.
Example:3.9(adjustedapplicationrate)x
gallonsneeded.Ifyouarepreparinga114L(30
USgallon)solutionofchemical,use3.5L(117
oz)ofproduct(3.9x30)for114L(30USgallon)
ofwater.
NozzleTip/ApplicationRateandTipFactor
Chart
Average
product
application
rate
(example)
Nozzletip/
application
rate
Nozzle
tip
factor
Water
inthe
sprayer
tank
(example)
Product
per114
L(30US
gallon)
(example)
38ml/93m
2
(1.3ozper
1,000ft
2
)
Yellow1.0
L/93m
2
(0.27
or1/4US
gallon/1,000
ft
2
)
(x)4(x)114L
(30US
gallons)
4.6L(156
oz)
38ml/93m
2
(1.3ozper
1,000ft
2
)
Lavender1.3
L/93m
2
(0.34
or1/3US
gallon/1,000
ft
2
)
(x)3(x)114L
(30US
gallons)
3.5L(117
oz)
38ml/93m
2
(1.3ozper
1,000ft
2
)
Red2.0L/93
m
2
(0.54
or1/2US
gallon/1,000
ft
2
)
(x)2(x)114L
(30US
gallons)
2.3L(78
oz)
38ml/93m
2
(1.3ozper
1,000ft
2
)
Brown2.9
L/93m
2
(.76
(3/4)US
gallon/1,000
ft
2
)
(x)1.3
x114L
(30US
gallons)
1.5L(51
oz)
38ml/93m
2
(1.3ozper
1,000ft
2
)
Gray3.8L/93
m
2
(1US
gallon/1,000
ft
2
)
(x)1(x)114L
(30US
gallons)
1.2L(39
oz)
38