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1. Locknut
•
Turn the knob of the throttle valve counterclockwise
to decrease spray-system pressure
Sprayer-system pressure displays on the pressure
gauge
(Figure
43). When the spray nozzles are open,
sprayer-system pressure decreases slightly; adjust
throttle valve to compensate for the drop in pressure.
Mixing Product
Calculating the Average Application Rate
To determine about of product to mix for solution of
chemical in the tank, you need to understand what
nozzle application rate of your machine (the factory
installed lavender nozzle tip application rate is 1.3
L/93 m
2
(1 / 3 gallon per 1,000 ft
For example, a product may specify an application
rate range of 33 to 44 ml/93 m
ft
2
). When calibrating the sprayer, use the formula that
follows to calculate the average application rate:
Average Application Rate Formula
[lowest application rate] +
[highest application rate]
[sum rate] / 2
Example: 33 + 44 ml (1.1 + 1.5 oz) = [77 ml (2.6 oz)
sum rate]; 77 ml / 2 (2.6 oz / 2) =38.5 ml/93 m
per 1,000 ft
2
)―the average application rate value
Figure 42
2. Throttle valve knob
(Figure
Figure 43
2
).
2
(1.1 to 1.5 oz per 1,000
= [sum rate]
= average application rate
Calculating the Amount of Product for a
Solution of Chemical
1.
Multiply the average product application rate by
the 1-gallon nozzle tip factor to determine the
1-gallon application rate.
Example: median application rate value—38
ml/93 m
3 (lavender nozzle tip—nozzle tip factor) = 3.9
(adjusted application rate)
2.
Multiply the 1-gallon application rate by the
g311521
amount of chemical solution that you need to
add to the spray tank.
Example: 3.9 (adjusted application rate) x
gallons needed. If you are preparing a 114 L (30
US gallon) solution of chemical, use 3.5 L (117 fl
42).
oz) of product (3.9 x 30) for 114 L (30 US gallon)
of water.
Nozzle Tip/Application Rate and Tip Factor
Chart
Average
product
application
rate
(example)
38 ml/93 m
(1.3 fl oz per
1,000 ft
2
)
g312649
38 ml/93 m
(1.3 fl oz per
1,000 ft
2
)
38 ml/93 m
(1.3 fl oz per
1,000 ft
2
)
38 ml/93 m
(1.3 fl oz per
1,000 ft
2
)
38 ml/93 m
(1.3 fl oz per
1,000 ft
2
)
2
(1.3 oz
38
2
(1.3 fl oz per 1,000 ft
Nozzle tip/
Nozzle
application
tip
rate
factor
2
Yellow 1.0
(x) 4
L/93 m
2
(0.27
or 1/4 US
gallon/ 1,000
ft
2
)
2
Lavender 1.3
(x) 3
L/93 m
2
(0.34
or 1/3 US
gallon/ 1,000
ft
2
)
2
Red 2.0 L/93
(x) 2
m
2
(0.54
or 1/2 US
gallon/ 1,000
ft
2
)
2
Brown 2.9
(x) 1.3
L/93 m
2
(.76
(3/4) US
gallon/ 1,000
ft
2
)
2
Gray 3.8 L/93
(x) 1
m
2
(1 US
gallon/ 1,000
ft
2
)
2
) of 1.1 to 1.5) x
Water
Product
in the
per 114
sprayer
L (30 US
tank
gallon)
(example)
(example)
(x) 114 L
4.6 L (156
(30 US
fl oz)
gallons)
(x) 114 L
3.5 L (117
(30 US
fl oz)
gallons)
(x) 114 L
2.3 L (78
(30 US
fl oz)
gallons)
x 114 L
1.5 L (51
(30 US
fl oz)
gallons)
(x) 114 L
1.2 L (39
(30 US
fl oz)
gallons)
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