North Star 5042373 Owner's Manual page 28

8. Begin 1. Decide if agitation is required. Some formulations of liquid pesticides do
agitation if
needed This sprayer is equipped with an agitator that should be used when spraying
pesticides classified as "flowable" ("F" or "L"), "wettable powder" ("WP" or "W"),
"emulsion" ("EC" or "E"), "microencapsulated" ("M"), or water dispersible
granules ("WDG" or "DF"). (See pesticide label to determine its classification.)
2. Operation principle:
The nozzle design creates a venturi effect, speeding up the fluid flow as it exits the
nozzle. This increase in velocity creates a low-pressure area (vacuum) which draws
in additional fluid from the tank, multiplying the outlet flow for increased agitation.
3. Operate the agitator
Begin agitation by opening the agitation valve.
9. Adjust pressure Turn the pressure regulator until desired pressure is achieved. Turn clockwise
as needed to increase pressure, counterclockwise to decrease pressure. Do not exceed 350psi.
Operation – Using the Sprayer
not remain in solution and should be agitated to maintain a uniform mix.
Pressure regulator
Pressure gauge
28
Agitation lever