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When spraying with either the boom or the handgun, pressure may be reduced by slowly opening the bypass valve until desired pressure is achieved.
Opening the valve decreases pressure, closing the valve increases pressure. When spraying with the boom, the proper method to set the pressure is
to open the boom valve completely and if a lower pressure is desired, then slowly open the bypass valve until that pressure is obtained.
For the safest and most efficient chemical application, you will need to calibrate your sprayer using the tip and speed charts. Once you have deter-
mined the proper speed and pressure settings, you will need to consult your chemical label for the amount of chemical to be added to the tank. Read
the entire label. Use only according to label directions.
Calibration
Chemical labels may show application rates in gallons per acre, gallons per 1000 square feet or gallons per 100 square feet. You will note that the tip
chart shows 2 of these rating systems. Once you know how much you are going to spray, then determine (from the tip chart) the spraying pressure
(PSI), and the spraying speed (MPH).
Determining the proper speed of the pulling vehicle can be done by marking off 100, 200 & 300 feet. The speed chart indicates the number of seconds
it takes to travel the distances. Set the throttle and with a running start, travel the distances. Adjust the throttle until you travel the distances in the num-
ber of seconds indicated by the speed chart. Once you have reached the throttle setting needed, mark the throttle location so you can stop and go
again, returning to the same speed.
Add water and proper amount of chemical to the tank and drive to the starting place for spraying.
Maintenance During/After Spraying
Periodically check the strainer and clean the screen on your intake line.
Proper care and maintenance will prolong the life of your sprayer.
After use, drain the tank and store or dispose of chemical properly. Fill the sprayer half way with clean water. Start the pump and allow the water to
pump through the entire plumbing system and nozzles. Drain and then refill half full, add the recommended amount of a good quality tank cleaner,
such as FIMCO Tank Neutralizer and Cleaner. (If no tank cleaner is available, you may substitute dish soap for this step, about 1-2 oz. per gallon).
Turn pump on and circulate through system for 15 minutes and then spray out through boom (if applicable) and handgun nozzles. Refill sprayer half
way with clean water and repeat. Follow the chemical manufacturer's disposal instructions of all wash or rinsing water.
If nozzle needs cleaning, remove from the handgun and soak in warm soapy water. Clean with a soft bristled brush or toothpick if necessary. Never
use a metal object. Even the slightest damage can change the flow rate and spray distribution. Water rinse and dry the tip before storing.
WARNING:
Some chemicals will damage the pump valves if allowed to soak untreated for a length of time! ALWAYS flush the pump as
instructed after each use. DO NOT allow chemicals to sit in the pump for extended times of idleness. Follow the chemical manufacturer's
instructions on disposal of all waste water from the sprayer.
Winter Storage
Prepare the sprayer for end-of-season storage by running RV antifreeze through the system. This will keep internal parts lubricated, protect against
corrosion and keep the unit from freezing. Note: RV antifreeze is non-toxic and biodegradable and generally safer for the environment than automotive
antifreeze.
Before storing your sprayer for winter or long term storage, thoroughly clean and drain it as much as possible. Then pour enough pink RV antifreeze
into the tank so that when the pump is turned on you can pump the antifreeze throughout the entire plumbing system, including the bypass. Make sure
to operate the boom (if applicable) and handgun until you see pink fluid spraying from the nozzles. Leave any remaining antifreeze in the tank. Before
your next usage, rinse the antifreeze from the sprayer with clean water.
It is nearly impossible to drain all of the water from the sprayer and any trapped water can freeze in cold weather and damage parts of the sprayer.
Pumping the antifreeze through the system will displace the water and help prevent this damage.
Removing from storage: drain the antifreeze. Fill the tank with fresh water and run through the system. Dispose of antifreeze and flush water properly.
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