23
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How to Feed Water
Warning
⚫
Never feed water directly from a drinking water
source or any lake or pond used for aquatic
farming.
(1) Move the three-way cock in the
“Spray” position
and add the required amount of water in the
reagent tank.
* If no water supply facility is available, a spray pump
water feeding hose or a jet pump (optional) would be
useful.
(2) How to Operate the Spray Pump Water Feeding
Hose
[1] Connect the spray pump water feeding hose.
Spray pump water feeding hose
[2] Open the lid of the reagent tank.
[3] Throw the strainer end of the spray pump water
feeding hose into the water source.
[4] Press the spray pump switch and confirm that the
water inside the reagent tank is circulating. At this
point, set the throttle lever in the idling position.
[5] Set the three-way cock in the
“Water feed” position.
[6] Once the water feeding begins, pull the throttle
lever fully to set the engine to a normal speed.
[7] Using the reagent tank water gauge as the
guideline, when the tank is filled with the required
amount of water for spraying, return the throttle
lever to the idling position, set the three-way cock
to the
“Spray” position, and then press the spray
pump button to stop the water feeding.
[8] Disconnect the spray pump water feeding hose.
Caution
⚫
Be sure to add priming water when feeding
water. If the idling lasts too long while feeding
water, the spray pump may be damaged.
Supplement
⚫
Use all of the reagent in the tank first before
adding water. When feeding water when the
reagent tank still has residual liquid, use a jet
pump (optional) or another water feeding
device.
⚫
Exercise caution as a small amount of residual
water will come out from the pipe when
disconnecting the spray pump water feeding
hose.
(3) How to Operate the Jet Pump
[1] Prime around 20 L of water into the reagent tank.
[2] Connect the pipe from the jet pump and open the
cock.
[3] Throw the strainer end of the jet pump into the
water source and insert the opposite end to the
water inlet of the reagent tank.
[4] Close the spray cock fully.
[5] Put the throttle lever in the idling position and press
the spray pump switch.
[6] Pull the throttle lever and set the engine to the
medium speed.
[7] Confirm that all spray cocks are closed, and raise
the main spray cock lever to increase the pressure.
[8] Operate the pressure adjustment dial to set the
spray pressure to 2 to 2.5 MPa.
[9] Once the required amount for spraying has been
added, close the jet pump cock.
[10] Lower the main spray cock lever, return the throttle
lever to the idling position, press the spray pump
switch to stop the pump, and disconnect the jet
pump.
Three-way cock
Water feeding hose
connecting joint
(also used for the drain)
Spray
Drain
Water feed