Hardi Mercury Covamax series, Operator'S Instruction Manual, Page: 62 / 110

5 - Operation
5. 8
Rinsing boom and fluid system
Rinsing the entire liquid system
The complete rinse decontamination process should use the following;
• Full Tank - Cycle and drain
• 1/3 Tank - Cycle and drain
• 1/3 tank - Cycle and drain
• Full Tank - Cycle and drain
The following process should be followed as a minimum;
1. Empty the sprayer by draining solution from the main tank as much as possible.
2. Completely refill the main tank with clean water to aid cleaning of the inside walls of the tank.
3. Turn pump ‘ON’
4. Turn the agitation tap ‘ON’ to cycle the clean water through the agitation lines. Turn tap ‘OFF’ after cycling for
several minutes.
5. Turn the powder mixer tap ‘ON’ to clean the powder mixer lines. Turn tap ‘OFF’ after cycling for several
minutes.
6. Open the section control valves, boom zone valves and outlet nozzle valves to allow clean water to spray
through boom lines and nozzles.
7. Clean the pressure relief line by turning the pressure regulation to the lowest setting and close both section
valves, this will pressurise the manifold and activate the pressure relief valve allowing clean water through
the valve and back to tank.
8. After operating all fluid components, turn ‘OFF’ the main pump and drain the tank completely.
9. Refill the main tank with clean water to 1/3 full and repeat steps 3-8.
10. Repeat step 8.
11. Repeat steps 2-8.
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WARNING: To avoid over-dosing the crop, spray out diluted residues over as large an area as possible by
increasing your forward speed (to double if possible) and set your working pressure to somewhere around
1.5 bar (20 psi).