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Operation
Operating Precautions
The HydroJect Injection System is a water-driven
liquid injector designed to inject proportionate
amounts of liquid additives that are recommended
and approved.
POTENTIAL HAZARD
Incorrect injection ratios can produce an
unsafe concentration level in the outlet
water.
WHAT CAN HAPPEN
Unsafe concentration levels in outlet water
caused by incorrect injection ratios can
pose a danger to personal health, and can
damage equipment.
HOW TO AVOID THE HAZARD
Determine the correct solution injection
ratios.
Adjust the injector to obtain the desired
solution concentrations in the outlet water.
Ensure that the correct injection ratios are
being maintained.
Machine Controls
Bypass Knob: Rotate the bypass knob
clockwise to enable the injection system. Rotate
the bypass knob counterclockwise to bypass the
injection system and aerate only (Fig. 14).
Ratio Adjuster: Adjusts the mixing ratio to
1:500 (0.2%), 1:200 (0.5%), 1:128 (0.8%) or
1:100 (1%) (Fig. 14). To adjust the ratio, remove
the anti-rotation lock pin, rotate the ratio adjuster
to the desired ratio, then reinstall the lock pin.
(Refer to step 7 on page 14 for details.)
Note:
The decal on the injector is just a
starting point. Further calibration may
be required.
Drain Hose Connector: Used to drain and clean
the tank. To drain the tank, unscrew and remove
the connector (Fig. 14).
2
3
Figure 14
1. Bypass Knob
2. Anti-rotation Lock Pin
4
1
3. Ratio Adjuster
4. Drain Hose Connector
13
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