37Handler I, II & III Operator’s Manual - October 2008
Problem Cause Solution
Chemical is splashing Improper handling of jugs Apply constant, even pressure when puncturing the con-
tainer. Don’t force the jug onto the knife assembly.
Dull blade Resharpen the knife assembly by removing the assembly
and hand sharpening with a file or grinder.
Suction line is drawing air Incorrect valve settings Reduce suction from the Handler tank by partially closing
the suction valve. This will regulate the speed at which the
mixture is drawn from the Handler. Once all of the liquid
has been drawn from the tank, shut off the suction valve.
Pump is cavitating Incorrect valve settings Reduce suction from the Handler tank by partially closing
the suction valve. This will regulate the speed at which the
mixture is drawn from the Handler. Once all of the liquid
has been drawn from the tank, shut off the suction valve.
Clogged suction lines or venturi Granular product is insufficient-
ly dissolved
Force water back into the venturi by opening the bypass
valve. This allows water to back up into the Handler tank
and dislodge any obstructions.
Threaded fittings leak Improper sealant usage It is important the manufacturers instructions for use are fol-
lowed. As a reminder:
Store and apply between 20 F and 140 F to clear ta-
pered threads.
For pipe diameters up to 1 1/4”, apply thick even coat
to male threads only. For large sizes apply to both male
and female threads.
For up to 2” pipe, tighten up to 3 full turns past hand
tight and for larger sizes up to 2 full turns. Additional
tightening may be required but do not overtorque to
stretched condition.
Cure time may vary with application and service condi-
tions - normally 24 hours.
1.
2.
3.
4.
Hose is difficult to install Heat the hose in boiling water until soft. Slide on to hose
barb fitting. If necessary, hose lubricants and silicone are
available and can be used if compatible.
Tank calibration not accurate Tank is not level Level the system.
Fittings and line volumes not
accounted for
The tank calibration marks indicate the volume of the tank,
but do not take into account added volume in the lines and
fittings. Pre-calibrate the volume of your lines and fittings
to get more accurate readings.
Inside of tank dirty Regular use See the section of this manual that covers cleaning the tank
Contamination in optional recircu-
lation line
Improper rinsing/cleaning Add a second ball valve on the bottom of the tank to com-
pletely isolate the line returning to the pump.
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