12 .OPERATION
SAFE OPERATING PRECAUTIONS
To safely realize the full potential of this pump, you need a complete
understanding of its operation and a certain amount of practice with its controls.
Before operating the pump for the first time, please review the IMPORTANT
SAFETY INFORMATION on page 9 and the chapter titled CHECK BEFORE
OPERATION.
For your safety, avoid starting or operating the engine in an enclosed area, such
as a garage. Your engine’s exhaust contains poisonous carbon monoxide gas
which can collect rapidly in an enclosed area and cause illness or death.
Pump only fresh water that is not intended for human consumption. Pumping
flammable liquids, such as gasoline or fuel oils, can result in a fire or explosion,
causing serious injury. Pumping sea water, beverages, acids, chemical solutions,
or any other liquid that promotes corrosion can damage the pump.
PUMP PLACEMENT
For best pump performance, place the pump near the water level, and use hoses
that are no longer than necessary. That will enable the pump to produce the
greatest output with the least self-priming time.
As head (pumping height) increases, pump output decreases. The length, type,
and size of the suction and discharge hoses can also significantly affect pump
output.
Discharge head capability is always greater than suction head capability, so it is
important for suction head to be the shorter part of total head.
Minimizing suction head (placing the pump near the water level) is also very
important for reducing self-priming time. Self-priming time is the time it takes the
pump to bring water the distance of the suction head during initial operation.
SUCTION
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