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![](https://files.manualsfile.com/55639690-dxpw4240/bg13.png)
19
English
Chemical injection system: Mixes cleaners or cleaning solvents with water to improve cleaning effectiveness.
Choke control: Opens and closes carburetor choke valve.
CU: Cleaning Units. GPM multiplied by psi. (GPM x PSI = CU)
Fuel valve lever: Opens/closes connection between fuel tank and carburetor.
GPM: Gallons Per Minute. The unit of measure for the flow rate of water.
PSI:PoundsperSquareInch.Theunitofmeasureforwaterpressure.Alsousedforairpressure,hydraulicpressure,etc.
kPa (kilopascal): Metricpressuremeasurement.1kilopascalequal1000pascals.
Quick-connect spray wand: Allowstheusertoquicklychangeouthigh-pressurenozzles.Referto Spray Wand Nozzles.
Thermal relief valve: When the temperature inside the pump rises too high the valve will open and release a gush of water in an effort to lower
the temperature inside the pump. The valve will then close.
Water supply: Allpressurewashersmusthaveasourceofwater.Theminimumrequirementsforawatersupplyare20psi(138kPa)and5
gallons per minute.
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