Employs two people taking chemicals (kerosene) tank 200 liters into gallons, 10 liters of the first acts to open the valve the wind to push air into the tank, it flows through the hose and close the valve winds on the chemical full gallon of people. the two.After filling a 10 liter gallon employees need to fold the hose to stop the flow of chemicals that persist in the hose.
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