Pump Tube Selection Procedure

Step 1 - Define Variables

Define the following conditions for spraying:

  • Maximum or average application width, in feet.
  • Average application speed, in miles per hour.
  • Chemical application rate, in ounces/acre.

Step 2 - Calculate Pump Demand

Use the following equation to calculate the pump demand:

pump tube equation

Step 3 - Use Chart To Find Correct Tube

Compare the pump demand calculated in step 2 to the correct pump chart below to find the appropriate pump tube size.

It is best to select the smallest pump tube size that will meet the calculated pump demand.

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