Step 19 Enter the Roughness of the Pipe or leave it at zero if you are not sure what it is

Step 20 Choose the Liquid you are Measuring from the Scroll down list

Step 21 Enter in the approximate liquid temperature

Step 22 Scroll to the Output options menu now to choose the Units of Measurement that you need

Step 23 Choose the units for Volume Flow

Step 24 There are lots of units to choose from. Select the units that You are familiar with or that are required

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