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The source is a video transcript from the YouTube channel "16FLSI" and it explains how to calculate gallons per minute (GPM) of water flow from a fire hydrant using a specific formula. The formula utilizes factors like pressure, diameter of the hydrant opening, and a "C factor" representing the hydrant's efficiency. The video demonstrates both a rough estimate and a precise calculation of GPM, comparing the results to a chart for validation.
The source is a video transcript from the YouTube channel "16FLSI" and it explains how to calculate gallons per minute (GPM) of water flow from a fire hydrant using a specific formula. The formula utilizes factors like pressure, diameter of the hydrant opening, and a "C factor" representing the hydrant's efficiency. The video demonstrates both a rough estimate and a precise calculation of GPM, comparing the results to a chart for validation.