Pressure Loss in Pipe (\( H_f \)):

\[ H_f = \frac{f \cdot L \cdot V^2}{2 \cdot g \cdot D} \]

Where:

• \( H_f \) is the pressure loss in the pipe, in meters (m).
• \( f \) is the friction factor.
• \( L \) is the length of the pipe, in meters (m).
• \( V \) is the average velocity of water in the pipe, in meters per second (m/s).
• \( g \) is the gravitational acceleration, typically \( 9.8 \, \text{m/s}^2 \).
• \( D \) is the pipe diameter, in meters (m).