Enter the hose diameter, GPM, and hose length, into the friction loss calculator and press the calculate button.
Friction loss occurs when water passes through a hose. Hose distance, diameter, and GPM (volume) all affect friction loss. As water passes through a hose, friction between the water and the inside surface of the hose causes turbulence, which slows the water. The results in a PSI drop at the other end of the hose. The higher the gpm passing through a hose, the more turbulance and friction loss will result.
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