Once you have the individual values, combine them to find the required boost. If there is existing supply pressure (like from a city main), subtract it from the total. The Final Formula: required pressure existing supply

Below is an example Excel spreadsheet for calculating booster pump head:

The calculation of the Total Dynamic Head (TDH) for a booster pump is essential to ensure the system delivers the required pressure and flow to the most remote fixture.

The static head is the difference in elevation between the suction and discharge points:

A professional-grade calculation tool typically organizes data into two main sections: and Calculated Results . 1. Data Input Section Calculation of Booster Pump

Tally all water fixtures (sinks, toilets, showers) and assign each a "fixture unit" (FU) value. Conversion:

): The vertical distance the fluid must be lifted, measured from the pump centerline to the highest discharge point. Friction Head ( Hfcap H sub f

The energy lost as water flows through pipes, fittings, and valves. Triple "D" Pump Company Pressure Head ( cap H sub p