NAMCO's Sizing Guide will help you choose the correct pressure for your booster system.  The first step is to determine if a booster system is needed.  Using the chart in Figure 1, calculate the total head required.  This will determine if a pumping station is needed on the site.

Calculate Pressure Required

Total Height of building from pumps __________        (+)  #1__________ft.
(From pump to highest point for water)

Pipe pressure loss (8 ft. min. or 10% of static head)      (+)  #2__________ft.

Pressure Required @ top of building (81 ft. normal)      (+)  #3__________ft.

Total Head Required @ system discharge (Total 1-3)   (+)  #4__________ft.

Pumping system pressure loss                                       (+)  #5__________ft.

Total Head for system (Total #4 & #5)                 Subtotal   #6__________ft.

Less Minimum Suction pressure                                     (-)  #7__________ft.

Suction lift                                                                     (+)  #8__________ft.

Total pump head required
ft. head =  Head in psig                     __________PSIG  =  #9__________ft.
  2.31