1. Pressure required at top fixture
   (use actual pressure required or estimate 30 PSIG)

2. Static Head - Building elevation - use actual or estimate
   using [number of floors x10 ft. x (.433 PSI/FT)]

3. Pipe friction loss, use actual or estimate using the greater of (10% of static head) or (3 PSI loss per 100 feet of run).

4. Pressure loss through building system components
   such as water softeners, mixing valve(s) etc.

5. Internal Booster System loss

6. Pressure required Total (1+2+3+4+5)

7. Subtract minimum suction pressure at Booster System
   (Refer to definition 3 on page 2.00)

8. PUMP DIFFERENTIAL PRESSURE required (6 minus 7)
   

______ PSI
 

______ PSI
 

______ PSI
 

__5___ PSI

______ PSIG

______ PSIG