Xylem GSSERVICE R2 Service Manual Submersible Pumps & Jet Pumps - Manual (Page 87)

CHECKING SUC
TION LIFT
85
Compound Vacuum
Pressure Gauge
This gauge will show
the pressure or vacuum
at any position in a
pump or system where
it is installed.
A reading of 20" on a vacuum gauge placed
on the suction side of the pump would tell
you that you have a vacuum or suction lift
of 22.6 ft.
20" x 1.13' = 22.6 ft.
Vacuum
Gauge
22.6'
Vertical Lift
Plus Friction