Operation 10
PRIMING THE PUMP
NEVER run pump dry. Running pump without water may
cause pump to overheat, damaging seal and possibly causing burns to
persons handling pump. Fill pump with water before starting.
NEVER run pump against closed dis charge, to do so can boil
water inside pump, causing hazardous pressure in unit and possibly
scalding persons handling pump.
NOTICE: Open water system faucets before priming pump for the first time.
Step 1. Remove pressure gauge.
a. Close regulator valve (turn clockwise - see Figure 13).
b. Fill pump and suction pipe with water (Figure 13).
c. Replace pressure gauge, using PTFE pipe thread sealant tape on
thread; tighten gauge.
IMPORTANT: If a priming tee and plug have been provided for a long
horizontal run, be sure to fill suction pipe through this tee and replace
plug. (Do not forget to PTFE pipe thread sealant tape the plug.)
Step 2. Start Pump:
Pressure should build rapidly to 50 pounds per square inch or more
as ejector and pump prime.
IF NO PRESSURE OR NO WATER, REPEAT Step No. 1 (above) two or three
times to remove entrapped air from the suction pipes.
Step 3. If, after priming pump several times, no water is pumped, check the
following:
a. Suction pipe in the water and has no leaks.
NOTICE: Air can leak in even where water won’t leak out. Make
sure all joints are tight.
b. Control valve, check valve, or foot valve installed and operating
correctly.
c. Pump trying to lift water more than 25 feet (shallow well)
or more than rated lift for deep well ejector used (including
compensation for horizontal offset).
d. Be sure pump is not air locked. In offset installations, pump
suction port should be highest point in suction pipe; there should
be no sags in suction pipe (run it straight and at a slight angle
upward from well head to pump).
NOTICE: For deep well installation, go to Step 4 (Page 11). Shallow well
installations go to Step 6 (Page 11).
20
100
80
60
40
Figure 13A: Close Regulator
Figure 13B: Fill Pump with Water
20
100
80
60
40
ON
Figure 13D: Adjustor Regulator
Figure 13C: Start Pump
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