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V4.0
Motor runs, but
no water is
delivered.
(Check prime
before looking
for other causes.
Unscrew priming
plug and see if
there is water in
priming hole.)
Pump does not
deliver water to
full capacity.
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All manuals and user guides at all-guides.com
3 in. Gas Water Pump
1. Pump in a new installation
did not pick up
prime through:
a. Improper priming.
b. Air leaks.
c. Leaking foot valve.
2. Pump has lost its
prime through:
a. Air leaks.
b. Water level below suction
of pump.
3. Ejector or
impeller plugged.
4. Check valve or foot valve
is stuck in closed position.
5. Pipes are frozen.
6. Foot valve and/or strainer
are buried in sand or mud.
1. Water level in well is lower
than estimated.
2. Steel piping (if used) is
corroded or limed, causing
excess friction.
3. Offset piping is too small
in size.
4. Ejector or
impeller plugged.
1. In new installation:
a. Reprime according
to instructions.
b. Check all connections on
suction line, air volume control
and ejector.
c. Replace foot valve.
2. In installation already in use:
a. Check all connections on air
suction line, volume control,
ejector and shaft seal.
b. Lower suction line into water
and reprime. If receding water
level in a shallow well operation
exceeds suction lift, a deep well
pump is needed.
3. Clean ejector or impeller.
4. Replace check valve or foot
valve.
5. Thaw pipes. Bury pipes below
frost line. Heat pit or
pump house.
6. Raise foot valve and/or
strainer above well bottom.
1. A deep well jet may
be needed.
2. Replace with plastic pipe or
with new steel pipe.
3. Use larger offset piping.
4. Clean ejector or impeller.
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