Troubleshoo ting – Xylem GSSERVICE R2 Service Manual Submersible Pumps & Jet Pumps User Manual
Page 70
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68
Pump Runs But . . .
Pumps water, but does not develop 40 lbs.
tank pressure. . .
Problem
Recommended Action
1. Leaks in well piping or
Pressurize piping system
discharge pipe.
and inspect.
2. Jet or screen on foot valve
Clean if necessary.
partially plugged.
3. Improper pressure control valve See Pump IOM
setting (deep well only).
4. Suction lift too high for shallow
Use vacuum gauge on
well system.
shallow well systems
Vacuum should not exceed
22 inches at sea level.
a. Jet set too deep for
On deep well system
deep well system.
check ratings tables
in catalog for maximum
jet depth.
5. Faulty air charger.
Disconnect the tubing and
plug the hole. If this
corrects the trouble, the air
control must be replaced.
6. Worn impeller hub and/or
Replace if necessary.
guide vane bore.
Clearance should not
exceed .012 on a side or
.025 diametrically.
7. Overpumping the well.
Throttle a valve on the
pump suction – do not
exceed 22" Hg.
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