13
S/
N
SIGN/DEFECT/INDICATION
POSSIBLE CAUSE(S)
REMEDY
1
Draws rusty water
Pipes and the rods corrosions
Chemistry of water problems
Free the pipes and rod from corrsion
by developing/flushing the well.
2
Pumped out water containing
worms
Damaged casing
Improper sanitary seal
Poor well design
Chlorinate the well
Improve on the BH design.
3
Pump weightless and no water
Then at instant of breakdown
splash sound hardly.
Pipes/rods disconnected and
dropped.
Check for the pipes if the pipes are
dropped then Fishing out is re-
quired.
4
Pump weight is usual but no water
comes
Reducer cap disconnected and the
lower valve assembly dropped.
Complete cylinder dropped.
Cylinder yoke body disconnected
Dismantle and replace the lower
valve and the reducer cap.
Replace the whole cylinder.
Dismantle and reconnect it.
5
Pump is very light but no water
comes completely
Disconnection of rods at the joint
Re-connect the disconnected rod.
6
Water takes very long to come even
after a brief stop over.
Worn out sealing rings or pump
buckets
Cracks on the rising mains
Replace the sealing rings and the
pump buckets.
Replace the damaged rising mains
7
Water only comes well during rapid
pumping
Pipe leakages
Worn out sealing and rubber sealing
rings
Replace leaking pipes or tighten the
pipes at the sockets.
Replace sealing rings
8
Unusual noise when pumping
Lack of lubrication
Bearing crushing
Some Bolts and nuts are missing or
loosen
Top connecting rods is bent
Greasing
Replace bearing
Tighten the nuts or replace the miss-
ing nuts.
Remove and straighten the rod or
replace the rod.
9
Muddy or silt water pumps out
Cylinder is too close to the well bot-
tom
Insufficient filtration of inflow water
by the gravel packs.
Reduce the cylinder depth
–
depending on the yield of the well,
cylinders shouldn’t be installed at
least 6m from the bottom of the
well. Develop the well.
THE TROUBLE SHOOTING TABLE FOR COMMON PROBLEMS
