DAYLIFF D3SP Installation & Operating Manual - Page 13
Browse online or download pdf Installation & Operating Manual for Water Pump DAYLIFF D3SP. DAYLIFF D3SP 16 pages. Submersible borehole pumps
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The discharged valve is
closed
No water or very low level in
borehole
The pump
runs but
The non-return valve is stuck
gives no
in its shut position
water
The inlet strainer is choked up
The pump unit is defective
Pipes are leaking
The draw down is larger than
anticipated
Wrong direction of rotation
The valves in the discharge
The pump
pipes are partly closed or
runs at
blocked
reduced
The non-return valve of the
capacity
pump is partly blocked
The pump and the riser
pipe are partly choked by
impurities
The pump is defective
Leakage in the pipework
Open the valve
Increase the installation
depth of the pump, throttle
the pump or replace it with
a smaller model to obtain
reduced capacity
Pull out the pump and clean
or replace the valve
Pull out the pump and clean
the strainer
Replace or repair the pump
Replace pipes
Increase the installation
depth of the pump, throttle
the pump or replace it by a
smaller model to obtain a
smaller capacity
Change direction of rotation
Check and clean or replace
the valves and discharge
pipe
Pull out the pump and check
or replace the valve
Pull out the pump. Check
and clean or replace the
pump if necessary
Repair or replace the pump
Check and repair the pipe
work
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