MARIMEX ProStar 6 - Troubleshooting Common Issues

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NOTE: With a view of observance of hygienic conditions and eciency optimisation
the backwashing must be carried out no matter how long the operation time is or
pressure load increase at least each 8 days due to hygienic reasons. If the pressure
load grows, the backwashing must be performed more frequently.
Change of sand fill
Absorption capacity of sand ll to capture impurities completely rests in coarseness
of sand particular grains which are gradually brushed during the ltering.
In order to maintain maximum ltering eect we recommend to change the sand
ll before each or every second season.
Cleaning of pump preliminary filter.
• Switch the pump motor o (disconnect the plug from socket).
• Close the stop-cocks. *
• Unscrew the ring with thread and remove the clear small window Remove the
cover of coarse preliminary lter, clean and put it back. Put the clear small window
back and screw and tighten the ring with thread.
• Open the stop-cocks.
• Connect and switch the pump motor.
ATTENTION: The pump motor must not be operated without the screen of coarse
preliminary lter, otherwise it could be clogged and blocked.
* If the stop-cocks are not used, water will ow our of the pump open suction.
Troubleshooting
DEFECT CAUSE SOLUTION
Pressure gauge shows higher
pressure than 1 bar.
Clogged sand ll.
Carry out then backwashing
operation.
Too low pressure
Clogged screen of pump coarse
preliminary lter.
Clean the coarse preliminary
lter screen.
Air lock in coarse preliminary
lter.
Leaks at suction side.
Tighten hose clamps and PVC
joints.
Water outow from waste
socket.
This means that valve seating
faces are damaged.
Have the valve repaired.
Water ows to the waste.
Impurities around the sealing of
six-way valve.
Unscrew the six-way valve from
the ltration vessel lid and
clean the sealing.
Filtration vessel leakage. Defective sealing.
Check the sealing and change it
if it is necessary.
Motor of the pump does not
run.
The plug is out of the socket. Put the plug in the socket.
Tripped earth-leakage circuit
breaker.
Switch the earth-leakage circuit
breaker, if it immediately trip
again, the pump motor is
Defective motor of the pump. Change the motor.
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