75
CAUTION
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For further
information refer
to the instructions
provided with the
sand fi lter
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The pump should
never be allowed
to run dry (without
water).
PRE-FILTER
1 - If the pressure indicated on the pressure gauge falls below the nominal pressure
indicated by the blue needle, clean the pump pre-fi lter.
- Stop the pump.
- Turn the 6-way valve to CLOSED.
- Close the suction and return valves.
- Open the pump pre-fi lter.
- Remove the basket.
- Use a water jet to remove any impurities.
- Put the pre-fi lter basket back.
- Put the pre-fi lter lid back on making sure that the seal is correctly positioned and that
there is enough water to prime the pump.
- Move the 6-way valve to FILTRATION.
- Open the suction and return valves.
- Switch the pump on.
- Vent the fi lter (this should be done each time the pre-fi lter is cleaned and at least
once a week).
FILTER
2 - If the pressure indicated by the pressure gauge rise above the nominal pressure,
carry out a fi lter back wash.
- Stop the pump.
- Check the pre-fi lter and clean it out if necessary (as indicated above).
- Before proceeding with a fi lter back wash or draining the pool, make sure that the
waste pipe (not provided) has been attached to the waste outlet.
IMPORTANT! Your pool comes with a dechlorinator. The dechlorinator removes
chlorine from backwash water so that it can be recycled and used in the garden, to
wash cars etc. instead of being pumped to waste.
For information on how to install the dechlorinator, refer to the instruction booklet
enclosed with this unit.
- Put the 6-way valve to BACK WASH.
- Turn the pump on.
- Observe the colour of the water in the turbidity sight glass.
CAUTION a few seconds will elapse before cleaning begins (water becomes cloudy)
- As soon as the water runs clear, stop the pump.
- Put the 6-way valve to RINSE.
- Switch the pump on for 20 to 30 seconds, to remove impurities and settle the sand.
- Stop the pump.
- Turn the 6-way valve to FILTRATION
- Switch the pump on.
After a back wash, the pressure in the fi lter should drop back down to the nominal
pressure.
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COMMISSIONING AND OPERATING
RECOMMENDATIONS (CONT)