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4.
OPERATION RECOMMENDATIONS
IMPORTANT :
When starting up the filter for the first time, observe the direction in which the water is flowing: in the
"Filtration" position, water should pass though the filter from the top to the bottom. If the pipes were
inverted during assembly, or the multiport valve is defective, water could cross the filter from the bottom to
the top. This would rapidly lead to damage to both the tank and the laterals. The following indicate inverted
assembly:
•
a low pressure reading on the pressure gauge.
•
a flow rate that drops rapidly even after back washing the filter even though the filter basket is clean.
•
persistently cloudy pool water
Filtration run times
The filter run time corresponds to the theoretical time taken for all the pool water to pass through the filter.
In family pools, the recommended run time is 6 hours minimum.
Depending on the water temperatures we recommend the following:
•
below 14°C: 5 to 6 hours per day
•
from 15° C to 23°C: 6 to 8 hours per day
•
above 23°C: 10 to 12 hours per day.
The filter run time should be increased with increasing temperature and/or with increasing bather load. To
optimise filtration, run the filter only during the day (between 8 am and 9 pm), and generally while the pool
is in use. (One swimmer pollutes 3m3 of water).
4.1
Filter backwash
Before using the filter for the first time, carry out a backwash to clean it and remove any excess sand or
impurities.
After backwashing the filter, change the valve position to filtration and switch the pump on. The black hand
on the pressure gauge will indicate the filter's nominal pressure. This pressure varies depending on the
pump flow rate, static pressure and pressure drops across the piping.
To preserve a record of this nominal pressure, turn the dial of the pressure gauge until the blue hand is
aligned with the black one.
After a certain time, a drop in the flow rate may be noted at the return fittings. This is caused by the gradual
build up of impurities in the filter or the filter basket.
1) If the filter pressure is below the blue needle
The pump pre-filter must be cleaned :
•
Shut off the pump
•
Put the 6 way valve in the CLOSED position
•
Shut off the suction valves A, B, C, D (skimmers, main drain) and the water return E
•
Open the pre-filter and remove the basket
•
Remove all dirt particles by using a water hose jet
•
Put back the basket
•
Put the lid back on the pre-filter and make sure that the O-ring is still in the correct position and that there
is enough water to prime the pump
•
Put the 6-way valve in the FILTRATION position
•
Open the suction valves A, B, C, D (skimmers, main drain) and the water return E
•
Start the pump
•
Purge air from the filter.
This operation must be carried out every time the pool is vacuumed and at least once a week.
CONSTRUCTION & RÉNOVATION
2020/12 - Indice de révision : D - Code : 26625
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