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Les langues disponibles
7.5. CLOSED (FIG.11)
As the name indicates all the battery valves are closed.
This operation is used when cleaning or maintenance work is carried out on the
filter or pre-filter, etc.
8. VALVE BATTERIES. POSITION OF THEM IN EACH OPERATION
8.1. BATTERIES WITH 4 VALVES (FIG.12)
Template of operations for batteries with 4 valves:
1
POSITION
FILTRATION
Closed
BACKWASH
Opened
DRAIN
Opened
Closed
CLOSED
8.2. BATTERIES WITH 5 VALVES (FIG.13)
Template of operations for batteries with 4 valves:
POSITION
1
FILTRATION
Closed
Opened
BACKWASH
RINSING
Closed
DRAIN
Opened
Closed
CLOSED
NOTE: To carry out any operation indicated on the template, the pump must be OFF.
9. DRAINING THE SAND FROM THE FILTER
When you need to drain the sand, due to an accident or because you want to change the sand due to wear and tear, follow the following steps:
•
Drain the water from the filter
•
Remove the sand purge lid
•
While the sand is draining, remove it from around the purge lid to stop it blocking
•
One person needs to get inside the filter to aid the sand towards the purge opening
•
To fill the filter with sand again, follow the instructions for 'Starting Up'
Use the time the filter is without sand to check all the internal components, most importantly the laterals and replace any that are damaged.
10. OTHER RECOMMENDATIONS
The interior assembly, the number of laterals and diffusers, varies depending on the size and type of filter. The diffusers function is to distribute
the water in the most even way possible over the filtration bed. The laterals function is to collect the water once filtrated and channel it to the exit
of the filter.
Each filter is equipped with a manual air drain cock in the upper part of the filter. Likewise, all filters have a manual water drain cock in the lower
part of the filter that can be connected directly to the sewer system.
Once the swimming pool installation is complete, it is recommended to give the filter a good clean with pressurised water in order to clean all dust
and dirt gained during construction or installation.
Remember that your installation can be totally automated, in which case an Astral technician can recommend the most appropriate installation for
your needs.
If the installation is likely to be left for a long period of time without being used, it is advisable to drain the filter of water.
If the filter lives outdoors it is advisable to paint it with an appropriate paint every 2 years.
2
3
Opened
Opened
Closed
Closed
Opened
Closed
Closed
Closed
2
3
4
Opened
Opened
Closed
Closed
Closed
Opened
Opened
Closed
Closed
Opened
Closed
Closed
Closed
Closed
Closed
4
Closed
Opened
Closed
Closed
5
Closed
Closed
Opened
Closed
Closed
5
FIG.11
DRAINAGE
TO THE
POOL
FIG.12
DRAINAGE
TO THE
POOL
FIG.13
DIFFUSERS
FROM
THE POOL
COLLECTORS
FROM
THE POOL
FROM
THE POOL
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