Working Principles - Astralpool 46888A Manuel D'installation

ENGLISH

WORKING PRINCIPLES

(2) skimmer
(6) return
suction inlets
(5) filter
multiport valve
(1) drain
(4) pump
(3) valves
A suction is taken from the main drains (1) on the bottom of the pool and the skimmers (2) at the pool
surface and fed via separate pipework with their corresponding valves (3), through the pump (4) to the
sand filter (5).
After filtration, the water is returned to the pool via return inlets (6), which are installed on the opposite
side of the pool to the skimmers and main drains.
Once in the filter, the water is circulated downwards through silica sand and suspended particles are retained.
The filter sand needs to be washed at intervals to remove the particles it has retained backwash.
This is achieved by reversing the flow through the filter and directing the water containing the dislodged
particles to drain.
When the filter pressure reaches over 1,3 Kg/cm² means that the sandfilter needs to be backwashed.
Bearing these principles in mind, the following installation and operation instructions should not repre-
sent any problem.
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