English
IMPORTANT: This instructions leaflet contains important information regarding the
correct installation procedure and use of your bobbin wound sand filters. We
therefore recommend that both the installer and users carefully read these
instructions before attempting assembly and commissioning.
GENERAL SAFTY INSTRUCTIONS
These symbols indicate the possibility of danger if the respective
instructions are not followed.
DANGER. There is a risk of injury to persons and of damage to property if this
warning is not heeded.
CAUTION. There is a risk of damage to the equipment or the facilities if this
warning is not heeded.
GENERAL INFORMATION
These filters have been designed for the filtration of swimming-pool water, aquatic
parks and generally for use in water treatment where removal of suspended solids is
required.
The quality of filtered water will depend on: the depth of filter bed, the type and
quality of the filter media, and the selected rate of filtration.
In public swimming-pool installations, specific national regulations must be
respected.
FILTER SPECIFICATION
The filter is made of polyester resin reinforced fibreglass.
Internals:
Water enters the filter via a conical diffuser at the top of the tank. Having passed
through the media bed the filtered water is returned to the pool via the underdrain
system usually consisting of collector arms (also known as ‘candles’ or
laterals’),which have fine slots to prevent media from passing through them..
Filters with a nozzle plate underdrain system in place of the above are equipped with
50 nozzles per m
2
.
The filters are available in a range of different filtration rates from 20-50m
3
/h/m
2
for
different applications, with a working pressure of either 2.5 or 4 bar. Maximum
operating temperature is 50
o
C. Other specifications are available on request.
