F I L T E R A G + S e r i e s F i l t e r
Installation Operation Maintenance Manual
FILTERAG+ WS Rev 1 Page 5 of 16
water to drain depends on site conditions, but will be at least the same as the
service flow. Preferably the drain should be level but no higher than 500mm
above the filter valve.
5.1.2 Operating Space
The space occupied by the filter can be found in the Engineering Data (Section
11 .2).
Access will be required to carry out adjustments or maintenance on the
equipment. It is therefore recommended that a minimum of 500mm clearance
be allowed around the unit for this purpose.
5.1.3 Incoming Water
The raw water to be fed to the filter must comply with the following:-
1. Maximum iron level = 20ppm
2. pH range = 6.0-9.0
3. Organic matter = less than 5ppm
4. Free chlorine = less than 0.5ppm
5. Chloride below 100 ppm
6. Temperature = 3 - 45
C (35 - 110
F)
7. No Oil or Polyphosphates
8. Backwash flow rate should be twice the service
flow rate available with a pressure of 3 bar
5.1.4 Pipework
Pipework to be connected to the filter should not have an excessive amount of
deposits. Piping that is heavily built up with scale (or Iron deposits) should be
replaced.
Make sure that the pipework can be connected to the filter in such a way as
to impose no stresses on the control valve, and that it is properly aligned
and supported.
A system for the complete by-passing and isolation of the filter should be
installed.
5.1.5 Water Supply Company Requirements
During backwash the accumulated debris is flushed to drain. Please contact
your local Water Authority for advice on effluent issues if concerned with flow
to drain.
5 . 2 E L E C T R I C A L
All filter valves are supplied as 12v complete with a transformer for 240v. A
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