Installation Guide

A Quality Product
Made in England
Two Stage Drinking Water Filter
Upgrade your drinking
water with the Doulton
®
www.duofilter.com
Water Treatment Cartridges
Doulton
®
water treatment cartridges
allow the removal of additional
contaminants from your drinking
water, giving you the flexibility to
customise the system to your
requirements:
Sediment & Particle Pre Filter
In areas of high sediment, fitting a
Doulton
®
pre filter in the first chamber
of the DUO
™
will remove sediment
and particles down to 5 microns in
size. It also protects the ceramic filter candle in Stage 2, preventing the
need for excess cleaning, thus prolonging its life.
Cleansoft
™
Pre Filter
Protect against the damaging effects of hard water by using the
Doulton
®
Cleansoft
™
limescale reduction cartridge. This will reduce
hardness in drinking water and the unpleasant ‘chalky’ taste that hard
water can have. Cleansoft
™
will improve limescale build up in kettles
and the film which can form on the surface of hot drinks.
Fluoride Pre Filter
The fluoride reduction cartridge reduces unwanted naturally occurring
and added fluoride to safe levels in your mains supplied drinking water.
+Doulton
®
Water Treatment Cartridges provide protection for
up to 3 months.
Ceramic Filter Candle
The second chamber of the DUO
™
houses the ceramic filter candle.
Selection of the most appropriate
grade of candle allows filter
performance to be matched to the
requirements of the local water
conditions.
Supercarb
®
The Supercarb
®
grade of candle is
fitted with an activated carbon block.
Among other things, activated
carbon is very effective at removing
chlorine and organics from water.
Ultracarb
®
The Ultracarb
®
ceramic filter candle has all the benefits of the
Supercarb
®
with additional heavy metal reduction media, for the
removal of toxic lead.
+Doulton
®
ceramic filter candles should be replaced
after 6 months of daily use.
+Filter cartridge and candle life may vary depending on local water quality and usage.
DUO
™
is a two stage filter system. Consisting of two
chambers, the DUO
™
can be fitted with a combination
of water treatment cartridges and cleanable ceramic
filters to treat a range of water conditions.
Connections
3/8” push fit inlet and outlet suitable for connection to
flexible plastic pipe
Flow Rate
Typically 240 litres/hour @ 60psi (4 bar) supply pressure,
but this will depend upon the combination of filter elements fitted.
For optimal efficiency a flow rate of 2 litres per minute is
recommended.
Working Pressure Range
0.7 bar (10psi) – 6 bar (90psi)
Working Temperature Range
Recommended range 5-30°C (41-86°F)
Technical Specifications
Stage 1 - First Chamber Stage 2 - Second Chamber