Philips WP3811 - When to Replace the Filter Cartridge; Reduced Filter Cartridge Life

1 Clean the ltered water outlet with a clean toothbrush and wipe
off any contamination with a clean cloth.
Note: Do not use a used toothbrush, as it may transfer bacteria to the water
outlet.
Replacement
New lter cartridges are available under the following type numbers:
WP3911 for water purier WP3811.
WP3910 for water purier WP3810.
However, the housing of both water puriers is suitable for both types of
lter cartridges.
Replace the lter cartridge if it is clogged to prevent damage to the
water purier.
No part of the cartridge can be reused. Discard the used cartridge and
replace it with a new one.
When to replace the lter cartridge
The actual lifetime of the lter cartridge depends on the quality of the
local water and the water pressure.
For optimal performance of the water purier, replace the lter cartridge
if one of the following situations occurs:
A You have used the lter cartridge for six months.
B The hollow bre of the lter cartridge (visible through the cartridge
window) has turned rust brown or dark grey (see section ‘Cartridge
replacement indicator’).
C The volume of puried water decreases substantially.
D The ltered water still has an unpleasant smell or is still turbid
after purication.
Reduced lter cartridge life
The lter cartridge has a shorter life and should be replaced more
frequently in the following situations:
The water pressure is very low.
The pipes and water tank are worn.
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ENGLISH12