Replacing The Uv Lamp - Hozelock Bioforce revolution 12 Mode D'emploi

The time required to clean your filter depends on
6.7
several factors, but the more regularly you clean your
filter, the shorter the cleaning time required. Typically
the cleaning will take a few minutes.
From time to time, you will need to top up your pond
to replace the waste water removed during cleaning.
Partial water changes are an important aspect of
maintaining a healthy pond water system.
Maintenance
Warning: Read these maintenance instructions before
opening the appliance.
Warning: do not attempt to remove the lid or electrical
housing when the pump and filter are in use. A slot for a
padlock is provided in the lid clamp to prevent accidental
opening and we recommend this is used where children are
likely to be present.
7.1

Replacing the UV lamp:

Warning: The appliance must be disconnected from
the power supply before disconnecting the UV-C
emitter.
A UV lamp's effectiveness reduces significantly over
time so you should replace your lamp every 12 months
even if the lamp is still functioning.
7.1.1 Switch off the power to the supply pump and filter.
7.1.2 Turn the diverter valve to waste. This allows the
internal pressure to equalise with atmospheric pressure
and allows easy removal of the electrical housing
without water being drawn up onto the top surface of
the lid.
7.1.3 Wind the cleaning handle by half a turn so that it is out
of the way of the electrical housing (Fig. 16 (i)).
7.1.4 Use a screwdriver to remove the 5 screws which secure
the electrical housing to the lid. (Fig 16 (ii)). There is a
pocket provided between the filter's inlet and outlet
to store the screws while you change the lamp (Fig. 16
(iii)).
7.1.5 Grip the electrical housing and gently pull up to remove
the electrical housing. Turn the housing upside down
and place on a dry level surface.
7.1.6 (Fig. 17) Unscrew the quartz tube locking collar (i).
Gently hold the quartz tube (ii), lift up and remove
together with its o-rings (iii) and locking collar.
7.1.7 Remove the old lamp by gently pulling it from its holder
and remove the black protection cap from the end of
the lamp (Fig. 17 (iv)) and remove the reflector plate
(Fig. 17 (v)). Dispose of the old lamp according to local
regulations and fit the new lamp.
7.1.8 Refit the reflector plate and push the black cap on to
the end of the lamp.
7.1.9 Slide the quartz tube down over the lamp. Ensure that
the two o-rings at the base of the quartz tube are clean
and free from debris.
7.1.10 Slide the locking collar down over the quartz tube and
screw down. You should screw down until the stop of
the locking collar hits the stop of the housing so that
the collar cannot be screwed down any more.
7.1.11 Refit the electrical housing. The housing can only be
fitted in one position so do not try to force it down.
Once in position, replace the 5 screws. The screws must
be fully screwed down to ensure that the interlock
switch is activated.
7.1.12 Turn the diverter valve back to pond and position the
cleaning handle in the stowage position.
7.1.13 Re-start the pump first checking for leaks, then switch
on the UV lamp. Check for the bluish glow from UV
indicator lens.
7.2 Care of UV quartz tube:
Especially in hard water areas the quartz tube
sheathing the UVC lamp may become covered in
limescale. This will reduce the efficiency of the unit if
it is allowed to build up. To clean, switch off the pump
and the power supply to the UV, remove the electrical
housing, as described in 7.1, and wipe the quartz tube
with a soft cloth moistened with a gentle cleaning
agent such as vinegar (See fig 18). You should wear
protective clothing when cleaning the quartz tube such
as safety glasses and gloves.
7.3 Cypricube foam replacement:
Inspect your foam annually. The frequency of foam
replacement will depend on your pond's set up. We
recommend that foams are replaced during winter
and before you start feeding the fish again at the
start of the spring*. Changing the foam at other
times of the year may cause the pond chemistry to
alter and this may harm your fish.
*As pond water cools in the autumn, fish start slowing
down in preparation for a period of semi-dormancy.
Their digestive and immune systems slow down, and
they are not capable of digesting the same types of
foods that they can during the warmer months. If they
are hungry they will feed off more simple foods which
naturally occur in the pond environment. Therefore,
once the pond water temperature falls below 10°C for a
prolonged period of time, you should stop feeding your
fish. Once the weather begins to warm at the start of
the spring, as the fish start to become more active you
can gradually start to feed your fish again.
7.3.1 Switch off the power to the supply pump and filter.
7.3.2 Turn the diverter valve to waste. This allows the
internal pressure to equalise with atmospheric pressure
and allows easy removal of the lid.
7.3.3 Unlatch the lid clamp (Fig. 2(n)). Gently release and
remove the lid by using the 2 levers in opposite slots
(Fig. 19). It may help if you remove the attached hoses.
7.3.4 Lift and remove the foam bucket (Fig. 2(i)) and discard
the old foam. Empty the water from inside the filter
vessel collecting the bio-media in a net. The bio-media
does not require any maintenance.
7.3.5 If the bottom of the vessel is coated in a layer of
sludge, rinse out the bottom of the vessel with some
pond water.
7.3.6 Replace the bio-media ensuring it is located around
the bio-trumpet (Fig. 2(o)) at the bottom of the vessel.
There must be no bio-media inside the bio-trumpet
(Fig. 20).