AquaScape 2000 Mode D'emploi page 10

Backwashing the UltraKlean Pond Filter continued...
• Plug in or restore power to pump.
• Backwash approximately 1-3 minutes depending on how
dirty the filter is, or until the water begins to come out
clear.
• Unplug or turn off power to pump. If using the discharge
shutoff valve, fully close the valve. If using the backflush
cap, remove the multi-hose fitting and replace the
backflush cap
• Turn the valve 90 degrees clockwise to the "RUN"
position.
• Plug in or restore power to pump. Press the "RESET-
CLEAN" button once you have completed the cleaning
operation.
UV Operation
The UltraKlean Pond Filter with UV prevents/eliminates
single-celled algae commonly referred to as green water.
The UltraKlean Pond Filter includes a bulb saver timer
feature that extends the life of the UV bulb by allowing you
to set the operating time for the bulb based on the water
quality conditions in the pond.
• Setting the UV Timer – If the pond water has a planktonic
algae bloom (green water) then use the "Select UV Time"
button to set the UV timer to the 24-hour setting (always
on). In general the cleaner and clearer the pond water, the
less the UV light needs to be operated. Once the green
water is cleared you can reduce the UV timer to the 12-
hour setting (on for 12 hours/off for 12 hours) or the 6-hour
setting (on for 6 hours/off for 18 hours). If you notice the
green water beginning to reappear, you can increase the
UV light operation time until the green water clears.
• Bulb Life – For effective clarification, the UV bulb
should be replaced after 12 months of continuous use
when operated on the 24-hour setting. The bulb saver
feature can extend the life of the bulb up to 2 years
when operating on the 12-hour setting or 4 years when
operating on the 6-hour setting. Please note: even
though the UV bulb still emits light, it may have lost its
effectiveness at clarifying if the recommended operating
duration has been exceeded.
• Cleaning/Replacing the Quartz Sleeve – A dirty quartz
sleeve will reduce the effectiveness of the UV bulb. Debris
and mineral deposits can be cleaned using a mild acid
like white vinegar or a non-abrasive calcium, lime, or rust
remover with a soft bristled brush or sponge.
10
To access the
quartz sleeve:
1. Unplug both
the pump and
the UltraKlean
Pond Filter.
2. Once the clips are released, use the lid and tank tabs to
gently lift the lid assembly free from the canister. The lid
may be difficult to lift due to the pressure inside the filter.
Loosening one of the plumbing fittings will reduce the
pressure, making it easier to remove the lid.
3. Remove the set screw holding the UV light tube in place
under the UV ballast. Please note: use a properly-sized
Phillips screw driver small enough to grip the set screw.
4. Twist counter-clockwise and lift to remove it and expose
the quartz sleeve.
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