© by WilTec Wildanger Technik GmbH
Item 51188–51190
Page 6
03 2022
-1
Cleaning and maintenance
Beware!
Always pull the mains power plug of the pump before cleaning and maintenance!
The device should be cleaned as needed – see the waste display
(1).
1. Turn off the pump and the UV-clarifier.
2. Remove the filter sponges.
3. The sponges can be cleaned and squeezed out in clear
water. You can also use pond water.
4. Never use any detergent or soap as those will destroy the
bacteria inside the filter sponges.
5. Clean the filter tank with clear water, too.
6. It is not necessary to renew or clean all filter sponges at the
same time. If you just clean/renew a part of them, the im-
portant nitrifying filter bacteria are saved to a large extent and
need not to grow completely.
7 In case the base of the filter is too contaminated, it is rec-
ommended to drain the water completely from the filter.
8. After cleaning the filter, it is reinstalled as described.
Cleaning of the UV-clarifier
1.
Open the filter cover to get out the UV-clarifier.
2.
Turn the head of the UV-clarifier in counter-clockwise direction and pull out the lamp device with
care.
3.
Carefully pull the quartz sleeve from the UV lamp.
4.
Remove the O-ring from the quartz sleeve and check it for any damage.
5.
Check the UV-lamp and clean it with a damp, clean cloth.
6.
Clean the quartz sleeve thoroughly, both from the inside and from the outside. If necessary,
replace the UV lamp.
7.
After an operational life of 6000
h, the UV lamp should be replaced.
At temperatures below 8
℃
or higher than 40
℃
, the device must not be operated! Therefore, empty the
filter and clean the device thoroughly. Remove all filter materials to dry them. Keep the filter materials
in a dry, frost-free place during the winter. Cover the filter housing so that no rain water can ingress.
Empty all hoses, pipelines, and connectors to the extent possible.
Before starting-up the filter again, install it again with the open side towards the exit.
