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2. Reassemble in the reverse order, making sure you position the O-rings correctly. When necessary,
grease O-rings with Vaseline.
3. If quartz glass tube or O-rings are defective they must always be replaced
6.2.6.
Function check of UVC lamp UV-C 18W (WDF 20000 UV 18)
In case the UVC lamp does not shine, the micro switch might not be activated. The UVC lamp should get
completely reassembled.
1. Assemble UV-C tube (5) including Quartz glass (2) to lamp socket (3).
2. Make sure O Ring (2a) is inserted.
3. Pull the protective housing (1) over the UV-C tube and Quartz glass and connect to the socket. By doing
so the micro switch should get active automatically.
The UVC tube works properly if you see a bluish light at the end of the viewing glass (6).
Cleaning of filter
6.3
Replace the filter mat (Fig. WDF 10000 D 3 / WDF 20000 D 3, 4) regularly (1 x pro Saison)
If you discover a deterioration of the water quality or too low flow rate or water coming out of the lid of the
filter, the following steps should be done:
1) On the bottom of the filter housing larger amounts of dirt particles get collected over the time. These
must be removed:
Let pump continue to operate
Open the back wash (Fig, C, 4) for approx. 10 sec, then shut off the pump, until filter is completely empty.
Switch on the pump in order to remove remaining residues and dirt. Repeat this procedure until clear
water runs out of the filter. Then close the back wash.
2) Mechanical sponge filter: Take the sponge / the sponges (Fig. WDF 10000 D 3 / Fig. WDF 20000 D,
3,4) out of the filter and clean them with clear water. Insert the sponge / sponges in the correct horizontal
position.
3) Wet-and-dry screen (Fig. D, 1). The screen holes should not get clogged by debris and filaments at all
times in order to allow the water to flow thoroughly.
4) Biological Filter: the Bioballs (D, 2) should be rinsed out, if the amount of debris has increased strongly
5) Make sure the outlet grid is unobstructed. (Fig. E, 5)
Annual maintenance: Carefully clean the filter at least once per year.
Empty the filter completely. Remove the dirt and debris from the bottom. Rinse out all filter materials with
water.
Winter - maintenance
Protect your pond filter from freezing!
x
If there is danger of freezing, take the pump out of your garden pond.
x
Completely clean the pump as specified in the instructions.
x
Store the pump over winter in a frost-free location
x
7. Warranty
The present device was manufactured and inspected according to the latest methods. The seller warrants for
faultless material and workmanship in accordance with the legal regulations of the country in which the
device was purchased. The warranty period begins with the day of the purchase and is subject to the
provisions below:
Within the period of warranty, all defects which are to be attributable to defective materials or manufacturing
will be eliminated free of charge. Any complaints are to be reported immediately upon their detection.
The warranty claim becomes void in the case of interventions undertaken by the purchaser or by third
parties. Damage resulting from improper handling or operation, incorrect setting-up or storage, inappropriate
connection or installation or Acts of God or other external influences are excluded from warranty.
Parts subject to wear, such as the UV bulb and filter mats are excluded from the guarantee.
All parts were manufactured using maximum care and high-quality materials and are designed for a long
lifecycle. It should be understood, however, that the wear and tear depends on the kind of use, the intensity
of use and the internals of maintenance.
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