evo stigao odgovor iz eheima za sve koji se nadju u slicnim problemima:
Thank you very much for your inquiry by email. There may be several reasons for deteriorating filter performance. Most likely, however, it is not caused by a fault in your filter. Our pump systems operate on the principle of the synchronous motor, i.e. the pump wheel turns at 3.000 R/min or stands still in case of overload. Therefore these pumps always run either at full capacity, or not at all.
Deteriorating filter performance is generally caused
1. by dirty filter medium
2. by wrong combination of filter media
3. by the hose installation
4. by dirty hoses or pump chamber.
5. by incorrect start-up.
For optimum, trouble-free running of the filter we recommend the following measures:
1. Clean filter media.
2.
Check combination of filter media layers for the recommended layer filtration
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Fill the bottom filter basket with EHFIMECH to such a level that the blue filter pad can be inserted under the handle. Fill the upper filter basket with EHFISUBSTRAT up to just under the rim.
Remove filter media from the media basket and rinse. The pipe opening of each filter basket must be fitted with a rubber socket, which ensures the secure connection between the baskets and to the pump head. After inserting the basket add the white fleece membrane in such a way that the hole is positioned over the pipe opening.
CAUTION: Never insert filter pad under the handle !!! Make sure white filter pad is replaced after each cleaning process !!!
3.
Check hose installation for possible kinks or severe restrictions of diameter.
4.
Clean the complete hose installation at regular intervals with brushes. Pull the EHEIM Universal Cleaning Brush (no. 4004570 for hose diameter 12/16 mm / 1/2", no. 4006570 for hose diameter 16/22 mm / 3/4") through the suction and pressure hoses as well as the intake pipe and nozzle bar. Clean the pump chamber as well as the cooling and lubricating channels regularly with the EHEIM Cleaning Brush Set 4009550 for 2222 to 2324 and 4009580 for 2026 to 2128 and 2226 to 2328 (see operating instructions: "Care and Maintenance“).
5.
Start up filter by priming (see operating instructions). Never fill the filter container with water before mounting the pump head. During the filling process the water runback (pressure side "OUT") must be positioned above the water surface so that the appliance can vent properly.
I hope that this information is helpful for you.
prosao sam kroz te savjete i proradilo je, ne znam sto je tocno bio uzrok ali sada opet radi kao nov =)