FAQ
Why has the filter become noisy?
The filter can become noisy due to several reasons. If you have just cleaned the filter, and the filter tank is completely empty, when the filter starts to work again it retains some air inside that can cause this noise. The air will go away after a few days of work and the filter will become silent again. Besides, remember to install the rubber gaskets at both two ends of the impeller. If the filter continues to be noisy you should clean the rotor. Finally check that the tank of the filter has the antislip feet at the bottom, that have the purpuse to avoid noisy vibrations.