But, while on and screwing of the transparent filter housing it is me initially failed the white and in my opinion much too soft, upper silicone gaskets in place to keep. They twisted stehts when screwing and tucked last wrong to the filter, rather than take their sealing position between the screen and input port. It then helped only sanitary silicone to the silicone seal on screen vestzukleben and silicone spray to make the surface slippery so that they could be tightened to the counterpart without any problems.
And generally to the Guard terminal. Despite standardization of threads and seal sizes in pipe joints, it creates Gardena without problems even here a separate standard for sale. The Kunstofftüllen which should connect the filter pump hose and fit only to Gardenaprodukte. You hereby receives no connections to other equipment brands, or even non-return valves back without leakage problems. Here help only Brass fittings and Teflon sealing tape or a lot.