I have a BlancoOxi 9001 Mixer tap and it is leaking from the top where the alan key is
steve mott, December 2009
i am a plumber look at the back of the tap where it swivels there is almost certainly a retaining screw probably small allen key fitting if so take out and twist stem whist pulling upwatrs there ai a position whilst swivelling the stem to allow it to come up and out replac o ring exact opposite to refit you can do this without tuning stopcock off