Replacing 'O' Rings on Mixer Taps

In most mixer taps, the gland packing has been replaced with an '0' ring. Remove the shrouded head and the clip holding the spindle in place. Take out the spindle and take the old '0' ring out of its groove and replace it with a new one then reassemble the tap. If water is leaking from the mixer taps swivel base, you'll have to find out the type of seal first before you can buy a replacement. Turn off both valves, unscrew the spout or remove the retaining screw. Note the type of seal and buy a new matching one.