The kitchen sink mixer has started leaking - we've removed the handle but it's not obvious what the next step is... Does the main body unscrew? Pull up? With a special tool?? Or does the unit have to out (by undoing the undersink nut) to further dismantle?

Dave, November 2008

The main body unscrews, depending on how tightly it has been put together, sometimes it is easier to remove the tap to repair it.
I have found that it is usually cheaper to buy a replacement tap which comes with hoses etc, than it is to buy a replacement cartridge ( which is the cause of your leak) and is a lot easier and quicker to rectify the fault.

rob, November 2008