Getting the old sink out was pretty easy, just four screws and unclip the waste water pipe underneath. The problem came when I realised that the new unit needed a bigger hole to accommodate the drainer as well. This involved the introduction of my trusty jigsaw but also meant removing the taps, which is always a job I hate. Every time I do any plumbing I end up with flood, and today was no exception.
After much huffing and puffing the taps were extracted and the new hole cut, and then recut because the first one was too small. Then it was time for the magic silicone - amazing stuff. First I gave the cut surfaces a liberal annointing to repel moisture, and then applied a generous bead round the edge of the hole and also the lip of the sink. With all this glorious goo in place, I dropped the sink into its hole and pressed down - the silicone is all that holds it in place.
With the taps cleaned up and replaced the end result is a nice clean stainless steek sink, which is at least two inches deeper than the old one, and should make a better job of containing the washing up.
Not bad for a couple of hours work.