Ind spark
Screwfix Select
I know I was just messing, underground is the obvious route.Done it (poles, drops & pillar boxings) - but many customers dont like poles or drops of any kind in my experience. The idea of the island work top is for it to be clear and free from obstructions for family sit-downs etc.
Nowadays, very few now want sinks or plumbing inserted in the free space.
I asked my question to see what post #16 would come up with - the question is still open?