I'm a keen diyest and have recently re-done my showerroom. I only have a vanity unit style sink left to plumb in to complete the job but am having problems getting a plumber out to install it for me as no-one seems interested in such a small job. There is already a sink there so pipework is already in place. Can anyone tell me how easy it would be to install this myself and where to start as I have never attempted plumbing before. I also live on the 3rd floor so any mistakes I make may be felt by 3 neighbours!