Well guys, I am disappointed, I have used this forum for many years and have had constantly great advice (Tony Agile et al) which has helped me out as a DIYer from a group of people who give their professional advice, promptly and politely, and for free!
I read this forum even when I don't want advice just to enjoy the 'banter' !
The last thing I want is to be the cause of any bile between you, so hereby posting my final comment on this particular thread.
I have contact a local plumber to come and take a look at the existing pipework and do the job.
Thanks for all your contributions.
Steve