Halo building came to look at this task and I felt like they were telling me the truth.
Upon looking at the price of valve which was £47 pound I decided best to get a new shower as it was fairly old and shite.
Michael allowed me to use a trade account to get cheaper prices and installed new shower in an hour and tidied up.
Bloody nice chap shame about his choice of football club but we can't have both ways. Thanks