I've finally taken the side off the bath to have a look at the pipework to the shower.
There is some kind of slow flow issue on the hot side and my first thought that I might not have fitted a full bore isolation valve.
However that seems to be O.K. - assuming that the podgy body indicates full bore.
Looks like .
Apart from draining down and taking the whole thing apart is there any easy way to tell?
Suffering a lack of enthusiasm for taking stuff apart today. :-(
Cheers
Dave R