On Tuesday, 24 July 2018 08:58:09 UTC+1, True Blue wrote:
I had a bathroom completely refitted about 3 years ago. After the job was done, the flow at the taps, showerhead etc was significantly reduced. The guy who did the work told me that the old, wide fittings were no longer available. Of course, this was bull****. It takes an age to fill the bath and the shower is *just* adequate on full bore.

Is there any virtue in fitting a pump to the bathroom supply only?

Your problem is that you employed a cowboy.
None of these problems should have happened.
The cause of this will need to be established and put right.
Pumps should not be needed.