Problem

what pressure have you at the taps near the shower?? if they are working ok its very likley some mucks got in the shower, or it just might be the showers fucked and nothing to do with you doing the washer, this is a problem with our job, we very often get " it was ok till you fitted the other taps" ,

if the taps near the shower are slow too, it likely the stoptap is fucked inside and that means getting the water off from outside, that can be either dead easy or a nightmare,
anyway rocket good luck mate let us know how you go,

I've fixed it!!

I turned the stopcock fully off & on again & it's ok

Maybe a bit of dirt in it?

Anyway, she's happy!!

Thx for your replies & help

Is the quiz on later??