While you wait for answers, we may have found some information which could help you.
Click here for Mira 722 Hellohow to reasemble mira shower mixer unit?
theres a leek coming from the valve on my electric mira shower 850?
how do i remove mira 723 shower?
mira 723 thermostatic?
How can I stop my Mira event XS shower from dripping?
shower suddenly does not work?