kiich wrote:
Hi
Just had a combi (worcester bosch) boiler fitted and all seems to work
great.

Pressure of main bathroom seems good and the shower of the bath (mixer
one) also seems fine.

My question is, in the en-suite, we have hansgrohe croma (3 litre
normal) and i was told by the british gas man who came around to quote
us originally on boiler replacement that we will have to change the
en-suite shower - can't remember why but i do remember him saying that
some types of shower does not work with combi boilers because the mains
pressure coming is now too strong and may start leaking??

If the pressure is similar - you used a booster pump, then it's not an
issue.
Would the BG person have liked to have been employed to fix the shower one
wonders.