quick question about a mixer shower

[dynomo]

afternoon all!
I have a combi boiler system in my house.
Just wondering, if I were to be interested in installing a mixer shower, manual or thermostatic, could I tee off the hot and cold basin tap supplies which run under the bathtub and still achieve a decent pressure or would I need to bring in hot and cold supplies from the boiler itself??? the latter is not achievable im afraid so im hoping for an easy solution....
cheers chaps

 

[Breesey]

Yes, assuming your bathroom cold supply is off the mains - You need balanced hot and cold into a thermostatic shower valve.


Why don't you just fit one on the bath supplies?