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bluehuw
user69121
@CrossRob
I’ve got a barely flowing bath / shower mixer (Grohtherm 2000 - about 10 years old, fed from a combi boiler). Almost nothing coming from either the hot or the cold.
There’s plenty of pressure going to the basin in the same room and it was fine to the bath before it went wrong.
I’ve just replaced the thermostatic valve but no change.
Given it’s both hot and cold, what else could it be? An airlock?