i have a vokera combination boiler which is 10 years old, reciently we have started to get small dark coloured particles coming out off the tap when it is running was just wondering if there was any ideas where they are coming from
If the bits are coming from the hot taps only it could be from a perish(ed/ing) diaphragm in the boiler's diverter valve (assuming that how the Vokera functions).
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