Combi boiler woes - DHW etc.
"Andrew Gabriel" wrote in message
...
One possibility that spings to mind is the pump.
A friend had one which somehow lost most of its impellers and
resulted in very sluggish flow.
Cavitation does that to impellers.
I had one go on mine once when I fitted a pump that needed a higher static
head than I had.
Serves me right for buying a special offer without reading the spec.
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