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Hmmm, not sure. we replaced the grundfos pump. re-filled the system, bled it and away we went. How do you vent the pump? Is that something i can do, or do I need to get the plumber around?

hello when I turned off all of the radiators upstairs, the downstairs radiators didnt heat up at all. The new radiator in the dining room has got new valves, I replaced the old valves in the living room over the weekend. Just wondering now if the boiler and/or the pump is not strong enough...

hello all Got a slight problem I could do with some advice about. Recently moved into a house with an ageing boiler (Potterton Profile Prima 40e) had the local gas fitter come round and give it a service, and advise us as to how much it would cost to replace etc. We decided to leave it until...