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it is all after the mcv, and about 7 inches to the left

A friend of mine has asked me too move his gas meter about 10 inches and i am qualified to do so but do not usually get involved with a lot of meter work! as i have not moved a meter before i was just wondering if it was possible/best practice to replace the governor? use semi rigid...

as for turning off the rads, the trv maybe passing though you should still be able to stop the flow of water by shutting the lockshield valve at the other end! this can be done carefully with a small spanner if it is too tight for your hand! the honeywell box sounds like a zone vale for the...

the trouble maybe lying in the pipework! if the pump had gone and the heat ex cracked there maybe a case of sludge in the system that corroded it!! what colour was the water? a powerflush is not a cheap job!!

I'd have to agree with chris i have worked on quite a few of the potterton puma and combi range and i find that the h/w flow switch does stick keeping the boiler at full rate and over heating, which in turn would cause the noise and possibly locking out depending on the model! worth getting...