Odd boiler pressure issue

Yes ,but it's a lot of effort / time / expense ,to no avail . It's obvious from what you have done and advised us ,that one or both valves must be passing.
 
terryplumb said:
Yes ,but it's a lot of effort / time / expense ,to no avail . It's obvious from what you have done and advised us ,that one or both valves must be passing.
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Should I be looking at all the pipework or just the ones connected to the central heating system?
 
Top the system up, put the heating on and trace the pipework on the floor. It should be easy to see where the leak is on a concrete floor.

Andy
 
I've looked at the concrete floor with the imaging camera but cannot find any leaks. The pipes under the floorboards are hard to see with the camera so I guess its taking out the floorboards time.
 
Carpets and floor boards, just lift them up and stick your head down there. You should be able to see the whole room from one hole.

Andy
 
Ali Ahmed said:
I will do. Thanks for your advice so far.
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Checked pipes under floorboards in one room today. Quite a job for a novice like me. Couldn't find any leaks. Got 2 more rooms to go, then the concrete kitchen floor.
I did realise that if I leaving the hot water tap running, then the boiler pressure doesn't drop. The same is the case with the central heating. Does that make a difference or is it still a pipe leak I should be looking for?
 
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