Thanks for all of the replies, it was a joint that had previously been soldered, but had been changed by the previous owners to a plastic push fit without cleaning up the pipes first so wasn't pushed together properly ( a big lump of solder remained).
The strange thing was, it was in the...
That's what I have done, and the consumption has stopped.
Despite searching for a couple of hours prior to posting, after posting I was directed to a similar topic:
http://www.diynot.com/forums/viewtopic.php?t=268014
where boabcelt said:
"Unfortunately, I've had 2 in the past...
Hi, I've recently moved into a house that has a Logic+ 30 combi boiler. It was fitted in Feb 2011.
I've noticed that there is a permanent flow of water to the boiler, with it using 0.02 cubic meters per hour.
The pressure is 1.2 bar.
The refill loop valves are closed.
I cannot see if...