I have a small leak that occurs when the heating is of strangely, in
an upstairs radiator. the leak is where the valve fitting actually
enters the radiator ( a square shaped fitting ). I have tried a couple
of tiny turns with a spanner to tighten it to no avail. should i give it
a good half turn or would that over do it, any suggestions please?
You could try and it might work.
The real solution is to turn off both radiator valves, noting the
position on the lockshield valve with a pencil first, and then
carefully undo one of the valve unions over a container.
Warning. The water may bring sludge with it and this will stain
anything it touches.
Undo the radiator tail, wrap with PTFE tape wound on clockwise as you
look at the end that goes in the radiator end on, to avoid unwinding.
About 5 turns should be enough. Screw back into radiator and
reassemble everything in reverse order.
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