You dont repair them. Replacement onlyu is the solution which is relatively straight forward.
I sell them from about £5 to £15. I would have to see which one it is
Regards Dave
non-stressed@hotmail.co.uk
non-stressed, August 2008
The valve itself is pretty easy to change-isolate 2 heating pipes (The larger, outside pipes)and let the boiler drain and change valve. open valves and re-fill the boiler.
