I have removed a radiator for decorating purposes and one of the valves (not
TRV) leaks ever so slightly, (one drip every 10mins or so). I have bodged
something up from my box of bits to screw onto the valve, but is there
anything commercially available? I have in the past used a washing machine
hose to connect the two valves together but these valves are too far apart.
I asked at my local plumbers merchant and they looked at me like I had got
two heads!!! Mind you it was 12.15 on Saturday afternoon and I was probably
keeping them from the pub!

Cheers

John