I re-sited a radiator which now drips. I put plenty of PTFE tape on,
made sure olives were ok and tightened as much as I dared - but still a
slight drip from each side around the valve. Now the weather has turned
colder and the heating comes on there is no drip. I guess that
expansion is the reason. Now the radiator is dry and warm would anybody
recommend putting some sealant around the joints?