Heated Towel Rail Valve Dripping

[Moveonup70]

Heated Towel Rail Valve Dripping.

I was cleaning the bathroom and the heated towel rail and I noticed afterwards there was a very small drip.

See Photo.
View attachment towel rail.jpg
Should I try gently tightening this ? I doubt if I have the correct spanner, would it be a special tool?
I could use a rag and some mole grips.
Any suggestions

 

[SimonG]

It could tighten, but some of the cheaper towel rail valves are complete that and will need replacing as it wont tighten where you think it will.

 

[moonlight]

Are you sure its not coming from the nut above and running down?

 

[Brambles]

I think Moonlight is correct.

To tighten it, you will need two spanners of the correct size - on on the lower nut to hold it and one on the upper nut to tighten it slightly.

Don’t just try to tighten the upper nut without holding the lower nut - if you do there is a remote chance it may shear - then the situation is far worse than a drip!