Leaking towel rail - what do I need?

[MattB83]

I've just turned the valve on the kitchen towel rail and it's immediately started leaking - probably the first time in years it's been moved. I've never done anything to radiators and will get a plumber in if I must but I've just spent a fortune on a new boiler recently (and then had to get another plumber in to change the drain cock the first plumber left leaking but didn't have time to come back but anyway...) so if this isn't likely to be too difficult.

I've indicated where the leak is - am I right that this shouldn't require draining? Assuming I take the while cover off using the screw and then see if it needs to be tightened up?

[I have noticed a blue patch to the left of the valve - possibly a historic leak?]

any thoughts much appreciated.

 

[CBW]

Yes, could just be a gland nut that needs tightening

 

[Wayners]

Pull white cap off and tighten nut. About ⅛ to ¼ turn. That's all. Will turn easy and see if it stops.

Re white plastic cap. May have screw in holding on? Can't see. Some pull off

 

[Madrab]

I would recommend you back the nut off a 1/5th of a turn first, will help it to seat better.

 

[MattB83]

Sorry I failed to say thanks for all your advice.