I removed a radiator in the bathroom to redecorate and refitted at the weekend. I noticed yesterday one or two drips an hour from the cap nut. I tightened up a couple of mm and now it's dripping even more - 1 drip a minute ! Have I damaged the olive or thread ? Should I try tightening further ? I think I know the answer
Anyway, if I have to replace the olive (& valve) as it's the one on the supply side I guess I have to freeze the pipe or drain the system - or do I ?
It's a sealed system with a W.B. combi boiler.
If I lock down all the other radiators upstairs, drain the bathroom one, switch off water supply and then remove the cap nut & valve - will water pour relentlessly out - or, because of the height - will it just lose a pint or so equivalent to what is in the pipes above this radiator ?
If not would freezing be a good option for this ? - job should only take 15 minutes or so I guess.
By the way, if I have to drain the system how do you do this for a sealed combi system - never had one before There is no drain plug anywhere I can see on the downstairs rads and none around the boiler/pipes. Is there another way to do this or did they just not fit a drain valve ?
Thanks for any advice
John
Anyway, if I have to replace the olive (& valve) as it's the one on the supply side I guess I have to freeze the pipe or drain the system - or do I ?
It's a sealed system with a W.B. combi boiler.
If I lock down all the other radiators upstairs, drain the bathroom one, switch off water supply and then remove the cap nut & valve - will water pour relentlessly out - or, because of the height - will it just lose a pint or so equivalent to what is in the pipes above this radiator ?
If not would freezing be a good option for this ? - job should only take 15 minutes or so I guess.
By the way, if I have to drain the system how do you do this for a sealed combi system - never had one before There is no drain plug anywhere I can see on the downstairs rads and none around the boiler/pipes. Is there another way to do this or did they just not fit a drain valve ?
Thanks for any advice
John