How do i stop Radiator leaking at joints without daring system?
I read this as house radiator leak at joints. Turn valves off at each end – release water pressure from radiator (bleed) and then it may be possible to loosen/tighten valves without taking radiator off. At worst, drain this one rad so that you can refit ‘tails’ into rad if this is where leak is. If leak is from under valve – try quarter turn on nut (don’t over do) If radiator is on car then I’m outa here.