Removed a radiator for painting today (Novice alert!)
I had secured the valve but somehow the nut on the base, connecting the copper pipe has started to slowly drip. I have reconnected the radiator and all operational but can't fix the leak.
My heating is on a pressurised system, so I was looking for a way to drain the system off completely but having difficulty finding a drain valve that matches anything described in instructions.
These are pictures of the valve in question (leak from the base nut). I have a suspicion that the open part of the valve here is the drain valve but no idea how to open it up if I just attached a hose to it?
Any help appreciated on either a quick way to stop the leak or to drain the system.
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