Can you replace the nut on the opposite side at the top and what is it called?...mine are rusty and i sometimes get the odd brown dribble...thanks in advance.
@@pr9062 Yeah, if the pressure drops to below 1 bar then top it up, but you don't typically need to unless you empty too much water out of the radiator.
@@lucipherj possibly but a lot of the time it'll fix the leak by replacing the blank or bleed valve. It's usually leaking because the rubber o ring seal has perished, but new ones come with new rubbers.
