fred wrote:
Rob writes
says...
P.R.Brady writes
I want to bleed a radiator but all I see is this:
http://www.bangor.ac.uk/is/iss025/bleed.jpg
Is it the remains of a broken bleed screw ...

.. just turn off both rad valves and be prepared to catch a half pint
or so when undoing the offending plug
If a trv is fitted then setting it to zero should turn it off in this
weather.

Be careful with this. I thought the same, and turned off my TRV to take
off the rad to paint behind it.

Came down next morning to a minor lake [1] in the hall where the TRV
had seeped overnight, not much, but enough.

Cheers

Paul.

[1] Thankfully the wood floor isn't down in there yet ;-)