bleeding radiators Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[Jean mae]

Hi
I have radiators that have the part that you bleed on the back of them they are about twelve years old.The thing is the 'screw' that you turn to bleed the radiators are worn down and won't turn.Is there a tool I could use to turn them and bleed the radiators? Also how do I flush out the whole system to get rid of air
Thanks for your time guys