air in system

[anchorman2604]

just renewed all radiators in house gravity feed system with heat only boiler having to bleed the same radiator nearly every day about 5 seconds worth of air any suggestions

 

[Savva]

Some rads just collect the air, I guess it's their location on the circuit makes certain rads prone to gathering the air. Try isolating all the other rads then venting the problem rad really well

 

[plumben]

As above sometimes on a system just one rad will always gather air usually the towel rail, if it becomes a problem fit an automatic air vent in the rad