Air in system

[ferrytrip1]

Hi, we had pump, 3 way valve replaced before xmas. One radiator needs constant bleeding so I assume air must be getting in from somewhere.

Is this a valid assumption or is it possible that the systems is still trying to purge the air and it is settleing in this one rad.

If air is getting in - how would I trace the entry point?

Thanks

Simon

 

[Billy Bob Bob]

sounds like a high point in the system pipe work on that rad or a corrosion problem try setting fire to the air carefully if it burns you have corrosion issues also check your pump see what duty it is and speed its set on

 

[Puddle]

Did this happen before the pump and valve were replaced?If not could be a joint before pump needs tightening

 

[ferrytrip1]

hmmm, set fire to it - think i'll pass and seek assistance with that one. Pump is on its lowest setting, no it was ok prior to the work. Would a loose joint let air in rather than let water out?

Prior to the work the system was filled with the stuff to loosen any sludge, after the work a corrsion inhibitor was added.

I will be replacing a bath towel rad next week so will look at the joints then

Thanks for the replies

Simon