Does anybody know how to get air out of....

[matty25]

...out of a central heating / boiler / hot water system, everytime the boiler takes in water it bubbles and gurgles quite badly, i definately think air is getting into the system somewhere but not sure where.

Is there any way i can get rid of this? I know that the radiators have some sludge in the bottom and could do with a good rinse out, as they rarely get hot at the bottom.

Regards

Matt

 

[bengasman]

... everytime the boiler takes in water it bubbles and gurgles quite badly...

Takes water in???

 

[maddog1964]

when your pump kicks in is there water going into the small tank in the loft ie pumping over
try turning your pump down
if your putting fresh water into the rads often they wont last very long