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- 7 Dec 2010
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Whats the best way to remove trapped air from rads as the bleed screws don't do the job. I recently fitted another rad in the hall. I drained and then flushed the system but now I can't get rid of some air pockets that seem to stay in 2 of the rads. The system is a sealed system with all the main flow and return pipes in the loft so the rads are all lower. How does the auto vent on the boiler work (baxi duo tec), are you supposed to open it or something?