Whilst eveyone jumped onto the 'just convert to a sealed system' bandwagon (even though I have previously stated I have old pipework in this house) the problem is likely to be that the F&E cistern in the loft only has 4 cm of water in it. I would think that a slight bending of the ball valve arm to allow the tank to fill up to 10cm will then allow all my top floor rads to be fully purged of air and filled with water.
You will recall this recent thread where only one expert actually posted a helpful post, rather than a one line answer.
//www.diynot.com/diy/threads/quick-central-heating-question.426688/
So, I stand by my original statement, these forums are mostly ****e. Sealed system my arse !!
You will recall this recent thread where only one expert actually posted a helpful post, rather than a one line answer.
//www.diynot.com/diy/threads/quick-central-heating-question.426688/
So, I stand by my original statement, these forums are mostly ****e. Sealed system my arse !!