Mother-in-law has a problem which I entered on another post.
While I was looking at her pipework (the house, not her personally) I noticed one of the radiators is a double panel one where the front panel gets nicely hot but the rear panel stays cold. Each panel has its own bleeds screw. Front one bleeds OK - no air, just water. I tried to bleed the rear one but seemed to be turning the bleed screw a helluva long way and getting nothing out - neither air nor water. It's not the end of the world - the radiator is in a spare bedroom and gets plenty hot enough anyway. But it got me wondering - how long is the thread on an average bleedscrew - how far can I turn it before it pops out? Well, I did warn you in teh subject that it was a dumb question.
While I was looking at her pipework (the house, not her personally) I noticed one of the radiators is a double panel one where the front panel gets nicely hot but the rear panel stays cold. Each panel has its own bleeds screw. Front one bleeds OK - no air, just water. I tried to bleed the rear one but seemed to be turning the bleed screw a helluva long way and getting nothing out - neither air nor water. It's not the end of the world - the radiator is in a spare bedroom and gets plenty hot enough anyway. But it got me wondering - how long is the thread on an average bleedscrew - how far can I turn it before it pops out? Well, I did warn you in teh subject that it was a dumb question.