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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Weird radiator filling - or rather non-filling
Hi everybody..
A bit of a puzzler that I'm racking my brains over.... I'll set the scene: My mums heating system (gravity fed with a header tank in the roof space) has three or four rads upstairs , 3 normal and 1 slightly taller towel rad in the bathroom not hugely taller , 4 ft perhaps? Anyway: It only gets hot at the bottom 1/3 - the usual problem you'd think , bleed it ? So I open the screw let out a tiny bit of pressurised air, heat rises a bit up the rad (one bar) but no further air (or water) So I remove the complete nut that houses the bleed screw at top of rad, No sign of water or air 'rush'? Soooo thinking laterally, I start to fill the rad with a kettle!, several kettles and although the rad is now getting hot close to top , the water never reaches to top of rad ??? and then I hear running water outside the house, on inspection the roof space overflow pipe is letting water out , if I stop with the kettle filling the roofspace overflow eventually stops , so this is kettle water leaving the building!! What's wrong ? and how the heck is the rad not filling up when the overflow is obviously above the rad in question? |
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