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Showing results for tags 'sludge'.
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I recon we have a case of sludge flake - and this isn't the breakfast cereal type of flake either. Help us sort it out, please. We've drained the system down twice now, and radiator performance is at best patchy. So next weekend, we're determined to Drain down Take the rads off and flush them and do our best to flush the 'tubes'.... and that's where we'd like some help When the system is heated by the fire, and the pump is circulating hot water, you can feel the change (drop) in temperature where the wider pipe meets the narrow one. We can hear little pairs of castanets rattling in the pipe (together with entrained air from a leaky valve). Once you take the rads off and clean them out, how do you clean out the small bore pipe?
