Another microbore blocked radiators problem

Discussion in 'Plumbing and Central Heating' started by gebbione, 22 Nov 2019.

  1. gebbione

    gebbione

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    Same as thread https://www.diynot.com/diy/threads/microbore.67541/


    I have some of my radiators with microbore system and twin valves blocked.
    How to fix the problem? I thought the problem was with the system being full of sludge so i had a full flush done but that did not fix the problem.

    All I can see online is how to clean a standard radiator

    But I have no clue on what to do regarding the twin valve system or the insertion pipe.

    This is how my valves and rads look like
     
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  2. muggles

    muggles

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    What makes you think the radiator is blocked? Much more likely is that the injector pipe has fallen off or corroded away. Best option is to get everything re-piped to have one valve at either end of the radiator
     
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  4. gebbione

    gebbione

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    I am indeed thinking about changing the rads to a normal two entry system. Amend the pipework to have a standard entry on one side with thermostatic valves and the exit on the other side
    What I would like to avoid is to have to repipe the whole system but in the meantime I was wondering if flushing the radiators manually would be a fix at all and how to go about it.
     
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  5. muggles

    muggles

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    You'll need to remove the plug from the opposite end of the radiator to the valve if you want to flush it with a hosepipe. By thre time you've done that, you may as well put a valve in there rather than replacing the plug, then extend one pipe along underneath the radiator to connect it
     
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