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System Drain Down and Clean

Discussion in 'Plumbing and Central Heating' started by GoodDIYjob, 15 Nov 2017.

  1. GoodDIYjob

    GoodDIYjob

    Joined:
    8 Jan 2014
    Messages:
    297
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    23
    Location:
    Surrey
    Country:
    United Kingdom
    So I recently did some work replacing rad valves, replacing 2 x rads with broken bleed valves and used some Fernox F3 for 1 week.

    Since then I've drained down completely twice. And run the drain cock open and filling loop open for a while.

    The Magnetic filter does have some extra gunk but not that much. The water draining to the drain was more or less sediment free. I guess it is hard to get the velocity to force it out of the 22mm backbone piping below drain cock level.

    Anyway. Even after draining twice and flushing, there is a hint of golden colour and slight smell of the cleaner.

    Is it ok to ad inhibitor now or more drain downs? Would Sentinel X800 do a lot more in a 24 hour hot cycle?

    Thanks
     
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    DIYnot Local

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