1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Cleaning CH system using Sentinel X800

Discussion in 'Plumbing and Central Heating' started by David937, 26 Jul 2009.

  1. David937

    David937

    Joined:
    7 Aug 2008
    Messages:
    1,064
    Thanks Received:
    49
    Location:
    Farndon
    Country:
    United Kingdom
    Hi there,

    What is the basic method to flush out a central heating system with X800?

    Once you have got the chemical in the system is it best circulated at 82C and max pump speed?

    How long should it be circulated for?

    When you drain the X800, do you refill the system with plain water and drain it again to drain away any remaining loosened dirt?

    Thank you for your help
     
  2. Sponsored Links
  3. bengasman

    bengasman

    Joined:
    28 Jan 2005
    Messages:
    34,181
    Thanks Received:
    3,124
    Location:
    London
    Country:
    United Kingdom
    You might find info on this in FAQ
     
  4. mickyg

    mickyg

    Joined:
    24 Aug 2005
    Messages:
    16,007
    Thanks Received:
    3,325
    Location:
    Cornwall
    Country:
    United Kingdom
    max temp, max speed.
    run rads individually for 20-30mins each.
    run hot water also on its own 30mins
    depending on size of system, 6-10hours total.
    continue to flush through with fresh water until water runs clear without sediment. catch some in the palm of your hand, you will see small bits easier.

    or even better get yourself one of these


    http://www.proflush.co.uk/proflush.htm ;)
     
    • Thanks Thanks x 1
  5. David937

    David937

    Joined:
    7 Aug 2008
    Messages:
    1,064
    Thanks Received:
    49
    Location:
    Farndon
    Country:
    United Kingdom
    Thanks, I don't think I can afford a power flushing machine just yet.

    ISTR someone saying that X800 only needs to be circulated fro two hours.

    Any further input appreciated.
     
  6. mickyg

    mickyg

    Joined:
    24 Aug 2005
    Messages:
    16,007
    Thanks Received:
    3,325
    Location:
    Cornwall
    Country:
    United Kingdom
    2hrs is not long enough. was that one of those people that change a boiler in a day?
     
  7. bengasman

    bengasman

    Joined:
    28 Jan 2005
    Messages:
    34,181
    Thanks Received:
    3,124
    Location:
    London
    Country:
    United Kingdom
    You were advised by a pro how to do it, but if it makes you happier: just stick it in for an hour, the system will be brandspanking clean following a quick rinse.
     
  8. David937

    David937

    Joined:
    7 Aug 2008
    Messages:
    1,064
    Thanks Received:
    49
    Location:
    Farndon
    Country:
    United Kingdom
    This is what I read:

    "i have done the 1 hour with ch at full blast as well. a lot of power flusher are not better then ch pumps anyway"

    But I will do it the way you advised me.

    Thank you :D
     
  9. mickyg

    mickyg

    Joined:
    24 Aug 2005
    Messages:
    16,007
    Thanks Received:
    3,325
    Location:
    Cornwall
    Country:
    United Kingdom
    well the 1 hour will do diddly squat and the comment about powerflushers I actually agree with. Loads of sh1te machines about, often called a "junior" or something or other, or sold on ebay. Basically a machine with half the power of a proper one...no point. There's only about 3 or 4 models in the UK I'd actually spend money on. The machine does give you a few other advantages mind you even the carp ones.
     
  10. Sponsored Links
  11. David937

    David937

    Joined:
    7 Aug 2008
    Messages:
    1,064
    Thanks Received:
    49
    Location:
    Farndon
    Country:
    United Kingdom
    What are the machines that you would spend money on?

    Norstrom?
    Kamco?
    Sentinel Jet-flo?
     
  12. mickyg

    mickyg

    Joined:
    24 Aug 2005
    Messages:
    16,007
    Thanks Received:
    3,325
    Location:
    Cornwall
    Country:
    United Kingdom
    Well, the Norstrom proflush is the best you can get imo. The kamco cf90 is just as good, but i don't think the build quality is as good and plastic bits break. Sentinel jetflush is supposed to be good and i know good engineers who swear by it, so i would be fairly confident with it, and the same to be said with the fernox machine.
     
  13. David937

    David937

    Joined:
    7 Aug 2008
    Messages:
    1,064
    Thanks Received:
    49
    Location:
    Farndon
    Country:
    United Kingdom
    Thanks, and I just remembered you said to run the hot water for 30 mins, so if the boiler is a combi do you simply use the hot water for 30 mins?
     
  14. mickyg

    mickyg

    Joined:
    24 Aug 2005
    Messages:
    16,007
    Thanks Received:
    3,325
    Location:
    Cornwall
    Country:
    United Kingdom
    thats to clean the hw coil and associated pipework. If its a combi then you yes, just run a tap for 15mins, just enough flow to operate boiler, usually about 2l/min. Do this first though, before rads, then repeat with fresh water last after rinsing out rads. Basically to avoid getting any debris from rads caught in plate.
     
  15. David937

    David937

    Joined:
    7 Aug 2008
    Messages:
    1,064
    Thanks Received:
    49
    Location:
    Farndon
    Country:
    United Kingdom
    Thanks for all the information.

    I need to go and get myself an adjustable spanner.
     
  16. corgiman

    corgiman

    Joined:
    25 Aug 2003
    Messages:
    10,668
    Thanks Received:
    54
    Location:
    Surrey
    Country:
    United Kingdom
    I know tha kamco gives a decent training session free after you have brought one their machines do the others do the same??
     
  17. bahco make the only adjustable spanners that are worthwhile.
     
Loading...

Share This Page