Testing for inhibitor level

Discussion in 'Plumbing and Central Heating' started by Goldspoon, 9 Jun 2009.

  1. Goldspoon

    Goldspoon

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    Is their a test for checking inhibitor strength from a water sample? Fernox do one but only for THEIR brand inhibitor. Anything generic anybody know of?
     
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  3. bengasman

    bengasman

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    What is the point of checking for inhibitor level? In case of any doubt, stick another bottle in; they are only 15 quid.
     
  4. zetland76

    zetland76

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    Read somewhere ---
    Draw some water from the CH system into a clean jar. In another jar put some ordinary tap water. Chuck a nail in each and check how quickly each rusts. Not very scientific but should give indication of presence inhibitor.
     
  5. seco services

    seco services

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    thats a long wait in a customers house.
    i useally use a tds meter
     
  6. glasgowgas

    glasgowgas

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    seco

    what reading would you get with an adequately inhibited system?

    tds of our mains water is between 20-30.
     
  7. JohnD

    JohnD

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    it's a good DIY tip though

    As a householder, I do that and wouldn't know a tds meter if it fell on my head.
     
  8. seco services

    seco services

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    about 350mg/l

    but it has its down sides as many inhibitors are mainly organic and give wrong readings on a tds meter.
    best use the liquid form test kits .
     
  9. oilman

    oilman

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    It'll cost as much to test it as to put more inhibitor in.
     
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  11. Onetap

    Onetap

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    No; you'd need to know what was in the inhibitors and the snake oil salesmen, sorry, water treatment companies won't tell you. You can buy test kits for individual chemicals, e.g., from Camlabs. Testing the pH level is usually a good indication, but you need to know what it is in a clean system.

    Oh dear; another gas geezer who should stick to gas. BG trained? Never mind.

    BG do seem to be enthusiastic about selling power flushes. One day the dear old homeowners are going to twig the embarrassing fact that, if the maintenance technicians (or engineers, as BG charmingly call them) were competent they wouldn't have to power flush the corrosion debris out of the heating system.


    An internet myth. It doesn't work. It would only show the presence of dissolved oxygen. The corrosion is usually caused by the ingress of oxygen from over-pumping, electrolysis or oxygen permeable plastic pipes. There isn't much dissolved oxygen in a sample because it gets quickly consumed corroding the radiators. The sample absorbs oxygen when you drain it from the system.
     
  12. wilhelm

    wilhelm

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    one tap.....define an "internet myth" please.

    and youre from essex.........

    ffs.

    :cry:
     
  13. JohnD

    JohnD

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    I think he's too young to remember Fernox including this method in their instructions.

    Of course, that was before the 'net
     
  14. seco services

    seco services

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    and whats that got to do with it ?
     
  15. wilhelm

    wilhelm

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    just about EVERYTHING.
     
  16. seco services

    seco services

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    well what ?
     
  17. wilhelm

    wilhelm

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    nothing, youve done the job for me.... :LOL: :LOL: :LOL:
     
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