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Adding inhibitor to a sealed system

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  • Pincher
    Pincher Posts: 6,552 Forumite
    1,000 Posts Combo Breaker
    oldskoo1 wrote: »
    Is this on a towel rail? I don't have one of those but it would be much easier.


    http://www.plumbnation.co.uk/site/fernox-total-filter-tf1-magnetic-filter/


    Actually, Magnaclean seems to have redesigned theirs with a screw-on lid too.


    http://www.plumbnation.co.uk/site/magnaclean-professional/
  • dogshome
    dogshome Posts: 3,878 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    One litre of X100 will do?

    As AndyPK has posted there is a Test Kit - This comprises of a small test tube which is filled with system water, ( taken after the system has been run so that it is well mixed), to which a pill is added which reacts with the X100 to change the colour.

    With the kit is a Shade Card which shows what the colour should be for the correct % of X100, and what it is if the mixture is too weak.
    It was useing the test Kit after doseing with one bottle of X100 which according to it's label was sufficient for my system, that showed me it the mixture was weak and prompted my phone call Sentinel - It took some effort to measure how much water the system held, and 3 bottles of X100 to get the colour shade correct.
  • diywhynot
    diywhynot Posts: 742 Forumite
    dogshome wrote: »
    One litre of X100 will do?

    Yes. 1 litre will do up to 10 radiators/100 litre volume in CH system. See here.
  • diywhynot
    diywhynot Posts: 742 Forumite
    For future reference... see here for typical radiator volumes (p. 8)
  • diywhynot
    diywhynot Posts: 742 Forumite
    dogshome wrote: »
    I rang Sentenel and was told a volume of 10% was the ideal and Rad system will require 4/5 bottles of X100.

    Are you sure Sentinel rep didn't say 1%? If he/she said 10% some reprogramming/script editing is in order at their end..unless the intention is to oversell to DIYers .;)
  • smjxm09
    smjxm09 Posts: 668 Forumite
    Part of the Furniture 500 Posts Combo Breaker
    Don't forget that a double radiator counts as 2 radiators
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