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minerals in water

smklinsmklin Posts: 66Member
I have a few TT boilers that have heat exchangers going bad in them . I did but in glycol when I started up the system . Can glycol and mineral in water react to make them leak ????

Comments

  • Jamie HallJamie Hall Posts: 8,945Member
    Not the combination. But minerals -- if there are enough of certain ones -- can ruin a boiler astonishingly quickly. It is best to use deionized water for your initial fill if there is any real concern about the water quality.
    Jamie



    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.



    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • smklinsmklin Posts: 66Member
    I am in a area that has high mineral content .DEIONIZED WATER would RO water work
  • Jamie HallJamie Hall Posts: 8,945Member
    smklin said:

    I am in a area that has high mineral content .DEIONIZED WATER would RO water work

    Yes.
    Jamie



    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.



    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • kcoppkcopp Posts: 3,170Member
    When you say "going bad" please explain... What is the entire system have for components? Which boiler?
  • HomerJSmithHomerJSmith Posts: 477Member
    edited April 2
    Reverse Osmosis will take you a while to do and your cartridges and membrane must be relatively new.

    What minerals can do is shorten the life of the additive package in glycol, which is why you use DI, RO, or distilled water.

    Chlorine is a no, no, but where is the leaking happening? Too much mineralization can build up on the HX and may create hot spots which may weaken the tubes.

    Water quality is becoming a big issue with the newer boilers, especially with glycol.
  • hot rod_7hot rod_7 Posts: 9,030Member
    edited April 2
    Leaks at the welds?

    Chlorides in high levels can be a problem on stainless boiler. In the manual they give you an acceptable range for TDS and chlorides typically.

    I have not found many places in the US where tap water is adequate quality for hi-efficiency boilers. Either treat the water DI or RO, buy treated water, many water treatment suppliers have RO or DI water to purchase, or use pre-mixed glycol.

    Here is a handful of boiler water specs. Viessmann, in the center has a different spec as the boilers increase in size. 2 PPM on larger boilers, that's not commonly found water :)



    Bob "hot rod" Rohr
    trainer for Caleffi NA
    The magic is in hydronics, and hydronics is in me
  • smklinsmklin Posts: 66Member
    The heat exchangers start to leak in them .It has triangle tube boilers, aquatherm piping, grundfos pumps .
  • AdrianeGrayAdrianeGray Posts: 2Member
    Several minerals commonly found in the tap water are:
    Calcium, Magnesium, Sodium, Potassium, Phosphorus etcetera.
  • ZmanZman Posts: 4,420Member
    @AdrianeGray
    Are you visiting this site in order to learn English?
    Your other post https://forum.heatinghelp.com/discussion/165334/which-heating-system-is-the-best-for-home#latest
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
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