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How can I increase the pH of the water in a radiant floor heating system?

storer
storer Member Posts: 2
in Radiant Heating
The boiler manufacturer (Cleanburn) recommends that the system fluid have a pH between 8.5 and 9.5. The water out of the tap has a pH of 7.0, what is the best way to increase the pH? This is a 5000 sq. ft. radiant floor heating system with about 200 gallons of water in the system (due to a large buffer tank).

Comments

  • GroundUp
    GroundUp Member Posts: 2,113
    I like Rhomar 922 personally, it can control pH as well as adds corrosion inhibitor
    kcopp
  • Zman
    Zman Member Posts: 7,611
    All the big treatment companies will have a product for this purpose. Fernox, Rhomar....
    @hot_rod likely has a recommendation.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • Zman
    Zman Member Posts: 7,611
    @Erin Holohan Haskell
    We seem to have parallel posts. Any chance they could be combined?
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • Erin Holohan Haskell
    Erin Holohan Haskell Member, Moderator, Administrator Posts: 2,354
    Zman said:

    @Erin Holohan Haskell
    We seem to have parallel posts. Any chance they could be combined?

    We've combined these posts. Thanks!

    President
    HeatingHelp.com

  • hot_rod
    hot_rod Member Posts: 23,392
    What about hardness and TDS? If you just want a Ph boost they have products for that. i prefer a treatment that would buffer Ph, scavenge O2, provide some film protection. But you want to put conditioners in a cleaned system with good water quality.
    https://www.rhomarwater.com/Products.html
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • HomerJSmith
    HomerJSmith Member Posts: 2,635
    The MSDS active ingredient in PH increasers is KOH (Potasium Hydroxide).
  • storer
    storer Member Posts: 2
    Thanks for the input, I have been using Sentinel products and they have a corrosion inhibitor, but had nothing to say about increasing pH. I'll look into the Rhomar and Fernox products and let you all know if I have further questions. Thanks again!

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