Water for Icemaker

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Robert May, Jan 11, 2013.

  1. Robert May

    Robert May New Member

    Messages:
    2
    Location:
    Wayland, MI
    Should I supply hard water or soft water for the icemaker on my new refrigerator. Both are available with about the same difficulty.
  2. big2bird

    big2bird IBEW Electrician

    Messages:
    141
    Location:
    Anaheim, Ca.
    I am quite sure you do not want to ingest soft water.
  3. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    4,185
    Location:
    NW Ontario, Canada
    Why not? I use only RO filtered "soft" water for ingesting.
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,255
    Location:
    Cave Creek, Arizona
    The only reason for not ingesting soft water would be if you are on a low sodium diet. RO water is NOT the same as "soft water". Hard water will give you cloudy cubes because of the suspended minerals in it. Some sites will say not to us RO water, but my icemakers, and others I service, have used it for decades without any problem, and with clear cubes.
  5. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    4,185
    Location:
    NW Ontario, Canada
    Just how much sodium do you expect to get from ice cubes to make it a concern?

    True. It is softer. RO filtration can affect the pH and also being the "universal solvent" that it is, can be "aggressive" in dissolving some metals such as copper.

    Yes, I do get nice clear cubes from RO water.
  6. big2bird

    big2bird IBEW Electrician

    Messages:
    141
    Location:
    Anaheim, Ca.
    I use my RO to feed my icemaker also. When he said "soft water" I assumed he meant a salt water unit.
  7. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    4,185
    Location:
    NW Ontario, Canada
    Even so, the amount of sodium that would be added to the diet from ice cubes made with soft water is so minuscule as to be laughable.
  8. toddo

    toddo New Member

    Messages:
    8
    Longtime lurker, first time poster. Slight hijack, please.

    Whole house remodel, ran copper for an icemaker, figuring it would come off a RO filter under sink. Heard a few theories about compatibility of RO water and copper, wondering what the collective wisdom of this board is. Copper is buried in wall.

    TIA, Todd
  9. Chad Schloss

    Chad Schloss Member

    Messages:
    330
    Location:
    USA
    You shouldn't use copper after the water has been treated by a RO unit.
  10. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,319
    Location:
    New England
    THere's a reason water is called the universal solvent. RO treated water is quite aggressive and is much more able to attack (dissolve) things verses more common water that contains minerals. Probably not a good idea to use it with a copper line.
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