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Water hardness

Discussion in 'Water Chemistry' started by Dee Vura, Jul 14, 2019.

  1. Dee Vura

    Dee Vura New Member

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    Is there a preferred test kit for total hardness.

    Thanks Dee
  2. dw1305

    dw1305 Well-Known Member 5 Year Member

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    Hi all,
    Most tests for hardness (both dGH and dKH) actually test for alkalinity and then make the assumption that most of that hardness comes from limestone (CaCO3). It is usually a fair assumption.

    The <"titrimetric kits"> (ones where you drip the reagent into water sample and look for a colour change) are likely to be more accurate than the test sticks, but test sticks will give you a "Ball park" figure.

    In Europe (and the UK) you can get water hardness figures from your water supplier, not sure about in the USA.

    Have a look at <"advice please"> as well.

    cheers Darrel