Calcium hardeness levels

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  • Author
    Posts
  • #24844
    Carl Lester
    Participant

    Pool water should be maintained for bather comfort, and grout should withstand that water. Ideally, calcium hardness should be maintained between
    75
    mg/l and
    150
    mg/l.

    Incorrect

    Can you please help with this as i cant sem to get past the course onto the next level. I really cant find another answer than what i have put in so im very confused that this is not the correct levels for Calcium levels.

    Many Thanks

    #24850
    Astrid
    Participant

    Hi Carl,

    I can see you found the answer.

    Kind regards,

    Astrid

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