water report question

I have recieved my water report from ward labs and my sulfate isSO4-S 9  I thought I read somewhere on here that I should double that number when inputting it into a water calculator is this true?

You will find that Bru’n Water already has that information noted on the Water Report Input sheet.  Yes, you would multiply the SO4-S value reported by Ward by 3 to convert it to its true SO4 concentration.  You would also multiply the NO3-N value by 4.43 to convert to the true NO3 concentration.

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Thanks