Correct assumption, if the thread is even real. But then again, water doesnt need to be tested, we just use "feel" for our testing protocols.
FYI, part of being a DIY'r is to own the tools that allow you to do the job right. For a softening system DIY, a proper test kit is the first item that should be purchased, or have a proper water test done. Why is this a point of contention with anyone? Is the Hach 5B so complex and expensive that it is an unreasonable request for someone to get it? I suppose you should do the timing on cars by ear, who needs a timing strobe light? (obviously for older cars, dont want to start another argument).
BTW, my wifes are real.

Still waiting to see a runway model...
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