I need to measure the hardness of our water (I suspect the softener isn't working). Can I find either of the test kits I have? Can I f*ck.
Are these digital TDS ("Total Dissolved Solids") test "pens" any good?
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I need to measure the hardness of our water (I suspect the softener isn't working). Can I find either of the test kits I have? Can I f*ck.
Are these digital TDS ("Total Dissolved Solids") test "pens" any good?
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