hardness questions
I just had a hardness test go bad. I knew it was bad when I tested reverse
osmosis water and it said it was off the chart hard. The old worn out
solution looked orange in the bottle, and the new one (same brand) looked
green. They definitely can wear out! Allison
Is my hardness test so old it doesn't work anymore, or do I have a
problem?
B
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Brian Heller
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