
Total robbery! I ordered it on 06/29/2014. The package arrived 2 days later but one roll expired on 05/30/14 and the other on 09/14/99. To top it off, the test doesn't work at all. My untreated well water tested at Water Test America has a CaCO3 level of 250 ppm or 14.6 grains per gallon. No color change was observed at any concentration using the test strips, indicating that the test does not detect CaCO3. Use strips to determine Water Works Total Hardness.

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