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#6
04-15-2012, 03:00 AM
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Hmmm...I was just thinking here...do you by chance have your good water and waste water lines mixed up? Try testing the other line. Going from 50 ppm calcium to 800 ppm calcium almost seems like it is the waste water concentration.
One more thing...why are you testing calcium instead of using a calibrated TDS meter? TDS meters are cheap. 
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