Cheers! asked:
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I need to carry out a series of experiments to investigate the water quality of water samples like bottled water, tap water and maybe the fountain water.
Jonathan asked:
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What does calcium hardness, CO2, PH, nitrate, and phosphate have to do with water quality? Would you want these levels to be higher or lower if you wanted good water quality? What’s a generally ‘good’ level of these for water?