Plain-English guides to home water readings, from Know Your Water Baseline.
TDS, EC, temperature, salinity, GH, turbidity, TOC, COD and UV254 in plain English: what each indicator reflects, and what none of them can tell you.
When and where to sample, how to use the cup and log, and how to repeat readings so the numbers are comparable.
Re-test, check calibration, compare sources, and know when to book a state-certified lab.
