What is TDS?
Total Dissolved Solids (TDS) are the total weight of all solids (minerals, salts or metals) that are dissolved in a given volume of water, expressed in milligrams per liter (mg/L) or in parts per million (PPM).
The Lower the TDS level the better for your body’s cells to get hydrated.
The higher the TDS level, the more probability of harmful contamination on the water.
The EPA’s maximum contaminant levels of TDS in secondary drinking water is 500mg/L (500 PPM).