Is Low TDS Water Harmful? Drinking water quality draws strong interest from people wanting clear answers. One key question that occurs often is whether water with very low total dissolved solids poses any risks. Is low TDS water harmful is the phrase many use in searches to find clarity about the safety of water from reverse osmosis or distillation. Visit the link for more information: https://www.netsolwater.com/is-low-tds-water-harmful.php?blog=7063