How to Add Minerals Back to RO Water
Reverse osmosis does its job almost too well. It strips out lead, chlorine, and nitrates, but it also pulls calcium and magnesium down to near zero. What comes out is clean but flat, slightly acidic, and missing the body that makes water satisfying to drink. The fix is straightforward once you know which method fits your situation. What You Are Actually Fixing Calcium and magnesium are responsible for the body, mild sweetness, and mouthfeel of good drinking water. RO water typically measures below 10 ppm for each, sometimes closer to zero. Without dissolved solids to buffer it, RO water absorbs carbon dioxide from the air and drifts toward acidity. That slightly harsh finish on the first sip is a pH effect, not a filtration problem. The Main Approaches The easiest method to begin with is mineral drops. ro water remineralization drops dissolve instantly and require no equipment beyond the bottle itself. The limitation is consistency, since hand dosing varies slightly each time. A remineralization cartridge installs inline as the final stage of your RO system. There is nothing to dose once it is in place. water remineralization filter for one or two replacements per year depending on household size. Pitchers work through gravity, passing water through mineral media without any plumbing. Look for a model that lists calcium and magnesium specifically rather than a generic mineral blend. Blending RO water with natural spring water at a 1:1 ratio transfers minerals directly without any device. Use water labeled spring water rather than purified, since purified versions have had their minerals removed. How to Check What You Have Testing takes about thirty seconds and gives you a concrete number to work with. The practical target for everyday drinking water is 50 to 150 ppm. If the reading comes back above 200 ppm, reduce the dose or adjust the blend ratio and retest. Any of the four methods above can be implemented today without professional help. Pick the approach that fits your household size and maintenance tolerance, verify with a TDS meter, and adjust from there.