What are the minimum parameters we have to maintain in the drinking water, and what is the limit ??
RO treated water usually have low TDS , which usually varies from 20 ppm to 60 ppm. This is a fact, need minerals in water but that minerals should be in limit and without toxic. Permissible limits of ionic species in drinking water is already defined. Mineral supplements can be added by food also. Thus safe water should get more importance than contravery of less mineral by RO.
Dear Saravanan,
Here is an interesting document concerning health risks from drinking demineralised water. You will also find the quality standards required. This document is from WHO.
http://www.who.int/water_sanitation_health/dwq/nutrientschap12.pdf?ua=1
With my best regards
Prof. Bachir ACHOUR
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