The water supplied by Delhi Municipal Authorities is of approx. 400 TDS, whereas the TDS of the boring water is approx. 800. And I understand that the RO process is the best for purification purposes. Now  If I am using RO for the water purification for drinking purposes, the TDS of the municipal water comes to approx. 25 with Ph 6.9 and that of the ground water to approx 45 . I have also seen an article from the Water Quality Association stating that there is no health hazards of drinking low tds Water Hence , my question is: which water is the best for drinking purposes.

Anushree

anutrash98@yahoo.com